src/libstddjb/byte_chr.c


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/* ISC license. */

#include <sys/types.h>
#include <string.h>
#include <skalibs/bytestr.h>

size_t byte_chr (char const *s, size_t n, int c)
{
  register void *p = memchr(s, c, n) ;
  return p ? (char *)p - s : n ;
}