src/search/lsearch.c

   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