Function strcmp

include/string.h:312–323

#  if __has_builtin(__builtin_strcmp)
builtin_function(strcmp) int strcmp(FAR const char *s1,
                                    FAR const char *s2)
{
  if (__builtin_constant_p(s1) && __builtin_constant_p(s2))
    {
      return __builtin_strcmp(s1, s2);
    }
  else
    {
      return __orig_strcmp(s1, s2);
    }
}
#  endif

#  if __has_builtin(__builtin_strcpy)