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(memmove): Add prototypes. (MALLOC_MEMMOVE): Define. (chunk_realloc): Use it instead of MALLOC_COPY if source and destination might overlap.

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This commit is contained in:
Ulrich Drepper
2000-12-27 23:27:22 +00:00
parent de149cdbaf
commit 5fba3e5e3c
1 changed files with 5 additions and 0 deletions
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5
malloc/malloc.c
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@ -415,9 +415,11 @@ extern "C" {
#if __STD_C #if __STD_C
void* memset(void*, int, size_t); void* memset(void*, int, size_t);
void* memcpy(void*, const void*, size_t); void* memcpy(void*, const void*, size_t);
void* memmove(void*, const void*, size_t);
#else #else
Void_t* memset(); Void_t* memset();
Void_t* memcpy(); Void_t* memcpy();
Void_t* memmove();
#endif #endif
#endif #endif
@ -462,6 +464,9 @@ do { \
} else memcpy(dest, src, mcsz); \ } else memcpy(dest, src, mcsz); \
} while(0) } while(0)
#define MALLOC_MEMMOVE(dest,src,nbytes) \
memmove(dest, src, mcsz)
#else /* !USE_MEMCPY */ #else /* !USE_MEMCPY */
/* Use Duff's device for good zeroing/copying performance. */ /* Use Duff's device for good zeroing/copying performance. */