| 1 | // RUN: %clang_cc1 -E %s | FileCheck --strict-whitespace %s |
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| 2 | |
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| 3 | #define A x ## y |
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| 4 | blah |
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| 5 | |
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| 6 | A |
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| 7 | // CHECK: {{^}}xy{{$}} |
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| 8 | |
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| 9 | #define B(x, y) [v ## w] [ v##w] [v##w ] [w ## x] [ w##x] [w##x ] [x ## y] [ x##y] [x##y ] [y ## z] [ y##z] [y##z ] |
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| 10 | B(x,y) |
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| 11 | // CHECK: [vw] [ vw] [vw ] [wx] [ wx] [wx ] [xy] [ xy] [xy ] [yz] [ yz] [yz ] |
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| 12 | B(x,) |
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| 13 | // CHECK: [vw] [ vw] [vw ] [wx] [ wx] [wx ] [x] [ x] [x ] [z] [ z] [z ] |
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| 14 | B(,y) |
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| 15 | // CHECK: [vw] [ vw] [vw ] [w] [ w] [w ] [y] [ y] [y ] [yz] [ yz] [yz ] |
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| 16 | B(,) |
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| 17 | // CHECK: [vw] [ vw] [vw ] [w] [ w] [w ] [] [ ] [ ] [z] [ z] [z ] |
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| 18 | |
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| 19 | #define C(x, y, z) [x ## y ## z] |
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| 20 | C(,,) C(a,,) C(,b,) C(,,c) C(a,b,) C(a,,c) C(,b,c) C(a,b,c) |
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| 21 | // CHECK: [] [a] [b] [c] [ab] [ac] [bc] [abc] |
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| 22 | |
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