pragma-operators.cpp revision 2ee042dee9f7693665e28463955401905474a284 
1// RUN: %clang_cc1 -fms-extensions -std=c++11 -E %s | FileCheck %s
2
3// Test that we properly expand the C99 _Pragma and Microsoft __pragma
4// into #pragma directives, with newlines where needed. <rdar://problem/8412013>
5
6// CHECK: #line
7// CHECK: #pragma warning(push)
8// CHECK: extern "C" {
9// CHECK: #line
10// CHECK: #pragma warning(push)
11// CHECK:  int foo() { return 0; } }
12// CHECK: #pragma warning(pop)
13#define A(X) extern "C" { __pragma(warning(push)) \
14  int X() { return 0; } \
15}
16#define B(X) A(X)
17#pragma warning(push)
18B(foo)
19#pragma warning(pop)
20
21#define pragma_L _Pragma(L"GCC diagnostic push")
22#define pragma_u8 _Pragma(u8"system_header")
23#define pragma_u _Pragma(u"GCC diagnostic pop")
24#define pragma_U _Pragma(U"comment(lib, \"libfoo\")")
25#define pragma_R _Pragma(R"(clang diagnostic ignored "-Wunused")")
26#define pragma_UR _Pragma(UR"(clang diagnostic error "-Wunused")")
27#define pragma_hello _Pragma(u8R"x(message R"y("Hello", world!)y")x")
28// CHECK: int n =
29// CHECK: #pragma GCC diagnostic push
30// CHECK: #pragma system_header
31// CHECK: #pragma GCC diagnostic pop
32// CHECK: #pragma comment(lib, "libfoo")
33// CHECK: #pragma clang diagnostic ignored "-Wunused"
34// CHECK: #pragma clang diagnostic error "-Wunused"
35// CHECK: #pragma message("\042Hello\042, world!")
36// CHECK: 0;
37int n = pragma_L pragma_u8 pragma_u pragma_U pragma_R pragma_UR pragma_hello 0;
38
39#pragma warning(disable : 1 2L 3U ; error : 4 5 6 ; suppress : 7 8 9)
40// CHECK: #pragma warning(disable: 1 2 3)
41// CHECK: #line [[@LINE-2]]
42// CHECK: #pragma warning(error: 4 5 6)
43// CHECK: #line [[@LINE-4]]
44// CHECK: #pragma warning(suppress: 7 8 9)
45
46#pragma warning(push)
47#pragma warning(push, 1L)
48#pragma warning(push, 4U)
49#pragma warning(push, 0x1)
50#pragma warning(push, 03)
51#pragma warning(push, 0b10)
52#pragma warning(push, 1i8)
53// CHECK: #pragma warning(push)
54// CHECK: #pragma warning(push, 1)
55// CHECK: #pragma warning(push, 4)
56// CHECK: #pragma warning(push, 1)
57// CHECK: #pragma warning(push, 3)
58// CHECK: #pragma warning(push, 2)
59// CHECK: #pragma warning(push, 1)
60