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