1// RUN: %clang_cc1 -fsyntax-only -Wno-header-guard %s
2// RUN: %clang_cc1 -fsyntax-only -Wheader-guard %s 2>&1 | FileCheck %s
3
4#include "Inputs/good-header-guard.h"
5#include "Inputs/no-define.h"
6#include "Inputs/different-define.h"
7#include "Inputs/out-of-order-define.h"
8#include "Inputs/tokens-between-ifndef-and-define.h"
9#include "Inputs/unlikely-to-be-header-guard.h"
10
11#include "Inputs/bad-header-guard.h"
12// CHECK: In file included from {{.*}}header.cpp:{{[0-9]*}}:
13// CHECK: {{.*}}bad-header-guard.h:1:9: warning: 'bad_header_guard' is used as a header guard here, followed by #define of a different macro
14// CHECK: {{^}}#ifndef bad_header_guard
15// CHECK: {{^}}        ^~~~~~~~~~~~~~~~
16// CHECK: {{.*}}bad-header-guard.h:2:9: note: 'bad_guard' is defined here; did you mean 'bad_header_guard'?
17// CHECK: {{^}}#define bad_guard
18// CHECK: {{^}}        ^~~~~~~~~
19// CHECK: {{^}}        bad_header_guard
20
21#include "Inputs/bad-header-guard-defined.h"
22// CHECK: In file included from {{.*}}header.cpp:{{[0-9]*}}:
23// CHECK: {{.*}}bad-header-guard-defined.h:1:2: warning: 'foo' is used as a header guard here, followed by #define of a different macro
24// CHECK: {{^}}#if !defined(foo)
25// CHECK: {{^}} ^~
26// CHECK: {{.*}}bad-header-guard-defined.h:2:9: note: 'goo' is defined here; did you mean 'foo'?
27// CHECK: {{^}}#define goo
28// CHECK: {{^}}        ^~~
29// CHECK: {{^}}        foo
30
31#include "Inputs/multiple.h"
32#include "Inputs/multiple.h"
33#include "Inputs/multiple.h"
34#include "Inputs/multiple.h"
35// CHECK: In file included from {{.*}}header.cpp:{{[0-9]*}}:
36// CHECK: {{.*}}multiple.h:1:9: warning: 'multiple' is used as a header guard here, followed by #define of a different macro
37// CHECK: {{^}}#ifndef multiple
38// CHECK: {{^}}        ^~~~~~~~
39// CHECK: {{.*}}multiple.h:2:9: note: 'multi' is defined here; did you mean 'multiple'?
40// CHECK: {{^}}#define multi
41// CHECK: {{^}}        ^~~~~
42// CHECK: {{^}}        multiple
43
44// CHECK: 3 warnings generated.
45