File: str_chr.c

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#include "str.h"

size_t str_chr(const char *in, char needle) {
  register const char* t=in;
  register const char c=needle;
  for (;;) {
    if (!*t || *t==c) break; ++t;
    if (!*t || *t==c) break; ++t;
    if (!*t || *t==c) break; ++t;
    if (!*t || *t==c) break; ++t;
  }
  return t-in;
}