github.com/afumu/libc@v0.0.6/musl/src/search/lsearch.c (about)

     1  #include <search.h>
     2  #include <string.h>
     3  
     4  void *lsearch(const void *key, void *base, size_t *nelp, size_t width,
     5  	int (*compar)(const void *, const void *))
     6  {
     7  	char (*p)[width] = base;
     8  	size_t n = *nelp;
     9  	size_t i;
    10  
    11  	for (i = 0; i < n; i++)
    12  		if (compar(key, p[i]) == 0)
    13  			return p[i];
    14  	*nelp = n+1;
    15  	return memcpy(p[n], key, width);
    16  }
    17  
    18  void *lfind(const void *key, const void *base, size_t *nelp,
    19  	size_t width, int (*compar)(const void *, const void *))
    20  {
    21  	char (*p)[width] = (void *)base;
    22  	size_t n = *nelp;
    23  	size_t i;
    24  
    25  	for (i = 0; i < n; i++)
    26  		if (compar(key, p[i]) == 0)
    27  			return p[i];
    28  	return 0;
    29  }
    30  
    31