ossl_isupper
if (((*s == '/') && (ossl_isupper(s[1]) && ((s[2] == '=') || (ossl_isupper(s[2]) && (s[3] == '='))))) || (*s == '\0')) {
int ossl_isupper(int c);
&& TEST_int_eq(isupper(n) != 0, ossl_isupper(n) != 0)