| // RUN: %clang_cc1 -fsyntax-only %s -verify |
| #ifndef __has_warning |
| #error Should have __has_warning |
| #endif |
| |
| #if __has_warning("not valid") // expected-warning {{__has_warning expected option name}} |
| #endif |
| |
| // expected-warning@+2 {{Should have -Wparentheses}} |
| #if __has_warning("-Wparentheses") |
| #warning Should have -Wparentheses |
| #endif |
| |
| #if __has_warning(-Wfoo) // expected-error {{builtin warning check macro requires a parenthesized string}} |
| #endif |
| |
| // expected-warning@+3 {{Not a valid warning flag}} |
| #if __has_warning("-Wnot-a-valid-warning-flag-at-all") |
| #else |
| #warning Not a valid warning flag |
| #endif |
