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Remove MALLOC_ZERO_RETURNS_NULL.

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Martin v. Löwis 2002-11-23 09:13:40 +00:00
parent 19cf4ee69d
commit 39f59b089d
6 changed files with 5 additions and 110 deletions
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13
Include/pymem.h
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@ -62,16 +62,11 @@ PyAPI_FUNC(void) PyMem_Free(void *);
#else /* ! PYMALLOC_DEBUG */
#ifdef MALLOC_ZERO_RETURNS_NULL
/* PyMem_MALLOC(0) means malloc(1). Some systems would return NULL
for malloc(0), which would be treated as an error. Some platforms
would return a pointer with no memory behind it, which would break
pymalloc. To solve these problems, allocate an extra byte. */
#define PyMem_MALLOC(n) malloc((n) ? (n) : 1)
#else
#define PyMem_MALLOC malloc
#endif
/* Caution: whether MALLOC_ZERO_RETURNS_NULL is #defined has nothing to
do with whether platform realloc(non-NULL, 0) normally frees the memory
or returns NULL. Rather than introduce yet another config variation,
just make a realloc to 0 bytes act as if to 1 instead. */
#define PyMem_REALLOC(p, n) realloc((p), (n) ? (n) : 1)
#endif /* PYMALLOC_DEBUG */