Source

emacs / src / lisp.h

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
/* Fundamental definitions for GNU Emacs Lisp interpreter.
   Copyright (C) 1985,86,87,93,94,95,97,98,1999,2000, 2001
     Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Declare the prototype for a general external function.  */
#if defined (PROTOTYPES) || defined (WINDOWSNT)
#define P_(proto) proto
#else
#define P_(proto) ()
#endif

#if 0
/* Define this temporarily to hunt a bug.  If defined, the size of
   strings is redundantly recorded in sdata structures so that it can
   be compared to the sizes recorded in Lisp strings.  */

#define GC_CHECK_STRING_BYTES 1
#endif /* 0*/


/* These are default choices for the types to use.  */
#ifdef _LP64
#ifndef EMACS_INT
#define EMACS_INT long
#define BITS_PER_EMACS_INT BITS_PER_LONG
#endif
#ifndef EMACS_UINT
#define EMACS_UINT unsigned long
#endif
#else /* not _LP64 */
#ifndef EMACS_INT
#define EMACS_INT int
#define BITS_PER_EMACS_INT BITS_PER_INT
#endif
#ifndef EMACS_UINT
#define EMACS_UINT unsigned int
#endif
#endif

/* Extra internal type checking?  */
extern int suppress_checking;
extern void die P_((const char *, const char *, int));

#ifdef ENABLE_CHECKING

#define CHECK(check,msg) ((check || suppress_checking		\
			   ? (void) 0				\
			   : die (msg, __FILE__, __LINE__)),	\
			  0)

/* Let's get some compile-time checking too.  */
#undef NO_UNION_TYPE

#else

/* Produce same side effects and result, but don't complain.  */
#define CHECK(check,msg) ((check),0)

#endif

/* Used for making sure that Emacs is compilable in all
   configurations.  */

#ifdef USE_LISP_UNION_TYPE
#undef NO_UNION_TYPE
#endif

/* Define an Emacs version of "assert", since some system ones are
   flaky.  */
#ifndef ENABLE_CHECKING
#define eassert(X)	(void) 0
#else /* ENABLE_CHECKING */
#if defined (__GNUC__) && __GNUC__ >= 2 && defined (__STDC__)
#define eassert(cond) CHECK(cond,"assertion failed: " #cond)
#else
#define eassert(cond) CHECK(cond,"assertion failed")
#endif
#endif /* ENABLE_CHECKING */

/* Define the fundamental Lisp data structures.  */

/* This is the set of Lisp data types.  */

enum Lisp_Type
  {
    /* Integer.  XINT (obj) is the integer value.  */
    Lisp_Int,

    /* Symbol.  XSYMBOL (object) points to a struct Lisp_Symbol.  */
    Lisp_Symbol,

    /* Miscellaneous.  XMISC (object) points to a union Lisp_Misc,
       whose first member indicates the subtype.  */
    Lisp_Misc,

    /* String.  XSTRING (object) points to a struct Lisp_String.
       The length of the string, and its contents, are stored therein.  */
    Lisp_String,

    /* Vector of Lisp objects, or something resembling it.
       XVECTOR (object) points to a struct Lisp_Vector, which contains
       the size and contents.  The size field also contains the type
       information, if it's not a real vector object.  */
    Lisp_Vectorlike,

    /* Cons.  XCONS (object) points to a struct Lisp_Cons.  */
    Lisp_Cons,

    Lisp_Float,

    /* This is not a type code.  It is for range checking.  */
    Lisp_Type_Limit
  };

/* This is the set of data types that share a common structure.
   The first member of the structure is a type code from this set.
   The enum values are arbitrary, but we'll use large numbers to make it
   more likely that we'll spot the error if a random word in memory is
   mistakenly interpreted as a Lisp_Misc.  */
enum Lisp_Misc_Type
  {
    Lisp_Misc_Free = 0x5eab,
    Lisp_Misc_Marker,
    Lisp_Misc_Intfwd,
    Lisp_Misc_Boolfwd,
    Lisp_Misc_Objfwd,
    Lisp_Misc_Buffer_Objfwd,
    Lisp_Misc_Buffer_Local_Value,
    Lisp_Misc_Some_Buffer_Local_Value,
    Lisp_Misc_Overlay,
    Lisp_Misc_Kboard_Objfwd,
    /* Currently floats are not a misc type,
       but let's define this in case we want to change that.  */
    Lisp_Misc_Float,
    /* This is not a type code.  It is for range checking.  */
    Lisp_Misc_Limit
  };

/* These values are overridden by the m- file on some machines.  */
#ifndef VALBITS
#define VALBITS (BITS_PER_EMACS_INT - 4)
#endif

#ifndef GCTYPEBITS
#define GCTYPEBITS 3
#endif

#ifndef NO_UNION_TYPE

#ifndef WORDS_BIG_ENDIAN

/* Definition of Lisp_Object for little-endian machines.  */

typedef
union Lisp_Object
  {
    /* Used for comparing two Lisp_Objects;
       also, positive integers can be accessed fast this way.  */
    EMACS_INT i;

    struct
      {
	EMACS_INT val  : VALBITS;
	EMACS_INT type : GCTYPEBITS + 1;
      } s;
    struct
      {
	EMACS_UINT val : VALBITS;
	EMACS_INT type : GCTYPEBITS + 1;
      } u;
    struct
      {
	EMACS_UINT val		: VALBITS;
	enum Lisp_Type type	: GCTYPEBITS;
	/* The markbit is not really part of the value of a Lisp_Object,
	   and is always zero except during garbage collection.  */
	EMACS_UINT markbit	: 1;
      } gu;
  }
Lisp_Object;

#else /* If WORDS_BIG_ENDIAN */

typedef
union Lisp_Object
  {
    /* Used for comparing two Lisp_Objects;
       also, positive integers can be accessed fast this way.  */
    EMACS_INT i;

    struct
      {
	EMACS_INT type : GCTYPEBITS+1;
	EMACS_INT val  : VALBITS;
      } s;
    struct
      {
	EMACS_INT type : GCTYPEBITS+1;
	EMACS_UINT val : VALBITS;
      } u;
    struct
      {
	/* The markbit is not really part of the value of a Lisp_Object,
	   and is always zero except during garbage collection.  */
	EMACS_UINT markbit	: 1;
	enum Lisp_Type type	: GCTYPEBITS;
	EMACS_UINT val		: VALBITS;
      } gu;
  }
Lisp_Object;

#endif /* WORDS_BIG_ENDIAN */

#ifdef __GNUC__
static __inline__ Lisp_Object
LISP_MAKE_RVALUE (Lisp_Object o)
{
    return o;
}
#else
#define LISP_MAKE_RVALUE(o) (o) /* XXX - keeps arg as rvalue.  */
#endif

#endif /* NO_UNION_TYPE */


/* If union type is not wanted, define Lisp_Object as just a number.  */

#ifdef NO_UNION_TYPE
#define Lisp_Object EMACS_INT
#define LISP_MAKE_RVALUE(o) (0+(o))
#endif /* NO_UNION_TYPE */

#ifndef VALMASK
#define VALMASK ((((EMACS_INT) 1)<<VALBITS) - 1)
#endif
#define GCTYPEMASK ((((EMACS_INT) 1)<<GCTYPEBITS) - 1)

/* Two flags that are set during GC.  On some machines, these flags
   are defined differently by the m- file.  */

/* This is set in the car of a cons and in the plist slot of a symbol
   to indicate it is marked.  Likewise in the plist slot of an interval,
   the chain slot of a marker, the type slot of a float, and the name
   slot of a buffer.

   In strings, this bit in the size field indicates that the string
   is a "large" one, one which was separately malloc'd
   rather than being part of a string block.  */

#ifndef MARKBIT
#define MARKBIT ((EMACS_INT) ((EMACS_UINT) 1 << (VALBITS + GCTYPEBITS)))
#endif /*MARKBIT */

/* In the size word of a vector, this bit means the vector has been marked.
   In the size word of a large string, likewise.  */

#ifndef ARRAY_MARK_FLAG
#define ARRAY_MARK_FLAG ((MARKBIT >> 1) & ~MARKBIT)
#endif /* no ARRAY_MARK_FLAG */

/* In the size word of a struct Lisp_Vector, this bit means it's really
   some other vector-like object.  */
#ifndef PSEUDOVECTOR_FLAG
#define PSEUDOVECTOR_FLAG ((ARRAY_MARK_FLAG >> 1) & ~ARRAY_MARK_FLAG)
#endif

/* In a pseudovector, the size field actually contains a word with one
   PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
   indicate the actual type.  */
enum pvec_type
{
  PVEC_NORMAL_VECTOR = 0,
  PVEC_PROCESS = 0x200,
  PVEC_FRAME = 0x400,
  PVEC_COMPILED = 0x800,
  PVEC_WINDOW = 0x1000,
  PVEC_WINDOW_CONFIGURATION = 0x2000,
  PVEC_SUBR = 0x4000,
  PVEC_CHAR_TABLE = 0x8000,
  PVEC_BOOL_VECTOR = 0x10000,
  PVEC_BUFFER = 0x20000,
  PVEC_HASH_TABLE = 0x40000,
  PVEC_TYPE_MASK = 0x7fe00
  
#if 0 /* This is used to make the value of PSEUDOVECTOR_FLAG available to
	 GDB.  It doesn't work on OS Alpha.  Moved to a variable in
	 emacs.c.  */
  PVEC_FLAG = PSEUDOVECTOR_FLAG
#endif
};

/* For convenience, we also store the number of elements in these bits.  */
#define PSEUDOVECTOR_SIZE_MASK 0x1ff

/* These macros extract various sorts of values from a Lisp_Object.
 For example, if tem is a Lisp_Object whose type is Lisp_Cons,
 XCONS (tem) is the struct Lisp_Cons * pointing to the memory for that cons.  */

#ifdef NO_UNION_TYPE

/* One need to override this if there must be high bits set in data space
   (doing the result of the below & ((1 << (GCTYPE + 1)) - 1) would work
    on all machines, but would penalize machines which don't need it)
 */
#ifndef XTYPE
#define XTYPE(a) ((enum Lisp_Type) ((a) >> VALBITS))
#endif

#ifndef XSETTYPE
#define XSETTYPE(a, b) ((a)  =  XUINT (a) | ((EMACS_INT)(b) << VALBITS))
#endif

/* For integers known to be positive, XFASTINT provides fast retrieval
   and XSETFASTINT provides fast storage.  This takes advantage of the
   fact that Lisp_Int is 0.  */
#define XFASTINT(a) ((a) + 0)
#define XSETFASTINT(a, b) ((a) = (b))

/* Extract the value of a Lisp_Object as a signed integer.  */

#ifndef XINT   /* Some machines need to do this differently.  */
#define XINT(a) ((EMACS_INT) (((a) << (BITS_PER_EMACS_INT - VALBITS)) \
			      >> (BITS_PER_EMACS_INT - VALBITS)))
#endif

/* Extract the value as an unsigned integer.  This is a basis
   for extracting it as a pointer to a structure in storage.  */

#ifndef XUINT
#define XUINT(a) ((EMACS_UINT) ((a) & VALMASK))
#endif

#ifndef XPNTR
#ifdef HAVE_SHM
/* In this representation, data is found in two widely separated segments.  */
extern size_t pure_size;
#define XPNTR(a) \
  (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
#else /* not HAVE_SHM */
#ifdef DATA_SEG_BITS
/* This case is used for the rt-pc.
   In the diffs I was given, it checked for ptr = 0
   and did not adjust it in that case.
   But I don't think that zero should ever be found
   in a Lisp object whose data type says it points to something.  */
#define XPNTR(a) (XUINT (a) | DATA_SEG_BITS)
#else
#define XPNTR(a) XUINT (a)
#endif
#endif /* not HAVE_SHM */
#endif /* no XPNTR */

#ifndef XSET
#define XSET(var, type, ptr) \
   ((var) = ((EMACS_INT)(type) << VALBITS) + ((EMACS_INT) (ptr) & VALMASK))
#endif

/* Convert a C integer into a Lisp_Object integer.  */

#define make_number(N)		\
  ((((EMACS_INT) (N)) & VALMASK) | ((EMACS_INT) Lisp_Int) << VALBITS)

/* During garbage collection, XGCTYPE must be used for extracting types
 so that the mark bit is ignored.  XMARKBIT accesses the markbit.
 Markbits are used only in particular slots of particular structure types.
 Other markbits are always zero.
 Outside of garbage collection, all mark bits are always zero.  */

#ifndef XGCTYPE
#define XGCTYPE(a) ((enum Lisp_Type) (((a) >> VALBITS) & GCTYPEMASK))
#endif

#if VALBITS + GCTYPEBITS == BITS_PER_EMACS_INT - 1
/* Make XMARKBIT faster if mark bit is sign bit.  */
#ifndef XMARKBIT
#define XMARKBIT(a) ((a) < 0)
#endif
#endif /* markbit is sign bit */

#ifndef XMARKBIT
#define XMARKBIT(a) ((a) & MARKBIT)
#endif

#ifndef XSETMARKBIT
#define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
#endif

#ifndef XMARK
#define XMARK(a) ((a) |= MARKBIT)
#endif

#ifndef XUNMARK
#define XUNMARK(a) ((a) &= ~MARKBIT)
#endif

#endif /* NO_UNION_TYPE */

#ifndef NO_UNION_TYPE

#define XTYPE(a) ((enum Lisp_Type) (a).u.type)
#define XSETTYPE(a, b) ((a).u.type = (char) (b))

/* For integers known to be positive, XFASTINT provides fast retrieval
   and XSETFASTINT provides fast storage.  This takes advantage of the
   fact that Lisp_Int is 0.  */
#define XFASTINT(a) ((a).i + 0)
#define XSETFASTINT(a, b) ((a).i = (b))

#ifdef EXPLICIT_SIGN_EXTEND
/* Make sure we sign-extend; compilers have been known to fail to do so.  */
#define XINT(a) (((a).i << (BITS_PER_EMACS_INT - VALBITS)) \
		 >> (BITS_PER_EMACS_INT - VALBITS))
#else
#define XINT(a) ((a).s.val)
#endif /* EXPLICIT_SIGN_EXTEND */

#define XUINT(a) ((a).u.val)
#define XPNTR(a) ((a).u.val)

#define XSET(var, vartype, ptr) \
   (((var).s.val = ((EMACS_INT) (ptr))), ((var).s.type = ((char) (vartype))))

#if __GNUC__ >= 2 && defined (__OPTIMIZE__)
#define make_number(N) \
  (__extension__ ({ Lisp_Object _l; _l.s.val = (N); _l.s.type = Lisp_Int; _l; }))
#else
extern Lisp_Object make_number ();
#endif

/* During garbage collection, XGCTYPE must be used for extracting types
 so that the mark bit is ignored.  XMARKBIT access the markbit.
 Markbits are used only in particular slots of particular structure types.
 Other markbits are always zero.
 Outside of garbage collection, all mark bits are always zero.  */

#define XGCTYPE(a) ((a).gu.type)
#define XMARKBIT(a) ((a).gu.markbit)
#define XSETMARKBIT(a,b) (XMARKBIT(a) = (b))
#define XMARK(a) (XMARKBIT(a) = 1)
#define XUNMARK(a) (XMARKBIT(a) = 0)

#endif /* NO_UNION_TYPE */

/* Largest and smallest representable fixnum values.  These are the C
   values.  */

#define MOST_NEGATIVE_FIXNUM	- ((EMACS_INT) 1 << (VALBITS - 1))
#define MOST_POSITIVE_FIXNUM	(((EMACS_INT) 1 << (VALBITS - 1)) - 1)

/* Value is non-zero if C integer I doesn't fit into a Lisp fixnum.  */

#define FIXNUM_OVERFLOW_P(i) \
  ((EMACS_INT)(i) > MOST_POSITIVE_FIXNUM \
   || (EMACS_INT) (i) < MOST_NEGATIVE_FIXNUM)

/* Extract a value or address from a Lisp_Object.  */

#define XCONS(a) (eassert (GC_CONSP(a)),(struct Lisp_Cons *) XPNTR(a))
#define XVECTOR(a) (eassert (GC_VECTORLIKEP(a)),(struct Lisp_Vector *) XPNTR(a))
#define XSTRING(a) (eassert (GC_STRINGP(a)),(struct Lisp_String *) XPNTR(a))
#define XSYMBOL(a) (eassert (GC_SYMBOLP(a)),(struct Lisp_Symbol *) XPNTR(a))
#define XFLOAT(a) (eassert (GC_FLOATP(a)),(struct Lisp_Float *) XPNTR(a))

/* Misc types.  */

#define XMISC(a)   ((union Lisp_Misc *) XPNTR(a))
#define XMISCTYPE(a)   (XMARKER (a)->type)
#define XMARKER(a) (&(XMISC(a)->u_marker))
#define XINTFWD(a) (&(XMISC(a)->u_intfwd))
#define XBOOLFWD(a) (&(XMISC(a)->u_boolfwd))
#define XOBJFWD(a) (&(XMISC(a)->u_objfwd))
#define XBUFFER_OBJFWD(a) (&(XMISC(a)->u_buffer_objfwd))
#define XBUFFER_LOCAL_VALUE(a) (&(XMISC(a)->u_buffer_local_value))
#define XOVERLAY(a) (&(XMISC(a)->u_overlay))
#define XKBOARD_OBJFWD(a) (&(XMISC(a)->u_kboard_objfwd))

/* Pseudovector types.  */

#define XPROCESS(a) (eassert (GC_PROCESSP(a)),(struct Lisp_Process *) XPNTR(a))
#define XWINDOW(a) (eassert (GC_WINDOWP(a)),(struct window *) XPNTR(a))
#define XSUBR(a) (eassert (GC_SUBRP(a)),(struct Lisp_Subr *) XPNTR(a))
#define XBUFFER(a) (eassert (GC_BUFFERP(a)),(struct buffer *) XPNTR(a))
#define XCHAR_TABLE(a) ((struct Lisp_Char_Table *) XPNTR(a))
#define XBOOL_VECTOR(a) ((struct Lisp_Bool_Vector *) XPNTR(a))

/* Construct a Lisp_Object from a value or address.  */

#define XSETINT(a, b) XSET (a, Lisp_Int, b)
#define XSETCONS(a, b) XSET (a, Lisp_Cons, b)
#define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b)
#define XSETSTRING(a, b) XSET (a, Lisp_String, b)
#define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b)
#define XSETFLOAT(a, b) XSET (a, Lisp_Float, b)

/* Misc types.  */

#define XSETMISC(a, b) XSET (a, Lisp_Misc, b)
#define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker)

/* Pseudovector types.  */

#define XSETPSEUDOVECTOR(a, b, code) \
  (XSETVECTOR (a, b), XVECTOR (a)->size |= PSEUDOVECTOR_FLAG | (code))
#define XSETWINDOW_CONFIGURATION(a, b) \
  (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW_CONFIGURATION))
#define XSETPROCESS(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_PROCESS))
#define XSETWINDOW(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_WINDOW))
#define XSETSUBR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_SUBR))
#define XSETCOMPILED(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_COMPILED))
#define XSETBUFFER(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BUFFER))
#define XSETCHAR_TABLE(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_CHAR_TABLE))
#define XSETBOOL_VECTOR(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_BOOL_VECTOR))

/* Convenience macros for dealing with Lisp arrays.  */

#define AREF(ARRAY, IDX)	XVECTOR ((ARRAY))->contents[IDX]
#define ASET(ARRAY, IDX, VAL)	(AREF ((ARRAY), (IDX)) = (VAL))
#define ASIZE(ARRAY)		XVECTOR ((ARRAY))->size


/* Basic data type for use of intervals.  See the macros in intervals.h.  */

struct interval
{
  /* The first group of entries deal with the tree structure.  */

  unsigned int total_length;	/* Length of myself and both children.  */
  unsigned int position;	/* Cache of interval's character position.  */
				/* This field is usually updated
				   simultaneously with an interval
				   traversal, there is no guarantee
				   that it is valid for a random
				   interval.  */
  struct interval *left;	/* Intervals which precede me.  */
  struct interval *right;	/* Intervals which succeed me.  */

  /* Parent in the tree, or the Lisp_Object containing this interval tree.

     The mark bit on the root interval of an interval tree says
     whether we have started (and possibly finished) marking the
     tree.  If GC comes across an interval tree whose root's parent
     field has its markbit set, it leaves the tree alone.

     You'd think we could store this information in the parent object
     somewhere (after all, that should be visited once and then
     ignored too, right?), but strings are GC'd strangely.  */
  union
  {
    struct interval *interval;
    Lisp_Object obj;
  } up;
  unsigned int up_obj : 1;

  /* The remaining components are `properties' of the interval.
     The first four are duplicates for things which can be on the list,
     for purposes of speed.  */

  unsigned int write_protect : 1;    /* Non-zero means can't modify.  */
  unsigned int visible : 1;	    /* Zero means don't display.  */
  unsigned int front_sticky : 1;    /* Non-zero means text inserted just
				       before this interval goes into it.  */
  unsigned int rear_sticky : 1;	    /* Likewise for just after it.  */

  /* Properties of this interval.
     The mark bit on this field says whether this particular interval
     tree node has been visited.  Since intervals should never be
     shared, GC aborts if it seems to have visited an interval twice.  */
  Lisp_Object plist;
};

typedef struct interval *INTERVAL;

/* Complain if object is not string or buffer type */
#define CHECK_STRING_OR_BUFFER(x) \
  { if (!STRINGP ((x)) && !BUFFERP ((x))) \
      x = wrong_type_argument (Qbuffer_or_string_p, (x)); }

/* In a cons, the markbit of the car is the gc mark bit */

struct Lisp_Cons
  {
    /* Please do not use the names of these elements in code other
       than the core lisp implementation.  Use XCAR and XCDR below.  */
#ifdef HIDE_LISP_IMPLEMENTATION
    Lisp_Object car_, cdr_;
#else
    Lisp_Object car, cdr;
#endif
  };

/* Take the car or cdr of something known to be a cons cell.  */
/* The _AS_LVALUE macros shouldn't be used outside of the minimal set
   of code that has to know what a cons cell looks like.  Other code not
   part of the basic lisp implementation should assume that the car and cdr
   fields are not accessible as lvalues.  (What if we want to switch to
   a copying collector someday?  Cached cons cell field addresses may be
   invalidated at arbitrary points.)  */
#ifdef HIDE_LISP_IMPLEMENTATION
#define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr_)
#else
#define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
#define XCDR_AS_LVALUE(c) (XCONS ((c))->cdr)
#endif

/* Okay, we're not quite ready to turn this on yet.  A few files still
   need to be updated and tested.  */
#undef LISP_MAKE_RVALUE
#define LISP_MAKE_RVALUE(x) (x)

/* Use these from normal code.  */
#define XCAR(c)	LISP_MAKE_RVALUE(XCAR_AS_LVALUE(c))
#define XCDR(c) LISP_MAKE_RVALUE(XCDR_AS_LVALUE(c))

/* Use these to set the fields of a cons cell.

   Note that both arguments may refer to the same object, so 'n'
   should not be read after 'c' is first modified.  Also, neither
   argument should be evaluated more than once; side effects are
   especially common in the second argument.  */
#define XSETCAR(c,n) (XCAR_AS_LVALUE(c) = (n))
#define XSETCDR(c,n) (XCDR_AS_LVALUE(c) = (n))

/* For performance: Fast storage of positive integers into the
   fields of a cons cell.  See above caveats.  */
#define XSETCARFASTINT(c,n)  XSETFASTINT(XCAR_AS_LVALUE(c),(n))
#define XSETCDRFASTINT(c,n)  XSETFASTINT(XCDR_AS_LVALUE(c),(n))

/* Take the car or cdr of something whose type is not known.  */
#define CAR(c)					\
 (CONSP ((c)) ? XCAR ((c))			\
  : NILP ((c)) ? Qnil				\
  : wrong_type_argument (Qlistp, (c)))

#define CDR(c)					\
 (CONSP ((c)) ? XCDR ((c))			\
  : NILP ((c)) ? Qnil				\
  : wrong_type_argument (Qlistp, (c)))

/* Nonzero if STR is a multibyte string.  */
#define STRING_MULTIBYTE(STR)  \
  (XSTRING (STR)->size_byte >= 0)

/* Return the length in bytes of STR.  */

#ifdef GC_CHECK_STRING_BYTES

struct Lisp_String;
extern int string_bytes P_ ((struct Lisp_String *));
#define STRING_BYTES(S) string_bytes ((S))

#else /* not GC_CHECK_STRING_BYTES */

#define STRING_BYTES(STR)  \
  ((STR)->size_byte < 0 ? (STR)->size : (STR)->size_byte)

#endif /* not GC_CHECK_STRING_BYTES */

/* Set the length in bytes of STR.  */
#define SET_STRING_BYTES(STR, SIZE)  ((STR)->size_byte = (SIZE))

/* In a string or vector, the sign bit of the `size' is the gc mark bit */

struct Lisp_String
  {
    EMACS_INT size;
    EMACS_INT size_byte;
    INTERVAL intervals;		/* text properties in this string */
    unsigned char *data;
  };

/* If a struct is made to look like a vector, this macro returns the length
   of the shortest vector that would hold that struct.  */
#define VECSIZE(type) ((sizeof (type) - (sizeof (struct Lisp_Vector)  \
                                         - sizeof (Lisp_Object))      \
                        + sizeof(Lisp_Object) - 1) /* round up */     \
		       / sizeof (Lisp_Object))

struct Lisp_Vector
  {
    EMACS_INT size;
    struct Lisp_Vector *next;
    Lisp_Object contents[1];
  };

/* A char table is a kind of vectorlike, with contents are like a
   vector but with a few other slots.  For some purposes, it makes
   sense to handle a chartable with type struct Lisp_Vector.  An
   element of a char table can be any Lisp objects, but if it is a sub
   char-table, we treat it a table that contains information of a
   group of characters of the same charsets or a specific character of
   a charset.  A sub char-table has the same structure as a char table
   except for that the former omits several slots at the tail.  A sub
   char table appears only in an element of a char table, and there's
   no way to access it directly from Emacs Lisp program.  */

/* This is the number of slots that apply to characters or character
   sets.  The first 128 are for ASCII, the next 128 are for 8-bit
   European characters, and the last 128 are for multibyte characters.
   The first 256 are indexed by the code itself, but the last 128 are
   indexed by (charset-id + 128).  */
#define CHAR_TABLE_ORDINARY_SLOTS 384

/* This is the number of slots that apply to characters of ASCII and
   8-bit Europeans only.  */
#define CHAR_TABLE_SINGLE_BYTE_SLOTS 256

/* This is the number of slots that every char table must have.  This
   counts the ordinary slots and the top, defalt, parent, and purpose
   slots.  */
#define CHAR_TABLE_STANDARD_SLOTS (CHAR_TABLE_ORDINARY_SLOTS + 4)

/* This is the number of slots that apply to position-code-1 and
   position-code-2 of a multibyte character at the 2nd and 3rd level
   sub char tables respectively.  */
#define SUB_CHAR_TABLE_ORDINARY_SLOTS 128

/* This is the number of slots that every sub char table must have.
   This counts the ordinary slots and the top and defalt slot.  */
#define SUB_CHAR_TABLE_STANDARD_SLOTS (SUB_CHAR_TABLE_ORDINARY_SLOTS + 2)

/* Return the number of "extra" slots in the char table CT.  */

#define CHAR_TABLE_EXTRA_SLOTS(CT)	\
  (((CT)->size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)

/* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
   and 8-bit Europeans characters.  For these characters, do not check
   validity of CT.  Do not follow parent.  */
#define CHAR_TABLE_REF(CT, IDX)				\
  ((IDX) >= 0 && (IDX) < CHAR_TABLE_SINGLE_BYTE_SLOTS	\
   ? (!NILP (XCHAR_TABLE (CT)->contents[IDX])		\
      ? XCHAR_TABLE (CT)->contents[IDX]			\
      : XCHAR_TABLE (CT)->defalt)			\
   : Faref (CT, make_number (IDX)))

/* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
   and 8-bit Europeans characters.  However, if the result is nil,
   return IDX.

   For these characters, do not check validity of CT
   and do not follow parent.  */
#define CHAR_TABLE_TRANSLATE(CT, IDX)			\
  ((IDX) < CHAR_TABLE_SINGLE_BYTE_SLOTS			\
   ? (!NILP (XCHAR_TABLE (CT)->contents[IDX])		\
      ? XINT (XCHAR_TABLE (CT)->contents[IDX])		\
      : IDX)						\
   : char_table_translate (CT, IDX))

/* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
   8-bit Europeans characters.  Do not check validity of CT.  */
#define CHAR_TABLE_SET(CT, IDX, VAL)			\
  do {							\
    if (XFASTINT (IDX) < CHAR_TABLE_SINGLE_BYTE_SLOTS)	\
      XCHAR_TABLE (CT)->contents[XFASTINT (IDX)] = VAL;	\
    else						\
      Faset (CT, IDX, VAL);				\
  } while (0)

struct Lisp_Char_Table
  {
    /* This is the vector's size field, which also holds the
       pseudovector type information.  It holds the size, too.
       The size counts the top, defalt, purpose, and parent slots.
       The last three are not counted if this is a sub char table.  */
    EMACS_INT size;
    struct Lisp_Vector *next;
    /* This holds a flag to tell if this is a top level char table (t)
       or a sub char table (nil).  */
    Lisp_Object top;
    /* This holds a default value,
       which is used whenever the value for a specific character is nil.  */
    Lisp_Object defalt;
    /* This holds an actual value of each element.  A sub char table
       has only SUB_CHAR_TABLE_ORDINARY_SLOTS number of elements.  */
    Lisp_Object contents[CHAR_TABLE_ORDINARY_SLOTS];

    /* A sub char table doesn't has the following slots.  */

    /* This points to another char table, which we inherit from
       when the value for a specific character is nil.
       The `defalt' slot takes precedence over this.  */
    Lisp_Object parent;
    /* This should be a symbol which says what kind of use
       this char-table is meant for.
       Typically now the values can be `syntax-table' and `display-table'.  */
    Lisp_Object purpose;
    /* These hold additional data.  */
    Lisp_Object extras[1];
  };

/* A boolvector is a kind of vectorlike, with contents are like a string.  */
struct Lisp_Bool_Vector
  {
    /* This is the vector's size field.  It doesn't have the real size,
       just the subtype information.  */
    EMACS_INT vector_size;
    struct Lisp_Vector *next;
    /* This is the size in bits.  */
    EMACS_INT size;
    /* This contains the actual bits, packed into bytes.  */
    unsigned char data[1];
  };

/* This structure describes a built-in function.
   It is generated by the DEFUN macro only.
   defsubr makes it into a Lisp object.

   This type is treated in most respects as a pseudovector,
   but since we never dynamically allocate or free them,
   we don't need a next-vector field.  */

struct Lisp_Subr
  {
    EMACS_INT size;
    Lisp_Object (*function) ();
    short min_args, max_args;
    char *symbol_name;
    char *prompt;
    char *doc;
  };


/***********************************************************************
			       Symbols
 ***********************************************************************/

/* Interned state of a symbol.  */

enum symbol_interned
{
  SYMBOL_UNINTERNED = 0,
  SYMBOL_INTERNED = 1,
  SYMBOL_INTERNED_IN_INITIAL_OBARRAY = 2
};

/* In a symbol, the markbit of the plist is used as the gc mark bit */

struct Lisp_Symbol
{
  /* Non-zero means symbol serves as a variable alias.  The symbol
     holding the real value is found in the value slot.  */
  unsigned indirect_variable : 1;

  /* Non-zero means symbol is constant, i.e. changing its value
     should signal an error.  */
  unsigned constant : 1;

  /* Interned state of the symbol.  This is an enumerator from
     enum symbol_interned.  */
  unsigned interned : 2;

  /* The symbol's name.  This should become a Lisp_Object
     some day; there's no need for the Lisp_String pointer nowadays.  */
  struct Lisp_String *name;

  /* Value of the symbol or Qunbound if unbound.  If this symbol is a
     defvaralias, `value' contains the symbol for which it is an
     alias.  Use the SYMBOL_VALUE and SET_SYMBOL_VALUE macros to get
     and set a symbol's value, to take defvaralias into account.  */
  Lisp_Object value;

  /* Function value of the symbol or Qunbound if not fcoundp.  */
  Lisp_Object function;

  /* The symbol's property list.  */
  Lisp_Object plist;
    
  /* Next symbol in obarray bucket, if the symbol is interned.  */
  struct Lisp_Symbol *next;
};

/* Value is non-zero if SYM is an interned symbol.  */

#define SYMBOL_INTERNED_P(sym)  \
     (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)

/* Value is non-zero if SYM is interned in initial_obarray.  */

#define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
     (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)

/* Value is non-zero if symbol is considered a constant, i.e. its
   value cannot be changed (there is an exception for keyword symbols,
   whose value can be set to the keyword symbol itself).  */

#define SYMBOL_CONSTANT_P(sym)   XSYMBOL (sym)->constant

/* Value is the value of SYM, with defvaralias taken into
   account.  */

#define SYMBOL_VALUE(sym)			\
   (XSYMBOL (sym)->indirect_variable		\
    ? XSYMBOL (indirect_variable (sym))->value	\
    : XSYMBOL (sym)->value)

/* Set SYM's value to VAL, taking defvaralias into account.  */

#define SET_SYMBOL_VALUE(sym, val)				\
     do {							\
       if (XSYMBOL (sym)->indirect_variable)			\
	 XSYMBOL (indirect_variable ((sym)))->value = (val);	\
       else							\
	 XSYMBOL (sym)->value = (val);				\
     } while (0)
     

/***********************************************************************
			     Hash Tables
 ***********************************************************************/

/* The structure of a Lisp hash table.  */

struct Lisp_Hash_Table
{
  /* Vector fields.  The hash table code doesn't refer to these.  */
  EMACS_INT size;
  struct Lisp_Vector *vec_next;
  
  /* Function used to compare keys.  */
  Lisp_Object test;

  /* Nil if table is non-weak.  Otherwise a symbol describing the
     weakness of the table.  */
  Lisp_Object weak;
  
  /* When the table is resized, and this is an integer, compute the
     new size by adding this to the old size.  If a float, compute the
     new size by multiplying the old size with this factor.  */
  Lisp_Object rehash_size;

  /* Resize hash table when number of entries/ table size is >= this
     ratio, a float.  */
  Lisp_Object rehash_threshold;

  /* Number of key/value entries in the table.  */
  Lisp_Object count;

  /* Vector of keys and values.  The key of item I is found at index
     2 * I, the value is found at index 2 * I + 1.  */
  Lisp_Object key_and_value;

  /* Vector of hash codes.. If hash[I] is nil, this means that that
     entry I is unused.  */
  Lisp_Object hash;

  /* Vector used to chain entries.  If entry I is free, next[I] is the
     entry number of the next free item.  If entry I is non-free,
     next[I] is the index of the next entry in the collision chain.  */
  Lisp_Object next;

  /* Index of first free entry in free list.  */
  Lisp_Object next_free;

  /* Bucket vector.  A non-nil entry is the index of the first item in
     a collision chain.  This vector's size can be larger than the
     hash table size to reduce collisions.  */
  Lisp_Object index;

  /* Next weak hash table if this is a weak hash table.  The head
     of the list is in Vweak_hash_tables.  */
  Lisp_Object next_weak;

  /* User-supplied hash function, or nil.  */
  Lisp_Object user_hash_function;

  /* User-supplied key comparison function, or nil.  */
  Lisp_Object user_cmp_function;

  /* C function to compare two keys.  */
  int (* cmpfn) P_ ((struct Lisp_Hash_Table *, Lisp_Object,
		     unsigned, Lisp_Object, unsigned));

  /* C function to compute hash code.  */
  unsigned (* hashfn) P_ ((struct Lisp_Hash_Table *, Lisp_Object));
};


#define XHASH_TABLE(OBJ) \
     ((struct Lisp_Hash_Table *) XPNTR (OBJ))

#define XSET_HASH_TABLE(VAR, PTR) \
     (XSETPSEUDOVECTOR (VAR, PTR, PVEC_HASH_TABLE))

#define HASH_TABLE_P(OBJ)  PSEUDOVECTORP (OBJ, PVEC_HASH_TABLE)
#define GC_HASH_TABLE_P(x) GC_PSEUDOVECTORP (x, PVEC_HASH_TABLE)

#define CHECK_HASH_TABLE(x)					\
     do								\
       {							\
	 if (!HASH_TABLE_P ((x)))				\
	   x = wrong_type_argument (Qhash_table_p, (x));	\
       }							\
     while (0)

/* Default size for hash tables if not specified.  */

#define DEFAULT_HASH_SIZE 65

/* Default threshold specifying when to resize a hash table.  The
   value gives the ratio of current entries in the hash table and the
   size of the hash table.  */

#define DEFAULT_REHASH_THRESHOLD 0.8

/* Default factor by which to increase the size of a hash table.  */

#define DEFAULT_REHASH_SIZE 1.5


/* These structures are used for various misc types.  */

/* A miscellaneous object, when it's on the free list.  */
struct Lisp_Free
  {
    int type : 16;	/* = Lisp_Misc_Free */
    int spacer : 16;
    union Lisp_Misc *chain;
  };

/* In a marker, the markbit of the chain field is used as the gc mark bit.  */
struct Lisp_Marker
{
  int type : 16;		/* = Lisp_Misc_Marker */
  int spacer : 15;
  /* 1 means normal insertion at the marker's position
     leaves the marker after the inserted text.  */
  unsigned int insertion_type : 1;
  /* This is the buffer that the marker points into,
     or 0 if it points nowhere.  */
  struct buffer *buffer;

  /* The remaining fields are meaningless in a marker that
     does not point anywhere.  */

  /* For markers that point somewhere,
     this is used to chain of all the markers in a given buffer.  */
  Lisp_Object chain;
  /* This is the char position where the marker points.  */
  int charpos;
  /* This is the byte position.  */
  int bytepos;
};

/* Forwarding pointer to an int variable.
   This is allowed only in the value cell of a symbol,
   and it means that the symbol's value really lives in the
   specified int variable.  */
struct Lisp_Intfwd
  {
    int type : 16;	/* = Lisp_Misc_Intfwd */
    int spacer : 16;
    int *intvar;
  };

/* Boolean forwarding pointer to an int variable.
   This is like Lisp_Intfwd except that the ostensible
   "value" of the symbol is t if the int variable is nonzero,
   nil if it is zero.  */
struct Lisp_Boolfwd
  {
    int type : 16;	/* = Lisp_Misc_Boolfwd */
    int spacer : 16;
    int *boolvar;
  };

/* Forwarding pointer to a Lisp_Object variable.
   This is allowed only in the value cell of a symbol,
   and it means that the symbol's value really lives in the
   specified variable.  */
struct Lisp_Objfwd
  {
    int type : 16;	/* = Lisp_Misc_Objfwd */
    int spacer : 16;
    Lisp_Object *objvar;
  };

/* Like Lisp_Objfwd except that value lives in a slot in the
   current buffer.  Value is byte index of slot within buffer.  */
struct Lisp_Buffer_Objfwd
  {
    int type : 16;	/* = Lisp_Misc_Buffer_Objfwd */
    int spacer : 16;
    int offset;
  };

/* struct Lisp_Buffer_Local_Value is used in a symbol value cell when
   the symbol has buffer-local or frame-local bindings.  (Exception:
   some buffer-local variables are built-in, with their values stored
   in the buffer structure itself.  They are handled differently,
   using struct Lisp_Buffer_Objfwd.)

   The `realvalue' slot holds the variable's current value, or a
   forwarding pointer to where that value is kept.  This value is the
   one that corresponds to the loaded binding.  To read or set the
   variable, you must first make sure the right binding is loaded;
   then you can access the value in (or through) `realvalue'.
   
   `buffer' and `frame' are the buffer and frame for which the loaded
   binding was found.  If those have changed, to make sure the right
   binding is loaded it is necessary to find which binding goes with
   the current buffer and selected frame, then load it.  To load it,
   first unload the previous binding, then copy the value of the new
   binding into `realvalue' (or through it).  Also update
   LOADED-BINDING to point to the newly loaded binding.

   Lisp_Misc_Buffer_Local_Value and Lisp_Misc_Some_Buffer_Local_Value
   both use this kind of structure.  With the former, merely setting
   the variable creates a local binding for the current buffer.  With
   the latter, setting the variable does not do that; only
   make-local-variable does that.  */

struct Lisp_Buffer_Local_Value
  {
    int type : 16;      /* = Lisp_Misc_Buffer_Local_Value
			   or Lisp_Misc_Some_Buffer_Local_Value */
    int spacer : 13;

    /* 1 means this variable is allowed to have frame-local bindings,
       so check for them when looking for the proper binding.  */
    unsigned int check_frame : 1;
    /* 1 means that the binding now loaded was found
       as a local binding for the buffer in the `buffer' slot.  */
    unsigned int found_for_buffer : 1;
    /* 1 means that the binding now loaded was found
       as a local binding for the frame in the `frame' slot.  */
    unsigned int found_for_frame : 1;
    Lisp_Object realvalue;
    /* The buffer and frame for which the loaded binding was found.  */
    Lisp_Object buffer, frame;

    /* A cons cell, (LOADED-BINDING . DEFAULT-VALUE).

       LOADED-BINDING is the binding now loaded.  It is a cons cell
       whose cdr is the binding's value.  The cons cell may be an
       element of a buffer's local-variable alist, or an element of a
       frame's parameter alist, or it may be this cons cell.

       DEFAULT-VALUE is the variable's default value, seen when the
       current buffer and selected frame do not have their own
       bindings for the variable.  When the default binding is loaded,
       LOADED-BINDING is actually this very cons cell; thus, its car
       points to itself.  */
    Lisp_Object cdr;
  };

/* In an overlay object, the mark bit of the plist is used as the GC mark.
   START and END are markers in the overlay's buffer, and
   PLIST is the overlay's property list.  */
struct Lisp_Overlay
  {
    int type : 16;	/* = Lisp_Misc_Overlay */
    int spacer : 16;
    Lisp_Object start, end, plist;
  };

/* Like Lisp_Objfwd except that value lives in a slot in the
   current kboard.  */
struct Lisp_Kboard_Objfwd
  {
    int type : 16;	/* = Lisp_Misc_Kboard_Objfwd */
    int spacer : 16;
    int offset;
  };


/* To get the type field of a union Lisp_Misc, use XMISCTYPE.
   It uses one of these struct subtypes to get the type field.  */

union Lisp_Misc
  {
    struct Lisp_Free u_free;
    struct Lisp_Marker u_marker;
    struct Lisp_Intfwd u_intfwd;
    struct Lisp_Boolfwd u_boolfwd;
    struct Lisp_Objfwd u_objfwd;
    struct Lisp_Buffer_Objfwd u_buffer_objfwd;
    struct Lisp_Buffer_Local_Value u_buffer_local_value;
    struct Lisp_Overlay u_overlay;
    struct Lisp_Kboard_Objfwd u_kboard_objfwd;
  };

/* Lisp floating point type */
struct Lisp_Float
  {
    Lisp_Object type;		/* essentially used for mark-bit
				   and chaining when on free-list */
#ifdef HIDE_LISP_IMPLEMENTATION
    double data_;
#else
    double data;
#endif
  };

#ifdef HIDE_LISP_IMPLEMENTATION
#define XFLOAT_DATA(f)	(XFLOAT (f)->data_)
#else
#define XFLOAT_DATA(f)	(XFLOAT (f)->data)
#endif

/* A character, declared with the following typedef, is a member
   of some character set associated with the current buffer.  */
#ifndef _UCHAR_T  /* Protect against something in ctab.h on AIX.  */
#define _UCHAR_T
typedef unsigned char UCHAR;
#endif

/* Meanings of slots in a Lisp_Compiled:  */

#define COMPILED_ARGLIST 0
#define COMPILED_BYTECODE 1
#define COMPILED_CONSTANTS 2
#define COMPILED_STACK_DEPTH 3
#define COMPILED_DOC_STRING 4
#define COMPILED_INTERACTIVE 5

/* Flag bits in a character.  These also get used in termhooks.h.
   Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
   (MUlti-Lingual Emacs) might need 22 bits for the character value
   itself, so we probably shouldn't use any bits lower than 0x0400000.  */
#define CHAR_ALT   (0x0400000)
#define CHAR_SUPER (0x0800000)
#define CHAR_HYPER (0x1000000)
#define CHAR_SHIFT (0x2000000)
#define CHAR_CTL   (0x4000000)
#define CHAR_META  (0x8000000)

#define CHAR_MODIFIER_MASK \
  (CHAR_ALT | CHAR_SUPER | CHAR_HYPER  | CHAR_SHIFT | CHAR_CTL | CHAR_META)


/* Actually, the current Emacs uses 19 bits for the character value
   itself.  */
#define CHARACTERBITS 19

/* The maximum byte size consumed by push_key_description.
   All callers should assure that at least this size of memory is
   allocated at the place pointed by the second argument.

   Thers are 6 modifiers, each consumes 2 chars.
   The octal form of a character code consumes
   (1 + CHARACTERBITS / 3 + 1) chars (including backslash at the head).
   We need one more byte for string terminator `\0'.  */
#define KEY_DESCRIPTION_SIZE ((2 * 6) + 1 + (CHARACTERBITS / 3) + 1 + 1)

#ifdef USE_X_TOOLKIT
#ifdef NO_UNION_TYPE
/* Use this for turning a (void *) into a Lisp_Object, as when the
   Lisp_Object is passed into a toolkit callback function.  */
#define VOID_TO_LISP(larg,varg) \
  do { ((larg) = ((Lisp_Object) (varg))); } while (0)
#define CVOID_TO_LISP VOID_TO_LISP

/* Use this for turning a Lisp_Object into a  (void *), as when the
   Lisp_Object is passed into a toolkit callback function.  */
#define LISP_TO_VOID(larg) ((void *) (larg))
#define LISP_TO_CVOID(varg) ((const void *) (larg))

#else /* not NO_UNION_TYPE */
/* Use this for turning a (void *) into a Lisp_Object, as when the
  Lisp_Object is passed into a toolkit callback function.  */
#define VOID_TO_LISP(larg,varg) \
  do { ((larg).v = (void *) (varg)); } while (0)
#define CVOID_TO_LISP(larg,varg) \
  do { ((larg).cv = (const void *) (varg)); } while (0)

/* Use this for turning a Lisp_Object into a  (void *), as when the
   Lisp_Object is passed into a toolkit callback function.  */
#define LISP_TO_VOID(larg) ((larg).v)
#define LISP_TO_CVOID(larg) ((larg).cv)
#endif /* not NO_UNION_TYPE */
#endif /* USE_X_TOOLKIT */


/* The glyph datatype, used to represent characters on the display.  */

/* Glyph code to use as an index to the glyph table.  If it is out of
   range for the glyph table, or the corresonding element in the table
   is nil, the low 8 bits are the single byte character code, and the
   bits above are the numeric face ID.  If FID is the face ID of a
   glyph on a frame F, then F->display.x->faces[FID] contains the
   description of that face.  This is an int instead of a short, so we
   can support a good bunch of face ID's (2^(31 - 8)); given that we
   have no mechanism for tossing unused frame face ID's yet, we'll
   probably run out of 255 pretty quickly.
   This is always -1 for a multibyte character.  */
#define GLYPH int

/* Mask bits for face.  */
#define GLYPH_MASK_FACE    0x7FF80000
 /* Mask bits for character code.  */
#define GLYPH_MASK_CHAR    0x0007FFFF /* The lowest 19 bits */

/* The FAST macros assume that we already know we're in an X window.  */

/* Set a character code and a face ID in a glyph G.  */
#define FAST_MAKE_GLYPH(char, face) ((char) | ((face) << CHARACTERBITS))

/* Return a glyph's character code.  */
#define FAST_GLYPH_CHAR(glyph) ((glyph) & GLYPH_MASK_CHAR)

/* Return a glyph's face ID.  */
#define FAST_GLYPH_FACE(glyph) (((glyph) & GLYPH_MASK_FACE) >> CHARACTERBITS)

/* Slower versions that test the frame type first.  */
#define MAKE_GLYPH(f, char, face) (FAST_MAKE_GLYPH (char, face))
#define GLYPH_CHAR(f, g) (FAST_GLYPH_CHAR (g))
#define GLYPH_FACE(f, g) (FAST_GLYPH_FACE (g))

/* Return 1 iff GLYPH contains valid character code.  */
#define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (FAST_GLYPH_CHAR (glyph), 1)

/* The ID of the mode line highlighting face.  */
#define GLYPH_MODE_LINE_FACE 1

/* Data type checking */

#define NILP(x)  (XFASTINT (x) == XFASTINT (Qnil))
#define GC_NILP(x) GC_EQ (x, Qnil)

#define NUMBERP(x) (INTEGERP (x) || FLOATP (x))
#define GC_NUMBERP(x) (GC_INTEGERP (x) || GC_FLOATP (x))
#define NATNUMP(x) (INTEGERP (x) && XINT (x) >= 0)
#define GC_NATNUMP(x) (GC_INTEGERP (x) && XINT (x) >= 0)

#define INTEGERP(x) (XTYPE ((x)) == Lisp_Int)
#define GC_INTEGERP(x) (XGCTYPE ((x)) == Lisp_Int)
#define SYMBOLP(x) (XTYPE ((x)) == Lisp_Symbol)
#define GC_SYMBOLP(x) (XGCTYPE ((x)) == Lisp_Symbol)
#define MISCP(x) (XTYPE ((x)) == Lisp_Misc)
#define GC_MISCP(x) (XGCTYPE ((x)) == Lisp_Misc)
#define VECTORLIKEP(x) (XTYPE ((x)) == Lisp_Vectorlike)
#define GC_VECTORLIKEP(x) (XGCTYPE ((x)) == Lisp_Vectorlike)
#define STRINGP(x) (XTYPE ((x)) == Lisp_String)
#define GC_STRINGP(x) (XGCTYPE ((x)) == Lisp_String)
#define CONSP(x) (XTYPE ((x)) == Lisp_Cons)
#define GC_CONSP(x) (XGCTYPE ((x)) == Lisp_Cons)

#define FLOATP(x) (XTYPE ((x)) == Lisp_Float)
#define GC_FLOATP(x) (XGCTYPE ((x)) == Lisp_Float)
#define VECTORP(x) (VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
#define GC_VECTORP(x) (GC_VECTORLIKEP (x) && !(XVECTOR (x)->size & PSEUDOVECTOR_FLAG))
#define OVERLAYP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
#define GC_OVERLAYP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Overlay)
#define MARKERP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
#define GC_MARKERP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Marker)
#define INTFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Intfwd)
#define GC_INTFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Intfwd)
#define BOOLFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Boolfwd)
#define GC_BOOLFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Boolfwd)
#define OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Objfwd)
#define GC_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Objfwd)
#define BUFFER_OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Objfwd)
#define GC_BUFFER_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Objfwd)
#define BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Local_Value)
#define GC_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Buffer_Local_Value)
#define SOME_BUFFER_LOCAL_VALUEP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Some_Buffer_Local_Value)
#define GC_SOME_BUFFER_LOCAL_VALUEP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Some_Buffer_Local_Value)
#define KBOARD_OBJFWDP(x) (MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Kboard_Objfwd)
#define GC_KBOARD_OBJFWDP(x) (GC_MISCP (x) && XMISCTYPE (x) == Lisp_Misc_Kboard_Objfwd)


/* True if object X is a pseudovector whose code is CODE.  */
#define PSEUDOVECTORP(x, code)					\
  (VECTORLIKEP (x)						\
   && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code))))	\
       == (PSEUDOVECTOR_FLAG | (code))))

/* True if object X is a pseudovector whose code is CODE.
   This one works during GC.  */
#define GC_PSEUDOVECTORP(x, code)				\
  (GC_VECTORLIKEP (x)						\
   && (((XVECTOR (x)->size & (PSEUDOVECTOR_FLAG | (code))))	\
       == (PSEUDOVECTOR_FLAG | (code))))

/* Test for specific pseudovector types.  */
#define WINDOW_CONFIGURATIONP(x) PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
#define GC_WINDOW_CONFIGURATIONP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW_CONFIGURATION)
#define PROCESSP(x) PSEUDOVECTORP (x, PVEC_PROCESS)
#define GC_PROCESSP(x) GC_PSEUDOVECTORP (x, PVEC_PROCESS)
#define WINDOWP(x) PSEUDOVECTORP (x, PVEC_WINDOW)
#define GC_WINDOWP(x) GC_PSEUDOVECTORP (x, PVEC_WINDOW)
#define SUBRP(x) PSEUDOVECTORP (x, PVEC_SUBR)
#define GC_SUBRP(x) GC_PSEUDOVECTORP (x, PVEC_SUBR)
#define COMPILEDP(x) PSEUDOVECTORP (x, PVEC_COMPILED)
#define GC_COMPILEDP(x) GC_PSEUDOVECTORP (x, PVEC_COMPILED)
#define BUFFERP(x) PSEUDOVECTORP (x, PVEC_BUFFER)
#define GC_BUFFERP(x) GC_PSEUDOVECTORP (x, PVEC_BUFFER)
#define CHAR_TABLE_P(x) PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
#define GC_CHAR_TABLE_P(x) GC_PSEUDOVECTORP (x, PVEC_CHAR_TABLE)
#define BOOL_VECTOR_P(x) PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
#define GC_BOOL_VECTOR_P(x) GC_PSEUDOVECTORP (x, PVEC_BOOL_VECTOR)
#define FRAMEP(x) PSEUDOVECTORP (x, PVEC_FRAME)
#define GC_FRAMEP(x) GC_PSEUDOVECTORP (x, PVEC_FRAME)

#define SUB_CHAR_TABLE_P(x) (CHAR_TABLE_P (x) && NILP (XCHAR_TABLE (x)->top))

#define EQ(x, y) (XFASTINT (x) == XFASTINT (y))
#define GC_EQ(x, y) (XGCTYPE (x) == XGCTYPE (y) && XPNTR (x) == XPNTR (y))

#define CHECK_LIST(x) \
  do { if (!CONSP ((x)) && !NILP (x)) x = wrong_type_argument (Qlistp, (x)); } while (0)

#define CHECK_STRING(x) \
  do { if (!STRINGP ((x))) x = wrong_type_argument (Qstringp, (x)); } while (0)

#define CHECK_CONS(x) \
  do { if (!CONSP ((x))) x = wrong_type_argument (Qconsp, (x)); } while (0)

#define CHECK_SYMBOL(x) \
  do { if (!SYMBOLP ((x))) x = wrong_type_argument (Qsymbolp, (x)); } while (0)

#define CHECK_CHAR_TABLE(x) \
  do { if (!CHAR_TABLE_P ((x)))	\
	 x = wrong_type_argument (Qchar_table_p, (x)); } while (0)

#define CHECK_VECTOR(x) \
  do { if (!VECTORP ((x))) x = wrong_type_argument (Qvectorp, (x)); } while (0)

#define CHECK_VECTOR_OR_CHAR_TABLE(x)				\
  do { if (!VECTORP ((x)) && !CHAR_TABLE_P ((x)))			\
	 x = wrong_type_argument (Qvector_or_char_table_p, (x));	\
     } while (0)

#define CHECK_BUFFER(x) \
  do { if (!BUFFERP ((x))) x = wrong_type_argument (Qbufferp, (x)); } while (0)

#define CHECK_WINDOW(x) \
  do { if (!WINDOWP ((x))) x = wrong_type_argument (Qwindowp, (x)); } while (0)

/* This macro rejects windows on the interior of the window tree as
   "dead", which is what we want; this is an argument-checking macro, and
   the user should never get access to interior windows.

   A window of any sort, leaf or interior, is dead iff the buffer,
   vchild, and hchild members are all nil.  */

#define CHECK_LIVE_WINDOW(x)				\
  do {							\
    if (!WINDOWP ((x))					\
	|| NILP (XWINDOW ((x))->buffer))		\
      x = wrong_type_argument (Qwindow_live_p, (x));	\
  } while (0)

#define CHECK_PROCESS(x) \
  do { if (!PROCESSP ((x))) x = wrong_type_argument (Qprocessp, (x)); } while (0)

#define CHECK_NUMBER(x) \
  do { if (!INTEGERP ((x))) x = wrong_type_argument (Qintegerp, (x)); } while (0)

#define CHECK_NATNUM(x) \
  do { if (!NATNUMP (x)) x = wrong_type_argument (Qwholenump, (x)); } while (0)

#define CHECK_MARKER(x) \
  do { if (!MARKERP ((x))) x = wrong_type_argument (Qmarkerp, (x)); } while (0)

#define CHECK_NUMBER_COERCE_MARKER(x) \
  do { if (MARKERP ((x))) XSETFASTINT (x, marker_position (x)); \
    else if (!INTEGERP ((x))) x = wrong_type_argument (Qinteger_or_marker_p, (x)); } while (0)

#define XFLOATINT(n) extract_float((n))

#define CHECK_FLOAT(x)		\
  do { if (!FLOATP (x))			\
    x = wrong_type_argument (Qfloatp, (x)); } while (0)

#define CHECK_NUMBER_OR_FLOAT(x)	\
  do { if (!FLOATP (x) && !INTEGERP (x))	\
    x = wrong_type_argument (Qnumberp, (x)); } while (0)

#define CHECK_NUMBER_OR_FLOAT_COERCE_MARKER(x) \
  do { if (MARKERP (x)) XSETFASTINT (x, marker_position (x));	\
  else if (!INTEGERP (x) && !FLOATP (x))		\
    x = wrong_type_argument (Qnumber_or_marker_p, (x)); } while (0)

#define CHECK_OVERLAY(x) \
  do { if (!OVERLAYP ((x))) x = wrong_type_argument (Qoverlayp, (x));} while (0)

/* Since we can't assign directly to the CAR or CDR fields of a cons
   cell, use these when checking that those fields contain numbers.  */
#define CHECK_NUMBER_CAR(x) \
  do {					\
    Lisp_Object tmp = XCAR (x);		\
    CHECK_NUMBER (tmp);			\
    XSETCAR ((x), tmp);			\
  } while (0)

#define CHECK_NUMBER_CDR(x) \
  do {					\
    Lisp_Object tmp = XCDR (x);		\
    CHECK_NUMBER (tmp);			\
    XSETCDR ((x), tmp);			\
  } while (0)

/* Cast pointers to this type to compare them.  Some machines want int.  */
#ifndef PNTR_COMPARISON_TYPE
#define PNTR_COMPARISON_TYPE EMACS_UINT
#endif

/* Define a built-in function for calling from Lisp.
 `lname' should be the name to give the function in Lisp,
    as a null-terminated C string.
 `fnname' should be the name of the function in C.
    By convention, it starts with F.
 `sname' should be the name for the C constant structure
    that records information on this function for internal use.
    By convention, it should be the same as `fnname' but with S instead of F.
    It's too bad that C macros can't compute this from `fnname'.
 `minargs' should be a number, the minimum number of arguments allowed.
 `maxargs' should be a number, the maximum number of arguments allowed,
    or else MANY or UNEVALLED.
    MANY means pass a vector of evaluated arguments,
	 in the form of an integer number-of-arguments
	 followed by the address of a vector of Lisp_Objects
	 which contains the argument values.
    UNEVALLED means pass the list of unevaluated arguments
 `prompt' says how to read arguments for an interactive call.
    See the doc string for `interactive'.
    A null string means call interactively with no arguments.
 `doc' is documentation for the user.  */

#if (!defined (__STDC__) && !defined (PROTOTYPES)) \
    || defined (USE_NONANSI_DEFUN)

#define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, args)	\
  Lisp_Object fnname ();						\
  struct Lisp_Subr sname =						\
    { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)),	\
      fnname, minargs, maxargs, lname, prompt, 0};			\
  Lisp_Object fnname args

#else

/* This version of DEFUN declares a function prototype with the right
   arguments, so we can catch errors with maxargs at compile-time.  */
#define DEFUN(lname, fnname, sname, minargs, maxargs, prompt, doc)	\
  Lisp_Object fnname DEFUN_ARGS_ ## maxargs ;				\
  struct Lisp_Subr sname =						\
    { PVEC_SUBR | (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)),	\
      fnname, minargs, maxargs, lname, prompt, 0};			\
  Lisp_Object fnname

/* Note that the weird token-substitution semantics of ANSI C makes
   this work for MANY and UNEVALLED.  */
#define DEFUN_ARGS_MANY		(int, Lisp_Object *)
#define DEFUN_ARGS_UNEVALLED	(Lisp_Object)
#define DEFUN_ARGS_0	(void)
#define DEFUN_ARGS_1	(Lisp_Object)
#define DEFUN_ARGS_2	(Lisp_Object, Lisp_Object)
#define DEFUN_ARGS_3	(Lisp_Object, Lisp_Object, Lisp_Object)
#define DEFUN_ARGS_4	(Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
#define DEFUN_ARGS_5	(Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
			 Lisp_Object)
#define DEFUN_ARGS_6	(Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
			 Lisp_Object, Lisp_Object)
#define DEFUN_ARGS_7	(Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
			 Lisp_Object, Lisp_Object, Lisp_Object)
#define DEFUN_ARGS_8	(Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
			 Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
#endif

/* Non-zero if OBJ is a Lisp function.  */

#define FUNCTIONP(OBJ)					\
     ((CONSP (OBJ) && EQ (XCAR (OBJ), Qlambda))		\
      || (SYMBOLP (OBJ) && !NILP (Ffboundp (OBJ)))	\
      || COMPILEDP (OBJ)				\
      || SUBRP (OBJ))
     
/* defsubr (Sname);
 is how we define the symbol for function `name' at start-up time.  */
extern void defsubr P_ ((struct Lisp_Subr *));

#define MANY -2
#define UNEVALLED -1

extern void defvar_lisp P_ ((char *, Lisp_Object *));
extern void defvar_lisp_nopro P_ ((char *, Lisp_Object *));
extern void defvar_bool P_ ((char *, int *));
extern void defvar_int P_ ((char *, int *));
extern void defvar_per_buffer P_ ((char *, Lisp_Object *, Lisp_Object, char *));
extern void defvar_kboard P_ ((char *, int));

/* Macros we use to define forwarded Lisp variables.
   These are used in the syms_of_FILENAME functions.  */

#define DEFVAR_LISP(lname, vname, doc) defvar_lisp (lname, vname)
#define DEFVAR_LISP_NOPRO(lname, vname, doc) defvar_lisp_nopro (lname, vname)
#define DEFVAR_BOOL(lname, vname, doc) defvar_bool (lname, vname)
#define DEFVAR_INT(lname, vname, doc) defvar_int (lname, vname)
#define DEFVAR_PER_BUFFER(lname, vname, type, doc)  \
 defvar_per_buffer (lname, vname, type, 0)
#define DEFVAR_KBOARD(lname, vname, doc) \
 defvar_kboard (lname, \
		(int)((char *)(&current_kboard->vname) \
		      - (char *)current_kboard))



/* Structure for recording Lisp call stack for backtrace purposes.  */

/* The special binding stack holds the outer values of variables while
   they are bound by a function application or a let form, stores the
   code to be executed for Lisp unwind-protect forms, and stores the C
   functions to be called for record_unwind_protect.

   If func is non-zero, undoing this binding applies func to old_value;
      This implements record_unwind_protect.
   If func is zero and symbol is nil, undoing this binding evaluates
      the list of forms in old_value; this implements Lisp's unwind-protect
      form.

   Otherwise, the element is a variable binding.
   
   If the symbol field is a symbol, it is an ordinary variable binding.
   
   Otherwise, it should be a structure (SYMBOL WHERE
   . CURRENT-BUFFER), which means having bound a local value while
   CURRENT-BUFFER was active.  If WHERE is nil this means we saw the
   default value when binding SYMBOL.  WHERE being a buffer or frame
   means we saw a buffer-local or frame-local value.  Other values of
   WHERE mean an internal error.  */

struct specbinding
  {
    Lisp_Object symbol, old_value;
    Lisp_Object (*func) P_ ((Lisp_Object));
    Lisp_Object unused;		/* Dividing by 16 is faster than by 12 */
  };

extern struct specbinding *specpdl;
extern struct specbinding *specpdl_ptr;
extern int specpdl_size;

#define BINDING_STACK_SIZE()	(specpdl_ptr - specpdl)

/* Everything needed to describe an active condition case.  */
struct handler
  {
    /* The handler clauses and variable from the condition-case form.  */
    Lisp_Object handler;
    Lisp_Object var;
    /* Fsignal stores here the condition-case clause that applies,
       and Fcondition_case thus knows which clause to run.  */
    Lisp_Object chosen_clause;

    /* Used to effect the longjump out to the handler.  */
    struct catchtag *tag;

    /* The next enclosing handler.  */
    struct handler *next;
  };

extern struct handler *handlerlist;

extern struct catchtag *catchlist;
extern struct backtrace *backtrace_list;

extern Lisp_Object memory_signal_data;

/* An address near the bottom of the stack.
   Tells GC how to save a copy of the stack.  */
extern char *stack_bottom;

/* Check quit-flag and quit if it is non-nil.
   Typing C-g does not directly cause a quit; it only sets Vquit_flag.
   So the program needs to do QUIT at times when it is safe to quit.
   Every loop that might run for a long time or might not exit
   ought to do QUIT at least once, at a safe place.
   Unless that is impossible, of course.
   But it is very desirable to avoid creating loops where QUIT is impossible.

   Exception: if you set immediate_quit to nonzero,
   then the handler that responds to the C-g does the quit itself.
   This is a good thing to do around a loop that has no side effects
   and (in particular) cannot call arbitrary Lisp code.  */

#define QUIT						\
  do {							\
    if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))	\
      {							\
	Vquit_flag = Qnil;				\
	Fsignal (Qquit, Qnil);				\
      }							\
  } while (0)

/* Nonzero if ought to quit now.  */

#define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))

/* Variables used locally in the following case handling macros.  */
extern int case_temp1;
extern Lisp_Object case_temp2;

/* Current buffer's map from characters to lower-case characters.  */

#define DOWNCASE_TABLE current_buffer->downcase_table

/* Current buffer's map from characters to upper-case characters.  */

#define UPCASE_TABLE current_buffer->upcase_table

/* Downcase a character, or make no change if that cannot be done.  */

#define DOWNCASE(CH)						\
  ((case_temp1 = (CH),						\
    case_temp2 = CHAR_TABLE_REF (DOWNCASE_TABLE, case_temp1),	\
    NATNUMP (case_temp2))					\
   ? XFASTINT (case_temp2) : case_temp1)

/* 1 if CH is upper case.  */

#define UPPERCASEP(CH) (DOWNCASE (CH) != (CH))

/* 1 if CH is neither upper nor lower case.  */

#define NOCASEP(CH) (UPCASE1 (CH) == (CH))

/* 1 if CH is lower case.  */

#define LOWERCASEP(CH) (!UPPERCASEP (CH) && !NOCASEP(CH))

/* Upcase a character, or make no change if that cannot be done.  */

#define UPCASE(CH) (!UPPERCASEP (CH) ? UPCASE1 (CH) : (CH))

/* Upcase a character known to be not upper case.  */

#define UPCASE1(CH)						\
  ((case_temp1 = (CH),						\
    case_temp2 = CHAR_TABLE_REF (UPCASE_TABLE, case_temp1),	\
    NATNUMP (case_temp2))					\
   ? XFASTINT (case_temp2) : case_temp1)

extern Lisp_Object Vascii_downcase_table;

/* Number of bytes of structure consed since last GC.  */

extern int consing_since_gc;

/* Threshold for doing another gc.  */

extern int gc_cons_threshold;

/* Structure for recording stack slots that need marking.  */

/* This is a chain of structures, each of which points at a Lisp_Object variable
 whose value should be marked in garbage collection.
 Normally every link of the chain is an automatic variable of a function,
 and its `val' points to some argument or local variable of the function.
 On exit to the function, the chain is set back to the value it had on entry.
 This way, no link remains in the chain when the stack frame containing the
 link disappears.

 Every function that can call Feval must protect in this fashion all
 Lisp_Object variables whose contents will be used again.  */

extern struct gcpro *gcprolist;

struct gcpro
{
  struct gcpro *next;
  
  /* Address of first protected variable.  */
  volatile Lisp_Object *var;
  
  /* Number of consecutive protected variables.  */
  int nvars;
  
#ifdef DEBUG_GCPRO
  int level;
#endif
};

/* Values of GC_MARK_STACK during compilation:

   0	Use GCPRO as before
   1	Do the real thing, make GCPROs and UNGCPRO no-ops.
   2    Mark the stack, and check that everything GCPRO'd is
	marked.
   3	Mark using GCPRO's, mark stack last, and count how many
	dead objects are kept alive.  */


#define GC_USE_GCPROS_AS_BEFORE		0
#define GC_MAKE_GCPROS_NOOPS		1
#define GC_MARK_STACK_CHECK_GCPROS	2
#define GC_USE_GCPROS_CHECK_ZOMBIES	3

#ifndef GC_MARK_STACK
#define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE
#endif

#if GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS

#define GCPRO1(varname) ((void) 0)
#define GCPRO2(varname1, varname2)((void) 0) 
#define GCPRO3(varname1, varname2, varname3) ((void) 0) 
#define GCPRO4(varname1, varname2, varname3, varname4) ((void) 0)
#define GCPRO5(varname1, varname2, varname3, varname4, varname5) ((void) 0)
#define UNGCPRO ((void) 0)

#else /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */

#ifndef DEBUG_GCPRO

#define GCPRO1(varname) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
  gcprolist = &gcpro1; }

#define GCPRO2(varname1, varname2) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcprolist = &gcpro2; }

#define GCPRO3(varname1, varname2, varname3) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcprolist = &gcpro3; }

#define GCPRO4(varname1, varname2, varname3, varname4) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
  gcprolist = &gcpro4; }

#define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
  gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
  gcprolist = &gcpro5; }

#define UNGCPRO (gcprolist = gcpro1.next)

#else

extern int gcpro_level;

#define GCPRO1(varname) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname; gcpro1.nvars = 1; \
  gcpro1.level = gcpro_level++; \
  gcprolist = &gcpro1; }

#define GCPRO2(varname1, varname2) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro1.level = gcpro_level; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro2.level = gcpro_level++; \
  gcprolist = &gcpro2; }

#define GCPRO3(varname1, varname2, varname3) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro1.level = gcpro_level; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcpro3.level = gcpro_level++; \
  gcprolist = &gcpro3; }

#define GCPRO4(varname1, varname2, varname3, varname4) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro1.level = gcpro_level; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
  gcpro4.level = gcpro_level++; \
  gcprolist = &gcpro4; }

#define GCPRO5(varname1, varname2, varname3, varname4, varname5) \
 {gcpro1.next = gcprolist; gcpro1.var = &varname1; gcpro1.nvars = 1; \
  gcpro1.level = gcpro_level; \
  gcpro2.next = &gcpro1; gcpro2.var = &varname2; gcpro2.nvars = 1; \
  gcpro3.next = &gcpro2; gcpro3.var = &varname3; gcpro3.nvars = 1; \
  gcpro4.next = &gcpro3; gcpro4.var = &varname4; gcpro4.nvars = 1; \
  gcpro5.next = &gcpro4; gcpro5.var = &varname5; gcpro5.nvars = 1; \
  gcpro5.level = gcpro_level++; \
  gcprolist = &gcpro5; }

#define UNGCPRO					\
 ((--gcpro_level != gcpro1.level)		\
  ? (abort (), 0)				\
  : ((gcprolist = gcpro1.next), 0))

#endif /* DEBUG_GCPRO */
#endif /* GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS */


/* Evaluate expr, UNGCPRO, and then return the value of expr.  */
#define RETURN_UNGCPRO(expr)			\
do						\
    {						\
      Lisp_Object ret_ungc_val;			\
      ret_ungc_val = (expr);			\
      UNGCPRO;					\
      return ret_ungc_val;			\
    }						\
while (0)

/* Call staticpro (&var) to protect static variable `var'.  */

void staticpro P_ ((Lisp_Object *));

/* Declare a Lisp-callable function.  The MAXARGS parameter has the same
   meaning as in the DEFUN macro, and is used to construct a prototype.  */
#if (!defined (__STDC__) &&  !defined (PROTOTYPES)) \
    || defined (USE_NONANSI_DEFUN)
#define EXFUN(fnname, maxargs) \
  extern Lisp_Object fnname ()
#else
/* We can use the same trick as in the DEFUN macro to generate the
   appropriate prototype.  */
#define EXFUN(fnname, maxargs) \
  extern Lisp_Object fnname DEFUN_ARGS_ ## maxargs
#endif

/* Forward declarations for prototypes.  */
struct window;
struct frame;

/* Defined in data.c */
extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound;
extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
extern Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range;
extern Lisp_Object Qvoid_variable, Qvoid_function;
extern Lisp_Object Qsetting_constant, Qinvalid_read_syntax;
extern Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch;
extern Lisp_Object Qend_of_file, Qarith_error;
extern Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only;
extern Lisp_Object Qmark_inactive, Qtext_read_only;

extern Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error;
extern Lisp_Object Qoverflow_error, Qunderflow_error;

extern Lisp_Object Qintegerp, Qnumberp, Qnatnump, Qwholenump;
extern Lisp_Object Qsymbolp, Qlistp, Qconsp;
extern Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp;
extern Lisp_Object Qchar_or_string_p, Qmarkerp, Qvectorp;
extern Lisp_Object Qinteger_or_marker_p, Qnumber_or_marker_p;
extern Lisp_Object Qchar_table_p, Qvector_or_char_table_p;
extern Lisp_Object Qboundp, Qfboundp;
extern Lisp_Object Qbuffer_or_string_p;
extern Lisp_Object Qcdr;

extern Lisp_Object Qfloatp, Qinteger_or_floatp, Qinteger_or_float_or_marker_p;

extern Lisp_Object Qframep;

extern void circular_list_error P_ ((Lisp_Object));

EXFUN (Feq, 2);
EXFUN (Fnull, 1);
EXFUN (Flistp, 1);
EXFUN (Fconsp, 1);
EXFUN (Fatom, 1);
EXFUN (Fnlistp, 1);
EXFUN (Fintegerp, 1);
EXFUN (Fnatnump, 1);
EXFUN (Fsymbolp, 1);
EXFUN (Fvectorp, 1);
EXFUN (Fstringp, 1);
EXFUN (Fmultibyte_string_p, 1);
EXFUN (Farrayp, 1);
EXFUN (Fsequencep, 1);
EXFUN (Fbufferp, 1);
EXFUN (Fmarkerp, 1);
EXFUN (Fsubrp, 1);
EXFUN (Fchar_or_string_p, 1);
EXFUN (Finteger_or_marker_p, 1);
EXFUN (Ffloatp, 1);
EXFUN (Finteger_or_floatp, 1);
EXFUN (Finteger_or_float_or_marker_p, 1);

EXFUN (Fcar, 1);
EXFUN (Fcar_safe, 1);
EXFUN (Fcdr, 1);
EXFUN (Fcdr_safe, 1);
EXFUN (Fsetcar, 2);
EXFUN (Fsetcdr, 2);
EXFUN (Fboundp, 1);
EXFUN (Ffboundp, 1);
EXFUN (Fmakunbound, 1);
EXFUN (Ffmakunbound, 1);
EXFUN (Fsymbol_function, 1);
EXFUN (Fsymbol_plist, 1);
EXFUN (Fsymbol_name, 1);
extern Lisp_Object indirect_function P_ ((Lisp_Object));
EXFUN (Findirect_function, 1);
EXFUN (Ffset, 2);
EXFUN (Fsetplist, 2);
EXFUN (Fsymbol_value, 1);
extern Lisp_Object find_symbol_value P_ ((Lisp_Object));
EXFUN (Fset, 2);
EXFUN (Fdefault_value, 1);
EXFUN (Fset_default, 2);
EXFUN (Fdefault_boundp, 1);
EXFUN (Fmake_local_variable, 1);
EXFUN (Flocal_variable_p, 2);
EXFUN (Flocal_variable_if_set_p, 2);

EXFUN (Faref, 2);
EXFUN (Faset, 3);

EXFUN (Fstring_to_number, 2);
EXFUN (Fnumber_to_string, 1);
EXFUN (Feqlsign, 2);
EXFUN (Fgtr, 2);
EXFUN (Flss, 2);
EXFUN (Fgeq, 2);
EXFUN (Fleq, 2);
EXFUN (Fneq, 2);
EXFUN (Fzerop, 1);
EXFUN (Fplus, MANY);
EXFUN (Fminus, MANY);
EXFUN (Ftimes, MANY);
EXFUN (Fquo, MANY);
EXFUN (Frem, 2);
EXFUN (Fmax, MANY);
EXFUN (Fmin, MANY);
EXFUN (Flogand, MANY);
EXFUN (Flogior, MANY);
EXFUN (Flogxor, MANY);
EXFUN (Flognot, 1);
EXFUN (Flsh, 2);
EXFUN (Fash, 2);

EXFUN (Fadd1, 1);
EXFUN (Fsub1, 1);
EXFUN (Fmake_variable_buffer_local, 1);

extern Lisp_Object indirect_variable P_ ((Lisp_Object));
extern Lisp_Object long_to_cons P_ ((unsigned long));
extern unsigned long cons_to_long P_ ((Lisp_Object));
extern void args_out_of_range P_ ((Lisp_Object, Lisp_Object));
extern void args_out_of_range_3 P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object wrong_type_argument P_ ((Lisp_Object, Lisp_Object));
extern void store_symval_forwarding P_ ((Lisp_Object, Lisp_Object,
					 Lisp_Object, struct buffer *));
extern Lisp_Object do_symval_forwarding P_ ((Lisp_Object));
extern Lisp_Object set_internal P_ ((Lisp_Object, Lisp_Object, struct buffer *, int));
extern void syms_of_data P_ ((void));
extern void init_data P_ ((void));
extern void swap_in_global_binding P_ ((Lisp_Object));

/* Defined in cmds.c */
EXFUN (Fend_of_line, 1);
EXFUN (Fforward_char, 1);
EXFUN (Fforward_line, 1);
extern int forward_point P_ ((int));
extern int internal_self_insert P_ ((int, int));
extern void syms_of_cmds P_ ((void));
extern void keys_of_cmds P_ ((void));

/* Defined in coding.c */
EXFUN (Fcoding_system_p, 1);
EXFUN (Fcheck_coding_system, 1);
EXFUN (Fread_coding_system, 2);
EXFUN (Fread_non_nil_coding_system, 1);
EXFUN (Ffind_operation_coding_system, MANY);
EXFUN (Fencode_coding_string, 3);
EXFUN (Fdecode_coding_string, 3);
extern Lisp_Object detect_coding_system P_ ((unsigned char *, int, int, int));
Lisp_Object code_convert_string_norecord P_ ((Lisp_Object, Lisp_Object, int));
extern void init_coding P_ ((void));
extern void init_coding_once P_ ((void));
extern void syms_of_coding P_ ((void));
extern Lisp_Object code_convert_string_norecord P_ ((Lisp_Object, Lisp_Object,
						     int));

/* Defined in charset.c */
extern int nonascii_insert_offset;
extern Lisp_Object Vnonascii_translation_table;
EXFUN (Fchar_bytes, 1);
EXFUN (Fchar_width, 1);
EXFUN (Fstring, MANY);
extern int chars_in_text P_ ((unsigned char *, int));
extern int multibyte_chars_in_text P_ ((unsigned char *, int));
extern int unibyte_char_to_multibyte P_ ((int));
extern int multibyte_char_to_unibyte P_ ((int, Lisp_Object));
extern Lisp_Object Qcharset;
extern void init_charset_once P_ ((void));
extern void syms_of_charset P_ ((void));

/* Defined in syntax.c */
EXFUN (Fforward_word, 1);
EXFUN (Fskip_chars_forward, 2);
EXFUN (Fskip_chars_backward, 2);
EXFUN (Fsyntax_table_p, 1);
EXFUN (Fsyntax_table, 0);
EXFUN (Fset_syntax_table, 1);
extern void init_syntax_once P_ ((void));
extern void syms_of_syntax P_ ((void));

/* Defined in fns.c */
extern int use_dialog_box;
extern int next_almost_prime P_ ((int));
extern Lisp_Object larger_vector P_ ((Lisp_Object, int, Lisp_Object));
extern void sweep_weak_hash_tables P_ ((void));
extern Lisp_Object Qstring_lessp;
EXFUN (Foptimize_char_table, 1);
extern Lisp_Object Vfeatures;
extern Lisp_Object QCtest, QCweakness, Qequal;
unsigned sxhash P_ ((Lisp_Object, int));
Lisp_Object make_hash_table P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
				 Lisp_Object, Lisp_Object, Lisp_Object,
				 Lisp_Object));
Lisp_Object copy_hash_table P_ ((struct Lisp_Hash_Table *));
int hash_lookup P_ ((struct Lisp_Hash_Table *, Lisp_Object, unsigned *));
int hash_put P_ ((struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
		  unsigned));
void hash_remove P_ ((struct Lisp_Hash_Table *, Lisp_Object));
void hash_clear P_ ((struct Lisp_Hash_Table *));
void remove_hash_entry P_ ((struct Lisp_Hash_Table *, int));
extern void init_fns P_ ((void));
EXFUN (Fsxhash, 1);
EXFUN (Fmake_hash_table, MANY);
EXFUN (Fcopy_hash_table, 1);
EXFUN (Fhash_table_count, 1);
EXFUN (Fhash_table_rehash_size, 1);
EXFUN (Fhash_table_rehash_threshold, 1);
EXFUN (Fhash_table_size, 1);
EXFUN (Fhash_table_test, 1);
EXFUN (Fhash_table_weak, 1);
EXFUN (Fhash_table_p, 1);
EXFUN (Fclrhash, 1);
EXFUN (Fgethash, 3);
EXFUN (Fputhash, 3);
EXFUN (Fremhash, 2);
EXFUN (Fmaphash, 2);
EXFUN (Fdefine_hash_table_test, 3);

EXFUN (Fidentity, 1);
EXFUN (Frandom, 1);
EXFUN (Flength, 1);
EXFUN (Fsafe_length, 1);
EXFUN (Fappend, MANY);
EXFUN (Fconcat, MANY);
EXFUN (Fvconcat, MANY);
EXFUN (Fcopy_sequence, 1);
EXFUN (Fstring_make_multibyte, 1);
EXFUN (Fstring_make_unibyte, 1);
EXFUN (Fstring_as_multibyte, 1);
EXFUN (Fstring_as_unibyte, 1);
EXFUN (Fsubstring, 3);
extern Lisp_Object substring_both P_ ((Lisp_Object, int, int, int, int));
EXFUN (Fnth, 2);
EXFUN (Fnthcdr, 2);
EXFUN (Fmemq, 2);
EXFUN (Fassq, 2);
EXFUN (Fassoc, 2);
EXFUN (Felt, 2);
EXFUN (Fmember, 2);
EXFUN (Frassq, 2);
EXFUN (Fdelq, 2);
EXFUN (Fsort, 2);
EXFUN (Freverse, 1);
EXFUN (Fnreverse, 1);
EXFUN (Fget, 2);
EXFUN (Fput, 3);
EXFUN (Fequal, 2);
EXFUN (Ffillarray, 2);
EXFUN (Fnconc, MANY);
EXFUN (Fmapcar, 2);
EXFUN (Fmapconcat, 3);
EXFUN (Fy_or_n_p, 1);
extern Lisp_Object do_yes_or_no_p P_ ((Lisp_Object));
EXFUN (Frequire, 3);
EXFUN (Fprovide, 2);
extern Lisp_Object concat2 P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object concat3 P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object nconc2 P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object assq_no_quit P_ ((Lisp_Object, Lisp_Object));
extern void clear_string_char_byte_cache P_ ((void));
extern int string_char_to_byte P_ ((Lisp_Object, int));
extern int string_byte_to_char P_ ((Lisp_Object, int));
extern Lisp_Object string_make_multibyte P_ ((Lisp_Object));
extern Lisp_Object string_make_unibyte P_ ((Lisp_Object));
EXFUN (Fcopy_alist, 1);
EXFUN (Fplist_get, 2);
EXFUN (Fplist_put, 3);
EXFUN (Fset_char_table_parent, 2);
EXFUN (Fchar_table_extra_slot, 2);
EXFUN (Fset_char_table_extra_slot, 3);
EXFUN (Frassoc, 2);
EXFUN (Fstring_equal, 2);
EXFUN (Fcompare_strings, 7);
EXFUN (Fstring_lessp, 2);
extern int char_table_translate P_ ((Lisp_Object, int));
extern void map_char_table P_ ((void (*) (Lisp_Object, Lisp_Object, Lisp_Object),
				Lisp_Object, Lisp_Object, Lisp_Object, int,
				Lisp_Object *));
extern Lisp_Object char_table_ref_and_index P_ ((Lisp_Object, int, int *));
extern void syms_of_fns P_ ((void));

/* Defined in floatfns.c */
extern double extract_float P_ ((Lisp_Object));
EXFUN (Ffloat, 1);
EXFUN (Ftruncate, 2);
extern void init_floatfns P_ ((void));
extern void syms_of_floatfns P_ ((void));

/* Defined in insdel.c */
extern Lisp_Object Qinhibit_modification_hooks;
extern void move_gap P_ ((int));
extern void move_gap_both P_ ((int, int));
extern void make_gap P_ ((int));
extern int copy_text P_ ((unsigned char *, unsigned char *, int, int, int));
extern int count_size_as_multibyte P_ ((unsigned char *, int));
extern int count_combining_before P_ ((unsigned char *, int, int, int));
extern int count_combining_after P_ ((unsigned char *, int, int, int));
extern void insert P_ ((unsigned char *, int));
extern void insert_and_inherit P_ ((unsigned char *, int));
extern void insert_1 P_ ((unsigned char *, int, int, int, int));
extern void insert_1_both P_ ((unsigned char *, int, int, int, int, int));
extern void insert_from_string P_ ((Lisp_Object, int, int, int, int, int));
extern void insert_from_buffer P_ ((struct buffer *, int, int, int));
extern void insert_char P_ ((int));
extern void insert_string P_ ((char *));
extern void insert_before_markers P_ ((unsigned char *, int));
extern void insert_before_markers_and_inherit P_ ((unsigned char *, int));
extern void insert_from_string_before_markers P_ ((Lisp_Object, int, int, int, int, int));
extern void del_range P_ ((int, int));
extern Lisp_Object del_range_1 P_ ((int, int, int, int));
extern void del_range_byte P_ ((int, int, int));
extern void del_range_both P_ ((int, int, int, int, int));
extern Lisp_Object del_range_2 P_ ((int, int, int, int, int));
extern void modify_region P_ ((struct buffer *, int, int));
extern void prepare_to_modify_buffer P_ ((int, int, int *));
extern void signal_before_change P_ ((int, int, int *));
extern void signal_after_change P_ ((int, int, int));
extern void adjust_after_replace P_ ((int, int, Lisp_Object, int, int));
extern void adjust_after_insert P_ ((int, int, int, int, int));
extern void replace_range P_ ((int, int, Lisp_Object, int, int, int));
extern void syms_of_insdel P_ ((void));

/* Defined in dispnew.c */
extern Lisp_Object selected_frame;
EXFUN (Fding, 1);
EXFUN (Fredraw_frame, 1);
EXFUN (Fredraw_display, 0);
EXFUN (Fsleep_for, 2);
EXFUN (Fsit_for, 3);
extern Lisp_Object sit_for P_ ((int, int, int, int, int));
extern void init_display P_ ((void));
extern void syms_of_display P_ ((void));
extern void safe_bcopy P_ ((char *, char *, int));

/* Defined in xdisp.c */
extern Lisp_Object Qinhibit_point_motion_hooks;
extern Lisp_Object Qinhibit_redisplay, Qdisplay;
extern Lisp_Object Qinhibit_eval_during_redisplay;
extern Lisp_Object Qmessage_truncate_lines;
extern Lisp_Object Vmessage_log_max;
extern int message_enable_multibyte;
extern Lisp_Object echo_area_buffer[2];
extern void check_message_stack P_ ((void));
extern void setup_echo_area_for_printing P_ ((int));
extern int push_message P_ ((void));
extern Lisp_Object push_message_unwind P_ ((Lisp_Object));
extern void pop_message P_ ((void));
extern void restore_message P_ ((void));
extern Lisp_Object current_message P_ ((void));
extern void set_message P_ ((char *s, Lisp_Object, int, int));
extern void clear_message P_ ((int, int));
extern void message P_ ((/* char *, ... */));
extern void message_nolog P_ ((/* char *, ... */));
extern void message1 P_ ((char *));
extern void message1_nolog P_ ((char *));
extern void message2 P_ ((char *, int, int));
extern void message2_nolog P_ ((char *, int, int));
extern void message3 P_ ((Lisp_Object, int, int));
extern void message3_nolog P_ ((Lisp_Object, int, int));
extern void message_dolog P_ ((char *, int, int, int));
extern void message_with_string P_ ((char *, Lisp_Object, int));
extern void message_log_maybe_newline P_ ((void));
extern void update_echo_area P_ ((void));
extern void truncate_echo_area P_ ((int));
extern void redisplay P_ ((void));
extern int check_point_in_composition
	P_ ((struct buffer *, int, struct buffer *, int));
extern void redisplay_preserve_echo_area P_ ((int));
extern void mark_window_display_accurate P_ ((Lisp_Object, int));
extern void prepare_menu_bars P_ ((void));
extern void syms_of_xdisp P_ ((void));
extern void init_xdisp P_ ((void));
extern Lisp_Object safe_eval P_ ((Lisp_Object));
extern int pos_visible_p P_ ((struct window *, int, int *, int));

/* Defined in vm-limit.c.  */
extern void memory_warnings P_ ((POINTER_TYPE *, void (*warnfun) ()));

/* Defined in alloc.c */
extern void check_pure_size P_ ((void));
extern void allocate_string_data P_ ((struct Lisp_String *, int, int));
extern void uninterrupt_malloc P_ ((void));
extern void malloc_warning P_ ((char *));
extern void memory_full P_ ((void));
extern void buffer_memory_full P_ ((void));
extern int survives_gc_p P_ ((Lisp_Object));
extern void mark_object P_ ((Lisp_Object *));
extern Lisp_Object Vpurify_flag;
EXFUN (Fcons, 2);
EXFUN (list2, 2);
EXFUN (list3, 3);
EXFUN (list4, 4);
EXFUN (list5, 5);
EXFUN (Flist, MANY);
EXFUN (Fmake_list, 2);
extern Lisp_Object allocate_misc P_ ((void));
EXFUN (Fmake_vector, 2);
EXFUN (Fvector, MANY);
EXFUN (Fmake_symbol, 1);
EXFUN (Fmake_marker, 0);
EXFUN (Fmake_string, 2);
extern Lisp_Object build_string P_ ((char *));
extern Lisp_Object make_string P_ ((char *, int));
extern Lisp_Object make_unibyte_string P_ ((char *, int));
extern Lisp_Object make_multibyte_string P_ ((char *, int, int));
extern Lisp_Object make_event_array P_ ((int, Lisp_Object *));
extern Lisp_Object make_uninit_string P_ ((int));
extern Lisp_Object make_uninit_multibyte_string P_ ((int, int));
extern Lisp_Object make_string_from_bytes P_ ((char *, int, int));
extern Lisp_Object make_specified_string P_ ((char *, int, int, int));
EXFUN (Fpurecopy, 1);
extern Lisp_Object make_pure_string P_ ((char *, int, int, int));
extern Lisp_Object pure_cons P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object make_pure_vector P_ ((EMACS_INT));
EXFUN (Fgarbage_collect, 0);
EXFUN (Fmake_byte_code, MANY);
EXFUN (Fmake_bool_vector, 2);
EXFUN (Fmake_char_table, 2);
extern Lisp_Object make_sub_char_table P_ ((Lisp_Object));
extern Lisp_Object Qchar_table_extra_slots;
extern struct Lisp_Vector *allocate_vector P_ ((EMACS_INT));
extern struct Lisp_Vector *allocate_other_vector P_ ((EMACS_INT));
extern struct Lisp_Hash_Table *allocate_hash_table P_ ((void));
extern struct window *allocate_window P_ ((void));
extern struct frame *allocate_frame P_ ((void));
extern struct Lisp_Process *allocate_process P_ ((void));
extern int gc_in_progress;
extern Lisp_Object make_float P_ ((double));
extern void display_malloc_warning P_ ((void));
extern int inhibit_garbage_collection P_ ((void));
extern void free_marker P_ ((Lisp_Object));
extern void free_cons P_ ((struct Lisp_Cons *));
extern void init_alloc_once P_ ((void));
extern void init_alloc P_ ((void));
extern void syms_of_alloc P_ ((void));
extern struct buffer * allocate_buffer P_ ((void));

/* Defined in print.c */
extern Lisp_Object Vprin1_to_string_buffer;
extern void debug_print P_ ((Lisp_Object));
EXFUN (Fprin1, 2);
EXFUN (Fprin1_to_string, 2);
EXFUN (Fprinc, 2);
EXFUN (Fterpri, 1);
EXFUN (Fprint, 2);
EXFUN (Ferror_message_string, 1);
extern Lisp_Object Vstandard_output, Qstandard_output;
extern Lisp_Object Qexternal_debugging_output;
extern void temp_output_buffer_setup P_ ((char *));
extern int print_level, print_escape_newlines;
extern Lisp_Object Qprint_escape_newlines;
extern void write_string P_ ((char *, int));
extern void write_string_1 P_ ((char *, int, Lisp_Object));
extern void print_error_message P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object internal_with_output_to_temp_buffer
	P_ ((char *, Lisp_Object (*) (Lisp_Object), Lisp_Object));
extern void float_to_string P_ ((unsigned char *, double));
extern void syms_of_print P_ ((void));

/* Defined in doprnt.c */
extern int doprnt P_ ((char *, int, char *, char *, int, char **));
extern int doprnt_lisp P_ ((char *, int, char *, char *, int, char **));

/* Defined in lread.c */
extern Lisp_Object Qvariable_documentation, Qstandard_input;
extern Lisp_Object Vobarray, initial_obarray, Vstandard_input;
EXFUN (Fread, 1);
EXFUN (Fread_from_string, 3);
EXFUN (Fintern, 2);
EXFUN (Fintern_soft, 2);
EXFUN (Fload, 5);
EXFUN (Fget_file_char, 0);
EXFUN (Fread_char, 2);
EXFUN (Fread_event, 2);
extern Lisp_Object read_filtered_event P_ ((int, int, int, int));
EXFUN (Feval_region, 4);
extern Lisp_Object intern P_ ((char *));
extern Lisp_Object make_symbol P_ ((char *));
extern Lisp_Object oblookup P_ ((Lisp_Object, char *, int, int));
#define LOADHIST_ATTACH(x) \
 if (initialized) Vcurrent_load_list = Fcons (x, Vcurrent_load_list)
extern Lisp_Object Vcurrent_load_list;
extern Lisp_Object Vload_history, Vload_suffixes;
extern int openp P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
		      Lisp_Object *, int));
extern int isfloat_string P_ ((char *));
extern void map_obarray P_ ((Lisp_Object, void (*) (Lisp_Object, Lisp_Object),
			     Lisp_Object));
extern void dir_warning P_ ((char *, Lisp_Object));
extern void close_load_descs P_ ((void));
extern void init_obarray P_ ((void));
extern void init_lread P_ ((void));
extern void syms_of_lread P_ ((void));

/* Defined in eval.c */
extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qdefun, Qmacro;
extern Lisp_Object Vinhibit_quit, Qinhibit_quit, Vquit_flag;
extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments;
extern Lisp_Object Vautoload_queue;
extern Lisp_Object Vdebug_on_error;
extern Lisp_Object Vsignaling_function;
extern int handling_signal;
extern int interactive_p P_ ((int));

/* To run a normal hook, use the appropriate function from the list below.
   The calling convention:

   if (!NILP (Vrun_hooks))
     call1 (Vrun_hooks, Qmy_funny_hook);

   should no longer be used.  */
extern Lisp_Object Vrun_hooks;
EXFUN (Frun_hooks, MANY);
EXFUN (Frun_hook_with_args, MANY);
EXFUN (Frun_hook_with_args_until_success, MANY);
EXFUN (Frun_hook_with_args_until_failure, MANY);
extern Lisp_Object run_hook_list_with_args P_ ((Lisp_Object, int, Lisp_Object *));
extern void run_hook_with_args_2 P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
EXFUN (Fand, UNEVALLED);
EXFUN (For, UNEVALLED);
EXFUN (Fif, UNEVALLED);
EXFUN (Fprogn, UNEVALLED);
EXFUN (Fprog1, UNEVALLED);
EXFUN (Fprog2, UNEVALLED);
EXFUN (Fsetq, UNEVALLED);
EXFUN (Fquote, UNEVALLED);
EXFUN (Fuser_variable_p, 1);
EXFUN (Finteractive_p, 0);
EXFUN (Fdefun, UNEVALLED);
EXFUN (Flet, UNEVALLED);
EXFUN (FletX, UNEVALLED);
EXFUN (Fwhile, UNEVALLED);
EXFUN (Fcatch, UNEVALLED);
EXFUN (Fthrow, 2) NO_RETURN;
EXFUN (Funwind_protect, UNEVALLED);
EXFUN (Fcondition_case, UNEVALLED);
EXFUN (Fsignal, 2);
EXFUN (Fautoload, 5);
EXFUN (Fcommandp, 1);
EXFUN (Feval, 1);
EXFUN (Fapply, MANY);
EXFUN (Ffuncall, MANY);
EXFUN (Fbacktrace, 0);
extern Lisp_Object apply1 P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object call0 P_ ((Lisp_Object));
extern Lisp_Object call1 P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object call2 P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object call3 P_ ((Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object call4 P_ ((Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object call5 P_ ((Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object call6 P_ ((Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object));
EXFUN (Fdo_auto_save, 2);
extern Lisp_Object apply_lambda P_ ((Lisp_Object, Lisp_Object, int));
extern Lisp_Object internal_catch P_ ((Lisp_Object, Lisp_Object (*) (Lisp_Object), Lisp_Object));
extern Lisp_Object internal_condition_case P_ ((Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object)));
extern Lisp_Object internal_condition_case_1 P_ ((Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object)));
extern Lisp_Object internal_condition_case_2 P_ ((Lisp_Object (*) (int, Lisp_Object *), int, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object)));
extern void specbind P_ ((Lisp_Object, Lisp_Object));
extern void record_unwind_protect P_ ((Lisp_Object (*) (Lisp_Object), Lisp_Object));
extern Lisp_Object unbind_to P_ ((int, Lisp_Object));
extern void error P_ ((/* char *, ... */)) NO_RETURN;
extern void do_autoload P_ ((Lisp_Object, Lisp_Object));
extern Lisp_Object un_autoload P_ ((Lisp_Object));
EXFUN (Ffetch_bytecode, 1);
extern void init_eval_once P_ ((void));
extern Lisp_Object safe_call P_ ((int, Lisp_Object *));
extern Lisp_Object safe_call1 P_ ((Lisp_Object, Lisp_Object));
extern void init_eval P_ ((void));
extern void syms_of_eval P_ ((void));

/* Defined in editfns.c */
EXFUN (Fcurrent_message, 0);
EXFUN (Fgoto_char, 1);
EXFUN (Fpoint_min_marker, 0);
EXFUN (Fpoint_max_marker, 0);
EXFUN (Fpoint_min, 0);
EXFUN (Fpoint_max, 0);
EXFUN (Fpoint, 0);
EXFUN (Fpoint_marker, 0);
EXFUN (Fmark_marker, 0);
EXFUN (Fline_beginning_position, 1);
EXFUN (Fline_end_position, 1);
EXFUN (Ffollowing_char, 0);
EXFUN (Fprevious_char, 0);
EXFUN (Fchar_after, 1);
EXFUN (Finsert, MANY);
EXFUN (Finsert_and_inherit, MANY);
EXFUN (Finsert_before_markers, MANY);
EXFUN (Finsert_buffer_substring, 3);
EXFUN (Finsert_char, 3);
extern void insert1 P_ ((Lisp_Object));
EXFUN (Feolp, 0);
EXFUN (Feobp, 0);
EXFUN (Fbolp, 0);
EXFUN (Fbobp, 0);
EXFUN (Fformat, MANY);
EXFUN (Fmessage, MANY);
extern Lisp_Object format1 P_ ((/* char *, ... */));
extern Lisp_Object make_buffer_string P_ ((int, int, int));
EXFUN (Fbuffer_substring, 2);
EXFUN (Fbuffer_string, 0);
extern Lisp_Object save_excursion_save P_ ((void));
extern Lisp_Object save_restriction_save P_ ((void));
extern Lisp_Object save_excursion_restore P_ ((Lisp_Object));
extern Lisp_Object save_restriction_restore P_ ((Lisp_Object));
EXFUN (Fchar_to_string, 1);
EXFUN (Fdelete_region, 2);
EXFUN (Fnarrow_to_region, 2);
EXFUN (Fwiden, 0);
EXFUN (Fuser_login_name, 1);
EXFUN (Fsystem_name, 0);
EXFUN (Fcurrent_time, 0);
extern int clip_to_bounds P_ ((int, int, int));
extern Lisp_Object make_buffer_string P_ ((int, int, int));
extern Lisp_Object make_buffer_string_both P_ ((int, int, int, int, int));
extern void init_editfns P_ ((void));
extern void syms_of_editfns P_ ((void));
EXFUN (Fcurrent_message, 0);
extern Lisp_Object Vinhibit_field_text_motion;
EXFUN (Fconstrain_to_field, 5);
EXFUN (Ffield_string, 1);
EXFUN (Fdelete_field, 1);
EXFUN (Ffield_beginning, 2);
EXFUN (Ffield_end, 2);
EXFUN (Ffield_string_no_properties, 1);
extern void set_time_zone_rule P_ ((char *));

/* defined in buffer.c */
extern int mouse_face_overlay_overlaps P_ ((Lisp_Object));
extern void nsberror P_ ((Lisp_Object));
extern char *no_switch_window P_ ((Lisp_Object window));
EXFUN (Fset_buffer_multibyte, 1);
EXFUN (Foverlay_start, 1);
EXFUN (Foverlay_end, 1);
extern void adjust_overlays_for_insert P_ ((int, int));
extern void adjust_overlays_for_delete P_ ((int, int));
extern void fix_overlays_in_range P_ ((int, int));
extern void report_overlay_modification P_ ((Lisp_Object, Lisp_Object, int,
					     Lisp_Object, Lisp_Object, Lisp_Object));
extern int overlay_touches_p P_ ((int));
extern Lisp_Object Vbuffer_alist, Vinhibit_read_only;
EXFUN (Fget_buffer, 1);
EXFUN (Fget_buffer_create, 1);
EXFUN (Fset_buffer, 1);
EXFUN (set_buffer_if_live, 1);
EXFUN (Fbarf_if_buffer_read_only, 0);
EXFUN (Fcurrent_buffer, 0);
EXFUN (Fswitch_to_buffer, 2);
EXFUN (Fpop_to_buffer, 3);
EXFUN (Fother_buffer, 3);
EXFUN (Foverlay_get, 2);
EXFUN (Fbuffer_modified_p, 1);
EXFUN (Fset_buffer_modified_p, 1);
EXFUN (Fkill_buffer, 1);
EXFUN (Fkill_all_local_variables, 0);
EXFUN (Fbuffer_disable_undo, 1);
EXFUN (Fbuffer_enable_undo, 1);
EXFUN (Ferase_buffer, 0);
extern Lisp_Object Qoverlayp;
extern Lisp_Object get_truename_buffer P_ ((Lisp_Object));
extern struct buffer *all_buffers;
EXFUN (Fprevious_overlay_change, 1);
EXFUN (Fbuffer_file_name, 1);
extern void init_buffer_once P_ ((void));
extern void init_buffer P_ ((void));
extern void syms_of_buffer P_ ((void));
extern void keys_of_buffer P_ ((void));

/* defined in marker.c */

EXFUN (Fmarker_position, 1);
EXFUN (Fmarker_buffer, 1);
EXFUN (Fcopy_marker, 2);
EXFUN (Fset_marker, 3);
extern int marker_position P_ ((Lisp_Object));
extern int marker_byte_position P_ ((Lisp_Object));
extern void clear_charpos_cache P_ ((struct buffer *));
extern int charpos_to_bytepos P_ ((int));
extern int buf_charpos_to_bytepos P_ ((struct buffer *, int));
extern int buf_bytepos_to_charpos P_ ((struct buffer *, int));
extern void unchain_marker P_ ((Lisp_Object));
extern Lisp_Object set_marker_restricted P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
extern Lisp_Object set_marker_both P_ ((Lisp_Object, Lisp_Object, int, int));
extern Lisp_Object set_marker_restricted_both P_ ((Lisp_Object, Lisp_Object,
						   int, int));
extern void syms_of_marker P_ ((void));

/* Defined in fileio.c */

extern Lisp_Object Qfile_error;
EXFUN (Ffind_file_name_handler, 2);
EXFUN (Ffile_name_as_directory, 1);
EXFUN (Fmake_temp_name, 1);
EXFUN (Fexpand_file_name, 2);
EXFUN (Ffile_name_nondirectory, 1);
EXFUN (Fsubstitute_in_file_name, 1);
EXFUN (Ffile_symlink_p, 1);
EXFUN (Fverify_visited_file_modtime, 1);
EXFUN (Ffile_exists_p, 1);
EXFUN (Ffile_name_absolute_p, 1);
EXFUN (Fdirectory_file_name, 1);
EXFUN (Ffile_name_directory, 1);
extern Lisp_Object expand_and_dir_to_file P_ ((Lisp_Object, Lisp_Object));
EXFUN (Ffile_accessible_directory_p, 1);
EXFUN (Funhandled_file_name_directory, 1);
EXFUN (Ffile_directory_p, 1);
EXFUN (Fwrite_region, 7);
EXFUN (Ffile_readable_p, 1);
EXFUN (Ffile_executable_p, 1);
EXFUN (Fread_file_name, 5);
extern Lisp_Object close_file_unwind P_ ((Lisp_Object));
extern void report_file_error P_ ((char *, Lisp_Object));
extern int internal_delete_file P_ ((Lisp_Object));
extern void syms_of_fileio P_ ((void));
EXFUN (Fmake_temp_name, 1);
extern void init_fileio_once P_ ((void));
extern Lisp_Object make_temp_name P_ ((Lisp_Object, int));

/* Defined in abbrev.c */

extern Lisp_Object Vfundamental_mode_abbrev_table;
extern void syms_of_abbrev P_ ((void));

/* defined in search.c */
extern void shrink_regexp_cache P_ ((void));
EXFUN (Fstring_match, 3);
extern void restore_match_data P_ ((void));
EXFUN (Fmatch_data, 2);
EXFUN (Fset_match_data, 1);
EXFUN (Fmatch_beginning, 1);
EXFUN (Fmatch_end, 1);
EXFUN (Flooking_at, 1);
extern int fast_string_match P_ ((Lisp_Object, Lisp_Object));
extern int fast_c_string_match_ignore_case P_ ((Lisp_Object, char *));
extern int scan_buffer P_ ((int, int, int, int, int *, int));
extern int scan_newline P_ ((int, int, int, int, int, int));
extern int find_next_newline P_ ((int, int));
extern int find_next_newline_no_quit P_ ((int, int));
extern int find_before_next_newline P_ ((int, int, int));
extern void syms_of_search P_ ((void));

/* defined in minibuf.c */

extern Lisp_Object last_minibuf_string;
extern void choose_minibuf_frame P_ ((void));
extern int scmp P_ ((unsigned char *, unsigned char *, int));
EXFUN (Fcompleting_read, 8);
EXFUN (Fread_from_minibuffer, 7);
EXFUN (Fread_variable, 2);
EXFUN (Fread_buffer, 3);
EXFUN (Fread_minibuffer, 2);
EXFUN (Feval_minibuffer, 2);
EXFUN (Fread_string, 5);
EXFUN (Fread_no_blanks_input, 3);
extern Lisp_Object get_minibuffer P_ ((int));
extern void temp_echo_area_glyphs P_ ((char *));
extern void init_minibuf_once P_ ((void));
extern void syms_of_minibuf P_ ((void));
extern void keys_of_minibuf P_ ((void));

/* Defined in callint.c */

extern Lisp_Object Qminus, Qplus, Vcurrent_prefix_arg;
extern Lisp_Object Vcommand_history;
extern Lisp_Object Qcall_interactively, Qmouse_leave_buffer_hook;
EXFUN (Fcall_interactively, 3);
EXFUN (Fprefix_numeric_value, 1);
extern void syms_of_callint P_ ((void));

/* defined in casefiddle.c */

EXFUN (Fdowncase, 1);
EXFUN (Fupcase, 1);
EXFUN (Fcapitalize, 1);
EXFUN (Fupcase_region, 2);
EXFUN (Fupcase_initials, 1);
EXFUN (Fupcase_initials_region, 2);
extern void syms_of_casefiddle P_ ((void));
extern void keys_of_casefiddle P_ ((void));

/* defined in casetab.c */

EXFUN (Fset_case_table, 1);
EXFUN (Fset_standard_case_table, 1);
extern void init_casetab_once P_ ((void));
extern void syms_of_casetab P_ ((void));

/* defined in keyboard.c */

extern int echoing;
extern Lisp_Object echo_message_buffer;
extern struct kboard *echo_kboard;
extern void cancel_echoing P_ ((void));
extern Lisp_Object Qdisabled, QCfilter;
extern Lisp_Object Vtty_erase_char, Vhelp_form, Vtop_level;
extern int input_pending;
EXFUN (Fdiscard_input, 0);
EXFUN (Frecursive_edit, 0);
EXFUN (Ftop_level, 0);
EXFUN (Fcommand_execute, 4);
EXFUN (Finput_pending_p, 0);
extern Lisp_Object menu_bar_items P_ ((Lisp_Object));
extern Lisp_Object tool_bar_items P_ ((Lisp_Object, int *));
extern Lisp_Object Qvertical_scroll_bar;
extern void discard_mouse_events P_ ((void));
EXFUN (Fevent_convert_list, 1);
EXFUN (Fread_key_sequence, 5);
EXFUN (Fset_input_mode, 4);
extern int detect_input_pending P_ ((void));
extern int detect_input_pending_run_timers P_ ((int));
extern void safe_run_hooks P_ ((Lisp_Object));
extern void cmd_error_internal P_ ((Lisp_Object, char *));
extern Lisp_Object command_loop_1 P_ ((void));
extern Lisp_Object recursive_edit_1 P_ ((void));
extern void record_auto_save P_ ((void));
extern void init_keyboard P_ ((void));
extern void syms_of_keyboard P_ ((void));
extern void keys_of_keyboard P_ ((void));
extern char *push_key_description P_ ((unsigned int, char *, int));


/* defined in indent.c */
EXFUN (Fvertical_motion, 2);
EXFUN (Findent_to, 2);
EXFUN (Fcurrent_column, 0);
EXFUN (Fmove_to_column, 2);
extern int current_column P_ ((void));
extern void invalidate_current_column P_ ((void));
extern int indented_beyond_p P_ ((int, int, int));
extern void syms_of_indent P_ ((void));

/* defined in window.c */
extern Lisp_Object Qwindowp, Qwindow_live_p;
extern Lisp_Object Vwindow_list;
EXFUN (Fwindow_end, 2);
EXFUN (Fselected_window, 0);
EXFUN (Fnext_window, 3);
EXFUN (Fdelete_window, 1);
EXFUN (Fselect_window, 1);
EXFUN (Fset_window_buffer, 2);
EXFUN (Fwindow_buffer, 1);
EXFUN (Fget_buffer_window, 2);
EXFUN (Fsave_window_excursion, UNEVALLED);
EXFUN (Fsplit_window, 3);
EXFUN (Fset_window_configuration, 1);
EXFUN (Fcurrent_window_configuration, 1);
extern int compare_window_configurations P_ ((Lisp_Object, Lisp_Object, int));
EXFUN (Fcoordinates_in_window_p, 2);
EXFUN (Fwindow_at, 3);
EXFUN (Fpos_visible_in_window_p, 3);
extern void mark_window_cursors_off P_ ((struct window *));
extern int window_internal_height P_ ((struct window *));
extern int window_internal_width P_ ((struct window *));
EXFUN (Frecenter, 1);
EXFUN (Fscroll_other_window, 1);
EXFUN (Fset_window_start, 3);
extern void temp_output_buffer_show P_ ((Lisp_Object));
extern void replace_buffer_in_all_windows P_ ((Lisp_Object));
extern void init_window_once P_ ((void));
extern void init_window P_ ((void));
extern void syms_of_window P_ ((void));
extern void keys_of_window P_ ((void));

/* defined in frame.c */
extern Lisp_Object Qvisible;
extern void store_frame_param P_ ((struct frame *, Lisp_Object, Lisp_Object));
extern void store_in_alist P_ ((Lisp_Object *, Lisp_Object, Lisp_Object));
extern Lisp_Object do_switch_frame P_ ((Lisp_Object, int, int));
extern Lisp_Object get_frame_param P_ ((struct frame *, Lisp_Object));
extern Lisp_Object frame_buffer_predicate P_ ((Lisp_Object));
EXFUN (Fframep, 1);
EXFUN (Fselect_frame, 2);
EXFUN (Fselected_frame, 0);
EXFUN (Fwindow_frame, 1);
EXFUN (Fframe_root_window, 1);
EXFUN (Fframe_first_window, 1);
EXFUN (Fframe_selected_window, 1);
EXFUN (Fframe_list, 0);
EXFUN (Fnext_frame, 2);
EXFUN (Fdelete_frame, 2);
EXFUN (Fset_mouse_position, 3);
EXFUN (Fmake_frame_visible, 1);
EXFUN (Fmake_frame_invisible, 2);
EXFUN (Ficonify_frame, 1);
EXFUN (Fframe_visible_p, 1);
EXFUN (Fvisible_frame_list, 0);
EXFUN (Fframe_parameter, 2);
EXFUN (Fframe_parameters, 1);
EXFUN (Fmodify_frame_parameters, 2);
EXFUN (Fset_frame_height, 3);
EXFUN (Fset_frame_width, 3);
EXFUN (Fset_frame_size, 3);
EXFUN (Fset_frame_position, 3);
EXFUN (Fraise_frame, 1);
EXFUN (Fredirect_frame_focus, 2);
EXFUN (Fset_frame_selected_window, 2);
extern Lisp_Object frame_buffer_list P_ ((Lisp_Object));
extern void frames_discard_buffer P_ ((Lisp_Object));
extern void set_frame_buffer_list P_ ((Lisp_Object, Lisp_Object));
extern void frames_bury_buffer P_ ((Lisp_Object));
extern void syms_of_frame P_ ((void));
extern void keys_of_frame P_ ((void));

/* defined in emacs.c */
extern Lisp_Object decode_env_path P_ ((char *, char *));
extern Lisp_Object Vinvocation_name, Vinvocation_directory;
extern Lisp_Object Vinstallation_directory, empty_string;
EXFUN (Fkill_emacs, 1);
#if HAVE_SETLOCALE
void fixup_locale P_ ((void));
void synchronize_system_messages_locale P_ ((void));
void synchronize_system_time_locale P_ ((void));
#else
#define setlocale(category, locale)
#define fixup_locale()
#define synchronize_system_messages_locale()
#define synchronize_system_time_locale()
#endif
void shut_down_emacs P_ ((int, int, Lisp_Object));
/* Nonzero means don't do interactive redisplay and don't change tty modes */
extern int noninteractive;
/* Nonzero means don't do use window-system-specific display code */
extern int inhibit_window_system;
/* Nonzero means that a filter or a sentinel is running.  */
extern int running_asynch_code;

/* defined in process.c */
EXFUN (Fget_process, 1);
EXFUN (Fget_buffer_process, 1);
EXFUN (Fprocessp, 1);
EXFUN (Fprocess_status, 1);
EXFUN (Fkill_process, 2);
EXFUN (Fprocess_send_eof, 1);
EXFUN (Fwaiting_for_user_input_p, 0);
extern Lisp_Object Qprocessp;
extern void kill_buffer_processes P_ ((Lisp_Object));
extern int wait_reading_process_input P_ ((int, int, Lisp_Object, int));
extern void deactivate_process P_ ((Lisp_Object));
extern void add_keyboard_wait_descriptor P_ ((int));
extern void delete_keyboard_wait_descriptor P_ ((int));
extern void close_process_descs P_ ((void));
extern void status_notify P_ ((void));
extern int read_process_output P_ ((Lisp_Object, int));
extern void init_process P_ ((void));
extern void syms_of_process P_ ((void));

/* defined in callproc.c */
extern Lisp_Object Vexec_path, Vexec_suffixes,
                   Vexec_directory, Vdata_directory;
extern Lisp_Object Vdoc_directory;
EXFUN (Fcall_process, MANY);
extern int child_setup P_ ((int, int, int, char **, int, Lisp_Object));
extern void init_callproc_1 P_ ((void));
extern void init_callproc P_ ((void));
extern void set_process_environment P_ ((void));
extern void syms_of_callproc P_ ((void));

/* defined in doc.c */
extern Lisp_Object Vdoc_file_name;
EXFUN (Fsubstitute_command_keys, 1);
EXFUN (Fdocumentation, 2);
EXFUN (Fdocumentation_property, 3);
extern Lisp_Object read_doc_string P_ ((Lisp_Object));
extern Lisp_Object get_doc_string P_ ((Lisp_Object, int, int));
extern void syms_of_doc P_ ((void));
extern int read_bytecode_char P_ ((int));

/* defined in bytecode.c */
extern Lisp_Object Qbytecode;
EXFUN (Fbyte_code, 3);
extern void syms_of_bytecode P_ ((void));
extern struct byte_stack *byte_stack_list;
extern void mark_byte_stack P_ ((void));
extern void unmark_byte_stack P_ ((void));

/* defined in macros.c */
extern Lisp_Object Qexecute_kbd_macro;
EXFUN (Fexecute_kbd_macro, 2);
extern void init_macros P_ ((void));
extern void syms_of_macros P_ ((void));

/* defined in undo.c */
extern Lisp_Object Qinhibit_read_only;
EXFUN (Fundo_boundary, 0);
extern Lisp_Object truncate_undo_list P_ ((Lisp_Object, int, int));
extern void record_marker_adjustment P_ ((Lisp_Object, int));
extern void record_insert P_ ((int, int));
extern void record_delete P_ ((int, Lisp_Object));
extern void record_first_change P_ ((void));
extern void record_change P_ ((int, int));
extern void record_property_change P_ ((int, int, Lisp_Object, Lisp_Object,
					Lisp_Object));
extern void syms_of_undo P_ ((void));

/* defined in textprop.c */
extern Lisp_Object Qmodification_hooks;
extern Lisp_Object Qrear_nonsticky, Qfont, Qmouse_face;
extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks;
EXFUN (Fnext_property_change, 3);
EXFUN (Fnext_single_property_change, 4);
EXFUN (Fnext_single_char_property_change, 4);
EXFUN (Fprevious_single_property_change, 4);
EXFUN (Fget_text_property, 3);
EXFUN (Fput_text_property, 5);
EXFUN (Fset_text_properties, 4);
EXFUN (Ftext_property_not_all, 5);
EXFUN (Fprevious_char_property_change, 2);
EXFUN (Fnext_char_property_change, 2);
extern void report_interval_modification P_ ((Lisp_Object, Lisp_Object));
extern void syms_of_textprop P_ ((void));
extern Lisp_Object next_single_char_property_change P_ ((Lisp_Object,
							 Lisp_Object,
							 Lisp_Object,
							 Lisp_Object));
extern Lisp_Object set_text_properties P_ ((Lisp_Object, Lisp_Object,
					    Lisp_Object, Lisp_Object,
					    Lisp_Object));

/* defined in xmenu.c */
EXFUN (Fx_popup_menu, 2);
EXFUN (Fx_popup_dialog, 2);
extern void syms_of_xmenu P_ ((void));
extern int popup_activated_flag;

/* defined in sysdep.c */
extern void stuff_char P_ ((char c));
extern void init_sigio P_ ((int));
extern void request_sigio P_ ((void));
extern void unrequest_sigio P_ ((void));
extern void reset_sys_modes P_ ((void));
extern void sys_subshell P_ ((void));
extern void sys_suspend P_ ((void));
extern void discard_tty_input P_ ((void));
extern void init_sys_modes P_ ((void));
extern void reset_sys_modes P_ ((void));
extern void get_frame_size P_ ((int *, int *));
extern void wait_for_termination P_ ((int));
extern void flush_pending_output P_ ((int));
extern void child_setup_tty P_ ((int));
extern void setup_pty P_ ((int));
extern int set_window_size P_ ((int, int, int));
extern void create_process P_ ((Lisp_Object, char **, Lisp_Object));
extern int tabs_safe_p P_ ((void));
extern void init_baud_rate P_ ((void));
extern int emacs_open P_ ((char *, int, int));
extern int emacs_close P_ ((int));
extern int emacs_read P_ ((int, char *, unsigned int));
extern int emacs_write P_ ((int, char *, unsigned int));

/* defined in filelock.c */
EXFUN (Funlock_buffer, 0);
EXFUN (Ffile_locked_p, 1);
extern void unlock_all_files P_ ((void));
extern void lock_file P_ ((Lisp_Object));
extern void unlock_file P_ ((Lisp_Object));
extern void unlock_buffer P_ ((struct buffer *));
extern void syms_of_filelock P_ ((void));
extern void init_filelock P_ ((void));

/* Defined in sound.c */
extern void syms_of_sound P_ ((void));
extern void init_sound P_ ((void));

/* Defined in category.c */
extern void init_category_once P_ ((void));
extern void syms_of_category P_ ((void));

/* Defined in ccl.c */
extern void syms_of_ccl P_ ((void));

/* Defined in dired.c */
EXFUN (Ffile_attributes, 1);
extern void syms_of_dired P_ ((void));

/* Defined in mocklisp.c */
extern void syms_of_mocklisp P_ ((void));

/* Defined in term.c */
extern void syms_of_term P_ ((void));
extern void fatal () NO_RETURN;

#ifdef HAVE_X_WINDOWS
/* Defined in fontset.c */
extern void syms_of_fontset P_ ((void));
EXFUN (Fset_fontset_font, 4);
#endif

/* Defined in xfaces.c */
extern void syms_of_xfaces P_ ((void));

/* Defined in getloadavg.c */
extern int getloadavg P_ ((double *, int));

#ifdef HAVE_X_WINDOWS
/* Defined in xfns.c */
extern void syms_of_xfns P_ ((void));
extern void init_xfns P_ ((void));
extern Lisp_Object Vx_resource_name;
EXFUN (Fxw_display_color_p, 1);
#endif /* HAVE_X_WINDOWS */

/* Defined in xselect.c */
extern void syms_of_xselect P_ ((void));

/* Defined in xterm.c */
extern void syms_of_xterm P_ ((void));

/* Defined in getloadavg.c */
extern int getloadavg P_ ((double [], int));

/* Nonzero means Emacs has already been initialized.
   Used during startup to detect startup of dumped Emacs.  */
extern int initialized;

extern int immediate_quit;	    /* Nonzero means ^G can quit instantly */

extern POINTER_TYPE *xmalloc P_ ((size_t));
extern POINTER_TYPE *xrealloc P_ ((POINTER_TYPE *, size_t));
extern void xfree P_ ((POINTER_TYPE *));

extern char *xstrdup P_ ((char *));

#ifndef USE_CRT_DLL
extern char *egetenv P_ ((char *));
#endif

/* Set up the name of the machine we're running on.  */
extern void init_system_name P_ ((void));

/* Some systems (e.g., NT) use a different path separator than Unix,
   in addition to a device separator.  Default the path separator
   to '/', and don't test for a device separator in IS_ANY_SEP.  */

#ifdef WINDOWSNT
extern Lisp_Object Vdirectory_sep_char;
#endif

#ifndef DIRECTORY_SEP
#define DIRECTORY_SEP '/'
#endif
#ifndef IS_DIRECTORY_SEP
#define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
#endif
#ifndef IS_DEVICE_SEP
#ifndef DEVICE_SEP
#define IS_DEVICE_SEP(_c_) 0
#else
#define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
#endif
#endif
#ifndef IS_ANY_SEP
#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
#endif

#ifdef SWITCH_ENUM_BUG
#define SWITCH_ENUM_CAST(x) ((int)(x))
#else
#define SWITCH_ENUM_CAST(x) (x)
#endif

/* Loop over Lisp list LIST.  Signal an error if LIST is not a proper
   list, or if it contains circles.
   
   HARE and TORTOISE should be the names of Lisp_Object variables, and
   N should be the name of an EMACS_INT variable declared in the
   function where the macro is used.  Each nested loop should use
   its own variables.

   In the loop body, HARE is set to each cons of LIST, and N is the
   length of the list processed so far.  */

#define LIST_END_P(list, obj)				\
  (NILP (obj)						\
   ? 1							\
   : (CONSP (obj)					\
      ? 0						\
      : (wrong_type_argument (Qlistp, (list), 0)), 1))

#define FOREACH(hare, list, tortoise, n)		\
  for (tortoise = hare = (list), n = 0;			\
       !LIST_END_P (list, hare);			\
       (hare = XCDR (hare), ++n,			\
	((n & 1) != 0					\
	 ? (tortoise = XCDR (tortoise),			\
	    (EQ (hare, tortoise)			\
	     && (circular_list_error ((list)), 1)))	\
	 : 0)))

/* The ubiquitous min and max macros.  */

#ifdef max
#undef max
#undef min
#endif
#define min(a, b)	((a) < (b) ? (a) : (b))
#define max(a, b)	((a) > (b) ? (a) : (b))

/* Return a fixnum or float, depending on whether VAL fits in a Lisp
   fixnum.  */

#define make_fixnum_or_float(val) \
   (FIXNUM_OVERFLOW_P (val) ? make_float (val) : make_number ((int)(val)))