testit('tanh(0)', math.tanh(0), 0)

testit('tanh(1)+tanh(-1)', math.tanh(1)+math.tanh(-1), 0)

-print 'exceptions' # oooooh, *this* is a x-platform gamble! good luck

+# RED_FLAG 16-Oct-2000 Tim

+# While 2.0 is more consistent about exceptions than previous releases, it

+# still fails this part of the test on some platforms. For now, we only

+# *run* test_exceptions() in verbose mode, so that this isn't normally

- x = math.exp(-1000000000)

- # mathmodule.c is failing to weed out underflows from libm, or

- # we've got an fp format with huge dynamic range

- raise TestFailed("underflowing exp() should not have rasied an exception")

- raise TestFailed("underflowing exp() should have returned 0")

+ x = math.exp(-1000000000)

+ # mathmodule.c is failing to weed out underflows from libm, or

+ # we've got an fp format with huge dynamic range

+ raise TestFailed("underflowing exp() should not have raised "

+ raise TestFailed("underflowing exp() should have returned 0")

-# If this fails, probably using a strict IEEE-754 conforming libm, and x

-# is +Inf afterwards. But Python wants overflows detected by default.

- x = math.exp(1000000000)

- raise TestFailed("overflowing exp() didn't trigger OverflowError")

+ # If this fails, probably using a strict IEEE-754 conforming libm, and x

+ # is +Inf afterwards. But Python wants overflows detected by default.

+ x = math.exp(1000000000)

+ raise TestFailed("overflowing exp() didn't trigger OverflowError")

-# If this fails, it could be a puzzle. One odd possibility is that

-# mathmodule.c's CHECK() macro is getting confused while comparing

-# Inf (HUGE_VAL) to a NaN, and artificially setting errno to ERANGE

-# as a result (and so raising OverflowError instead).

- raise TestFailed("sqrt(-1) didn't raise ValueError")

+ # If this fails, it could be a puzzle. One odd possibility is that

+ # mathmodule.c's CHECK() macro is getting confused while comparing

+ # Inf (HUGE_VAL) to a NaN, and artificially setting errno to ERANGE

+ # as a result (and so raising OverflowError instead).

+ raise TestFailed("sqrt(-1) didn't raise ValueError")