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 
10 #include "Inputs/bad-header-guard.h"
11 // CHECK: In file included from {{.*}}header.cpp:{{[0-9]*}}:
12 // 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
13 // CHECK: {{^}}#ifndef bad_header_guard
14 // CHECK: {{^}}        ^~~~~~~~~~~~~~~~
15 // CHECK: {{.*}}bad-header-guard.h:2:9: note: 'bad_guard' is defined here; did you mean 'bad_header_guard'?
16 // CHECK: {{^}}#define bad_guard
17 // CHECK: {{^}}        ^~~~~~~~~
18 // CHECK: {{^}}        bad_header_guard
19 
20 #include "Inputs/multiple.h"
21 #include "Inputs/multiple.h"
22 #include "Inputs/multiple.h"
23 #include "Inputs/multiple.h"
24 // CHECK: In file included from {{.*}}header.cpp:{{[0-9]*}}:
25 // CHECK: {{.*}}multiple.h:1:9: warning: 'multiple' is used as a header guard here, followed by #define of a different macro
26 // CHECK: {{^}}#ifndef multiple
27 // CHECK: {{^}}        ^~~~~~~~
28 // CHECK: {{.*}}multiple.h:2:9: note: 'multi' is defined here; did you mean 'multiple'?
29 // CHECK: {{^}}#define multi
30 // CHECK: {{^}}        ^~~~~
31 // CHECK: {{^}}        multiple
32 
33 // CHECK: 2 warnings generated.
34