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      1 // RUN: %clang_cc1 -fms-extensions -std=c++11 -E %s -fuse-line-directives | 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)
     18 B(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;
     37 int 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