1// Test that -Wsystem-headers works with default and custom mappings like -Werror.
2// Keep run lines at the bottom for line number stability.
3
4#ifdef IS_SYSHEADER
5#pragma clang system_header
6
7int f() { return (int)0; } // Use the old-style-cast warning as an arbitrary "ordinary" diagnostic for the purpose of testing.
8
9#warning "custom message"
10
11#if defined(A) || defined(B)
12// expected-warning@9 {{"custom message"}}
13#elif defined(C)
14// expected-warning@7 {{use of old-style cast}}
15// expected-warning@9 {{"custom message"}}
16#elif defined(D)
17// expected-error@7 {{use of old-style cast}}
18// expected-error@9 {{"custom message"}}
19#elif defined(E)
20// expected-error@7 {{use of old-style cast}}
21// expected-warning@9 {{"custom message"}}
22#endif
23
24#else
25#define IS_SYSHEADER
26#include __FILE__
27#endif
28
29// RUN: %clang_cc1 -verify -fsyntax-only -DA %s
30// RUN: %clang_cc1 -verify -fsyntax-only -DB -Wold-style-cast %s
31// RUN: %clang_cc1 -verify -fsyntax-only -DC -Wold-style-cast -Wsystem-headers %s
32// RUN: %clang_cc1 -verify -fsyntax-only -DD -Wold-style-cast -Wsystem-headers -Werror %s
33// RUN: %clang_cc1 -verify -fsyntax-only -DE -Wold-style-cast -Wsystem-headers -Werror=old-style-cast %s
34