1 // RUN: %clang_cc1 -Weverything -fsyntax-only -verify %s
2
3 // Test that the pragma overrides command line option -Weverythings,
4
5 // a diagnostic with DefaultIgnore. This is part of a group 'unused-macro'
6 // but -Weverything forces it
7 #define UNUSED_MACRO1 1 // expected-warning{{macro is not used}}
8
foo()9 void foo() // expected-warning {{no previous prototype for function}}
10 {
11 // A diagnostic without DefaultIgnore, and not part of a group.
12 (void) L'ab'; // expected-warning {{extraneous characters in character constant ignored}}
13
14 #pragma clang diagnostic warning "-Weverything" // Should not change anyhting.
15 #define UNUSED_MACRO2 1 // expected-warning{{macro is not used}}
16 (void) L'cd'; // expected-warning {{extraneous characters in character constant ignored}}
17
18 #pragma clang diagnostic ignored "-Weverything" // Ignore warnings now.
19 #define UNUSED_MACRO2 1 // no warning
20 (void) L'ef'; // no warning here
21
22 #pragma clang diagnostic warning "-Weverything" // Revert back to warnings.
23 #define UNUSED_MACRO3 1 // expected-warning{{macro is not used}}
24 (void) L'gh'; // expected-warning {{extraneous characters in character constant ignored}}
25
26 #pragma clang diagnostic error "-Weverything" // Give errors now.
27 #define UNUSED_MACRO4 1 // expected-error{{macro is not used}}
28 (void) L'ij'; // expected-error {{extraneous characters in character constant ignored}}
29 }
30