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LibC: Some calloc() and realloc() improvements (#3108)
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.
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2 changed files with 10 additions and 4 deletions
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@ -42,7 +42,7 @@ __attribute__((malloc)) __attribute__((alloc_size(1))) void* malloc(size_t);
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__attribute__((malloc)) __attribute__((alloc_size(1, 2))) void* calloc(size_t nmemb, size_t);
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size_t malloc_size(void*);
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void free(void*);
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void* realloc(void* ptr, size_t);
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__attribute__((alloc_size(2))) void* realloc(void* ptr, size_t);
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char* getenv(const char* name);
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int putenv(char*);
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int unsetenv(const char*);
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