If you don't like either of these options, you can define
CORRUPTION_ERROR_ACTION and USAGE_ERROR_ACTION to do anything
- else. And if
if you are sure that your program using malloc has
+ else. And if you are sure that your program using malloc has
no errors or vulnerabilities, you can define INSECURE to 1,
which might (or might not) provide a small performance improvement.
of the same size are arranged in a circularly-linked list, with only
the oldest chunk (the next to be used, in our FIFO ordering)
actually in the tree. (Tree members are distinguished by a non-null
- parent pointer.) If a chunk with the same size a
n an existing node
+ parent pointer.) If a chunk with the same size a an existing node
is inserted, it is linked off the existing node using pointers that
work in the same way as fd/bk pointers of small chunks.
Each tree contains a power of 2 sized range of chunk sizes (the
- smallest is 0x100 <= x < 0x180), which is
is divided in half at each
+ smallest is 0x100 <= x < 0x180), which is divided in half at each
tree level, with the chunks in the smaller half of the range (0x100
<= x < 0x140 for the top nose) in the left subtree and the larger
half (0x140 <= x < 0x180) in the right subtree. This is, of course,
1. A call to MORECORE that can normally contiguously extend memory.
(disabled if not MORECORE_CONTIGUOUS or not HAVE_MORECORE or
or main space is mmapped or a previous contiguous call failed)
+ main space is mmapped or a previous contiguous call failed)
2. A call to MMAP new space (disabled if not HAVE_MMAP).
Note that under the default settings, if MORECORE is unable to
fulfill a request, and HAVE_MMAP is true, then mmap is
structure of old version, but most details differ.)