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LibC: Some calloc() and realloc() improvements (#3108)

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If the space cannot be allocated, the original memory block shall remain
unchanged and the function should return nullptr.

Also add a function attribute and some null checks.
This commit is contained in:
Muhammad Zahalqa 2020-08-13 20:14:28 +03:00 • committed by Andreas Kling
parent dcfc54d767
commit 11b9e8b366
2 changed files with 10 additions and 4 deletions
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2
Libraries/LibC/stdlib.h
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@ -42,7 +42,7 @@ __attribute__((malloc)) __attribute__((alloc_size(1))) void* malloc(size_t);
__attribute__((malloc)) __attribute__((alloc_size(1, 2))) void* calloc(size_t nmemb, size_t);
size_t malloc_size(void*);
void free(void*);
void* realloc(void* ptr, size_t);
__attribute__((alloc_size(2))) void* realloc(void* ptr, size_t);
char* getenv(const char* name);
int putenv(char*);
int unsetenv(const char*);