C言語ならアタシに聞きなさい<37>

125 は何も試してないだろ。黙れ。

char *strchr_a(const char *str, int c)
{
  c = (char)c;
  while (*str && *str != c) ++str;
  if (*str == c) return (char *)str;
  return NULL;
}
char *strchr_b(const char *str, int c)
{
  while (*str && *str != c) ++str;
  if (*str == c) return (char *)str;
  return NULL;
}
int main()
{
  const char * str = "abcde \xFF abcde";
  printf("str = %p\n", str);
  printf("strchr_a = %p\n", strchr_a(str, '\xFF'));
  printf("strchr_b = %p\n", strchr_b(str, '\xFF'));
  getchar();
  return 0;
}