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Warn about unused results with bsearch().

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This function has no side-effects, and the return value is the whole point.

Change-Id: Ibb9143c6a3c4089bfd6402c1c580ef76ce0f5d27
This commit is contained in:
Elliott Hughes 2024-05-31 17:33:33 +00:00
parent 3cd51b749d
commit d4c54b4448
1 changed files with 8 additions and 1 deletions
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9
libc/include/stdlib.h
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@ -105,7 +105,14 @@ __wur char* _Nullable realpath(const char* _Nonnull __path, char* _Nullable __re
*/
int system(const char* _Nonnull __command);
void* _Nullable bsearch(const void* _Nonnull __key, const void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nonnull __lhs, const void* _Nonnull __rhs));
/**
* [bsearch(3)](http://man7.org/linux/man-pages/man3/bsearch.3.html) searches
* a sorted array.
*
* Returns a pointer to a matching item on success,
* or NULL if no matching item is found.
*/
__wur void* _Nullable bsearch(const void* _Nonnull __key, const void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nonnull __lhs, const void* _Nonnull __rhs));
void qsort(void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nullable __lhs, const void* _Nullable __rhs));