| 1 | /* Clang supports a very limited subset of -traditional-cpp, basically we only |
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| 2 | * intend to add support for things that people actually rely on when doing |
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| 3 | * things like using /usr/bin/cpp to preprocess non-source files. */ |
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| 4 | |
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| 5 | /* |
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| 6 | RUN: %clang_cc1 -traditional-cpp %s -E | FileCheck -strict-whitespace %s |
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| 7 | RUN: %clang_cc1 -traditional-cpp %s -E -C | FileCheck -check-prefix=CHECK-COMMENTS %s |
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| 8 | RUN: %clang_cc1 -traditional-cpp -x c++ %s -E | FileCheck -check-prefix=CHECK-CXX %s |
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| 9 | */ |
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| 10 | |
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| 11 | /* -traditional-cpp should eliminate all C89 comments. */ |
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| 12 | /* CHECK-NOT: /* |
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| 13 | * CHECK-COMMENTS: {{^}}/* -traditional-cpp should eliminate all C89 comments. *{{/$}} |
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| 14 | */ |
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| 15 | |
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| 16 | /* -traditional-cpp should only eliminate "//" comments in C++ mode. */ |
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| 17 | /* CHECK: {{^}}foo // bar{{$}} |
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| 18 | * CHECK-CXX: {{^}}foo {{$}} |
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| 19 | */ |
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| 20 | foo // bar |
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| 21 | |
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| 22 | |
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| 23 | /* The lines in this file contain hard tab characters and trailing whitespace; |
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| 24 | * do not change them! */ |
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| 25 | |
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| 26 | /* CHECK: {{^}} indented!{{$}} |
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| 27 | * CHECK: {{^}}tab separated values{{$}} |
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| 28 | */ |
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| 29 | indented! |
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| 30 | tab separated values |
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| 31 | |
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| 32 | #define bracket(x) >>>x<<< |
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| 33 | bracket(| spaces |) |
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| 34 | /* CHECK: {{^}}>>>| spaces |<<<{{$}} |
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| 35 | */ |
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| 36 | |
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| 37 | /* This is still a preprocessing directive. */ |
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| 38 | # define foo bar |
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| 39 | foo! |
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| 40 | - |
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| 41 | foo! foo! |
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| 42 | /* CHECK: {{^}}bar!{{$}} |
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| 43 | * CHECK: {{^}} bar! bar! {{$}} |
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| 44 | */ |
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| 45 | |
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| 46 | /* Deliberately check a leading newline with spaces on that line. */ |
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| 47 | |
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| 48 | # define foo bar |
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| 49 | foo! |
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| 50 | - |
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| 51 | foo! foo! |
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| 52 | /* CHECK: {{^}}bar!{{$}} |
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| 53 | * CHECK: {{^}} bar! bar! {{$}} |
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| 54 | */ |
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| 55 | |
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| 56 | /* FIXME: -traditional-cpp should not consider this a preprocessing directive |
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| 57 | * because the # isn't in the first column. |
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| 58 | */ |
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| 59 | #define foo2 bar |
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| 60 | foo2! |
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| 61 | /* If this were working, both of these checks would be on. |
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| 62 | * CHECK-NOT: {{^}} #define foo2 bar{{$}} |
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| 63 | * CHECK-NOT: {{^}}foo2!{{$}} |
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| 64 | */ |
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| 65 | |
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| 66 | /* FIXME: -traditional-cpp should not homogenize whitespace in macros. |
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| 67 | */ |
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| 68 | #define bracket2(x) >>> x <<< |
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| 69 | bracket2(spaces) |
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| 70 | /* If this were working, this check would be on. |
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| 71 | * CHECK-NOT: {{^}}>>> spaces <<<{{$}} |
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| 72 | */ |
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| 73 | |
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| 74 | |
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| 75 | /* Check that #if 0 blocks work as expected */ |
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| 76 | #if 0 |
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| 77 | #error "this is not an error" |
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| 78 | |
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| 79 | #if 1 |
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| 80 | a b c in skipped block |
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| 81 | #endif |
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| 82 | |
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| 83 | /* Comments are whitespace too */ |
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| 84 | |
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| 85 | #endif |
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| 86 | /* CHECK-NOT: {{^}}a b c in skipped block{{$}} |
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| 87 | * CHECK-NOT: {{^}}/* Comments are whitespace too |
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| 88 | */ |
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| 89 | |
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| 90 | Preserve URLs: http://clang.llvm.org |
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| 91 | /* CHECK: {{^}}Preserve URLs: http://clang.llvm.org{{$}} |
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| 92 | */ |
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| 93 | |
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| 94 | /* The following tests ensure we ignore # and ## in macro bodies */ |
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| 95 | |
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| 96 | #define FOO_NO_STRINGIFY(a) test(# a) |
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| 97 | FOO_NO_STRINGIFY(foobar) |
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| 98 | /* CHECK: {{^}}test(# foobar){{$}} |
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| 99 | */ |
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| 100 | |
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| 101 | #define FOO_NO_PASTE(a, b) test(b##a) |
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| 102 | FOO_NO_PASTE(xxx,yyy) |
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| 103 | /* CHECK: {{^}}test(yyy##xxx){{$}} |
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| 104 | */ |
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| 105 | |
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| 106 | #define BAR_NO_STRINGIFY(a) test(#a) |
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| 107 | BAR_NO_STRINGIFY(foobar) |
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| 108 | /* CHECK: {{^}}test(#foobar){{$}} |
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| 109 | */ |
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| 110 | |
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