1*502155afSJustin Bogner // RUN: %clang_cc1 -E %s | FileCheck --strict-whitespace %s 2e8dcfef3SChris Lattner 3e8dcfef3SChris Lattner #define A x ## y 4e8dcfef3SChris Lattner blah 5e8dcfef3SChris Lattner 6e8dcfef3SChris Lattner A 7*502155afSJustin Bogner // CHECK: {{^}}xy{{$}} 8e8dcfef3SChris Lattner 9*502155afSJustin Bogner #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 ] 10*502155afSJustin Bogner B(x,y) 11*502155afSJustin Bogner // CHECK: [vw] [ vw] [vw ] [wx] [ wx] [wx ] [xy] [ xy] [xy ] [yz] [ yz] [yz ] 12*502155afSJustin Bogner B(x,) 13*502155afSJustin Bogner // CHECK: [vw] [ vw] [vw ] [wx] [ wx] [wx ] [x] [ x] [x ] [z] [ z] [z ] 14*502155afSJustin Bogner B(,y) 15*502155afSJustin Bogner // CHECK: [vw] [ vw] [vw ] [w] [ w] [w ] [y] [ y] [y ] [yz] [ yz] [yz ] 16*502155afSJustin Bogner B(,) 17*502155afSJustin Bogner // CHECK: [vw] [ vw] [vw ] [w] [ w] [w ] [] [ ] [ ] [z] [ z] [z ] 18*502155afSJustin Bogner 19*502155afSJustin Bogner #define C(x, y, z) [x ## y ## z] 20*502155afSJustin Bogner C(,,) C(a,,) C(,b,) C(,,c) C(a,b,) C(a,,c) C(,b,c) C(a,b,c) 21*502155afSJustin Bogner // CHECK: [] [a] [b] [c] [ab] [ac] [bc] [abc] 22