1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-undef %s
2// rdar://2362963
3
4#if FOO    // ok.
5#endif
6
7#pragma GCC diagnostic warning "-Wundef"
8
9#if FOO    // expected-warning {{'FOO' is not defined}}
10#endif
11
12#pragma GCC diagnostic ignored "-Wun" "def"
13
14#if FOO    // ok.
15#endif
16
17#pragma GCC diagnostic error "-Wundef"
18
19#if FOO    // expected-error {{'FOO' is not defined}}
20#endif
21
22
23#define foo error
24#pragma GCC diagnostic foo "-Wundef"  // expected-warning {{pragma diagnostic expected 'error', 'warning', 'ignored', 'fatal', 'push', or 'pop'}}
25
26#pragma GCC diagnostic error 42  // expected-warning {{unexpected token in pragma diagnostic}}
27
28#pragma GCC diagnostic error "-Wundef" 42  // expected-warning {{unexpected token in pragma diagnostic}}
29#pragma GCC diagnostic error "invalid-name"  // expected-warning {{pragma diagnostic expected option name (e.g. "-Wundef")}}
30
31#pragma GCC diagnostic error "-Winvalid-name"  // expected-warning {{unknown warning group '-Winvalid-name', ignored}}
32
33