PostgreSQL Source Code: src/port/bsearch_arg.c Source File (original) (raw)
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36#include "c.h"
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54void *
56 size_t nmemb, size_t size,
57 int (*compar) (const void *, const void *, void *),
58 void *arg)
59{
60 const char *base = (const char *) base0;
61 size_t lim;
63 const void *p;
64
65 for (lim = nmemb; lim != 0; lim >>= 1)
66 {
67 p = base + (lim >> 1) * size;
69 if (cmp == 0)
70 return (void *) p;
71 if (cmp > 0)
72 {
73 base = (const char *) p + size;
74 lim--;
75 }
76 }
77 return (NULL);
78}
void * bsearch_arg(const void *key, const void *base0, size_t nmemb, size_t size, int(*compar)(const void *, const void *, void *), void *arg)
static int cmp(const chr *x, const chr *y, size_t len)