derek.holloway
7502bf64a4
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62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* Test pragma pop_macro and push_macro directives from
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http://msdn.microsoft.com/en-us/library/hsttss76.aspx */
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// pop_macro: Sets the value of the macro_name macro to the value on the top of
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// the stack for this macro.
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// #pragma pop_macro("macro_name")
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// push_macro: Saves the value of the macro_name macro on the top of the stack
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// for this macro.
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// #pragma push_macro("macro_name")
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//
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// RUN: %clang_cc1 -fms-extensions -E %s -o - | FileCheck %s
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#define X 1
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#define Y 2
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int pmx0 = X;
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int pmy0 = Y;
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#define Y 3
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#pragma push_macro("Y")
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#pragma push_macro("X")
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int pmx1 = X;
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#define X 2
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int pmx2 = X;
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#pragma pop_macro("X")
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int pmx3 = X;
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#pragma pop_macro("Y")
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int pmy1 = Y;
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// Have a stray 'push' to show we don't crash when having imbalanced
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// push/pop
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#pragma push_macro("Y")
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#define Y 4
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int pmy2 = Y;
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// The sequence push, define/undef, pop caused problems if macro was not
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// previously defined.
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#pragma push_macro("PREVIOUSLY_UNDEFINED1")
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#undef PREVIOUSLY_UNDEFINED1
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#pragma pop_macro("PREVIOUSLY_UNDEFINED1")
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#ifndef PREVIOUSLY_UNDEFINED1
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int Q;
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#endif
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#pragma push_macro("PREVIOUSLY_UNDEFINED2")
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#define PREVIOUSLY_UNDEFINED2
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#pragma pop_macro("PREVIOUSLY_UNDEFINED2")
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#ifndef PREVIOUSLY_UNDEFINED2
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int P;
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#endif
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// CHECK: int pmx0 = 1
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// CHECK: int pmy0 = 2
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// CHECK: int pmx1 = 1
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// CHECK: int pmx2 = 2
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// CHECK: int pmx3 = 1
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// CHECK: int pmy1 = 3
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// CHECK: int pmy2 = 4
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// CHECK: int Q;
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// CHECK: int P;
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#pragma push_macro("")
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#pragma pop_macro("")
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