24037c37b6
Clang already supports the pragma prefixed by "GCC" or "clang". MSVC has more recently added support for the pragma, but without any prefix; see https://devblogs.microsoft.com/cppblog/broken-warnings-theory/#external-headers Differential revision: https://reviews.llvm.org/D104770
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
// RUN: %clang_cc1 -fms-extensions -std=c++11 -E %s -fuse-line-directives | FileCheck %s
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// Test that we properly expand the C99 _Pragma and Microsoft __pragma
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// into #pragma directives, with newlines where needed. <rdar://problem/8412013>
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// CHECK: #line
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// CHECK: #pragma warning(push)
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// CHECK: extern "C" {
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// CHECK: #line
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// CHECK: #pragma warning(push)
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// CHECK: int foo() { return 0; } }
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// CHECK: #pragma warning(pop)
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#define A(X) extern "C" { __pragma(warning(push)) \
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int X() { return 0; } \
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}
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#define B(X) A(X)
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#pragma warning(push)
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B(foo)
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#pragma warning(pop)
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#define pragma_L _Pragma(L"GCC diagnostic push")
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#define pragma_u8 _Pragma(u8"pack(1)")
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#define pragma_u _Pragma(u"GCC diagnostic pop")
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#define pragma_U _Pragma(U"comment(lib, \"libfoo\")")
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#define pragma_R _Pragma(R"(clang diagnostic ignored "-Wunused")")
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#define pragma_UR _Pragma(UR"(clang diagnostic error "-Wunused")")
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#define pragma_hello _Pragma(u8R"x(message R"y("Hello", world!)y")x")
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// CHECK: int n =
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// CHECK: #pragma GCC diagnostic push
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// CHECK: #pragma pack(1)
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// CHECK: #pragma GCC diagnostic pop
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// CHECK: #pragma comment(lib, "libfoo")
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// CHECK: #pragma clang diagnostic ignored "-Wunused"
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// CHECK: #pragma clang diagnostic error "-Wunused"
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// CHECK: #pragma message("\042Hello\042, world!")
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// CHECK: 0;
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int n = pragma_L pragma_u8 pragma_u pragma_U pragma_R pragma_UR pragma_hello 0;
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#pragma warning(disable : 1 2L 3U ; error : 4 5 6 ; suppress : 7 8 9)
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// CHECK: #pragma warning(disable: 1 2 3)
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// CHECK: #line [[@LINE-2]]
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// CHECK: #pragma warning(error: 4 5 6)
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// CHECK: #line [[@LINE-4]]
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// CHECK: #pragma warning(suppress: 7 8 9)
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#pragma warning(push)
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#pragma warning(push, 1L)
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#pragma warning(push, 4U)
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#pragma warning(push, 0x1)
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#pragma warning(push, 03)
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#pragma warning(push, 0b10)
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#pragma warning(push, 1i8)
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// CHECK: #pragma warning(push)
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// CHECK: #pragma warning(push, 1)
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// CHECK: #pragma warning(push, 4)
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// CHECK: #pragma warning(push, 1)
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// CHECK: #pragma warning(push, 3)
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// CHECK: #pragma warning(push, 2)
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// CHECK: #pragma warning(push, 1)
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