Function cJSON_strcasecmp

lib/cJSON.c:115–134

case insensitive strcmp */

/* case insensitive strcmp */
static int cJSON_strcasecmp(const unsigned char *s1, const unsigned char *s2)
{
    if (!s1)
    {
        return (s1 == s2) ? 0 : 1; /* both NULL? */
    }
    if (!s2)
    {
        return 1;
    }
    for(; tolower(*s1) == tolower(*s2); ++s1, ++s2)
    {
        if (*s1 == '\0')
        {
            return 0;
        }
    }

    return tolower(*s1) - tolower(*s2);
}

#if defined(__GNUC__) || defined(__clang__)
#define CJSON_TLS __thread