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110 lines
2.6 KiB
110 lines
2.6 KiB
4 months ago
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/* Clang supports a very limited subset of -traditional-cpp, basically we only
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* intend to add support for things that people actually rely on when doing
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* things like using /usr/bin/cpp to preprocess non-source files. */
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/*
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RUN: %clang_cc1 -traditional-cpp %s -E | FileCheck -strict-whitespace %s
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RUN: %clang_cc1 -traditional-cpp %s -E -C | FileCheck -check-prefix=CHECK-COMMENTS %s
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RUN: %clang_cc1 -traditional-cpp -x c++ %s -E | FileCheck -check-prefix=CHECK-CXX %s
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*/
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/* -traditional-cpp should eliminate all C89 comments. */
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/* CHECK-NOT: /*
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* CHECK-COMMENTS: {{^}}/* -traditional-cpp should eliminate all C89 comments. *{{/$}}
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*/
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/* -traditional-cpp should only eliminate "//" comments in C++ mode. */
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/* CHECK: {{^}}foo // bar{{$}}
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* CHECK-CXX: {{^}}foo {{$}}
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*/
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foo // bar
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/* The lines in this file contain hard tab characters and trailing whitespace;
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* do not change them! */
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/* CHECK: {{^}} indented!{{$}}
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* CHECK: {{^}}tab separated values{{$}}
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*/
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indented!
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tab separated values
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#define bracket(x) >>>x<<<
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bracket(| spaces |)
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/* CHECK: {{^}}>>>| spaces |<<<{{$}}
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*/
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/* This is still a preprocessing directive. */
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# define foo bar
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foo!
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-
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foo! foo!
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/* CHECK: {{^}}bar!{{$}}
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* CHECK: {{^}} bar! bar! {{$}}
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*/
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/* Deliberately check a leading newline with spaces on that line. */
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# define foo bar
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foo!
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-
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foo! foo!
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/* CHECK: {{^}}bar!{{$}}
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* CHECK: {{^}} bar! bar! {{$}}
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*/
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/* FIXME: -traditional-cpp should not consider this a preprocessing directive
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* because the # isn't in the first column.
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*/
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#define foo2 bar
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foo2!
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/* If this were working, both of these checks would be on.
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* CHECK-NOT: {{^}} #define foo2 bar{{$}}
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* CHECK-NOT: {{^}}foo2!{{$}}
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*/
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/* FIXME: -traditional-cpp should not homogenize whitespace in macros.
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*/
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#define bracket2(x) >>> x <<<
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bracket2(spaces)
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/* If this were working, this check would be on.
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* CHECK-NOT: {{^}}>>> spaces <<<{{$}}
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*/
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/* Check that #if 0 blocks work as expected */
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#if 0
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#error "this is not an error"
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#if 1
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a b c in skipped block
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#endif
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/* Comments are whitespace too */
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#endif
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/* CHECK-NOT: {{^}}a b c in skipped block{{$}}
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* CHECK-NOT: {{^}}/* Comments are whitespace too
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*/
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Preserve URLs: http://clang.llvm.org
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/* CHECK: {{^}}Preserve URLs: http://clang.llvm.org{{$}}
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*/
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/* The following tests ensure we ignore # and ## in macro bodies */
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#define FOO_NO_STRINGIFY(a) test(# a)
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FOO_NO_STRINGIFY(foobar)
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/* CHECK: {{^}}test(# foobar){{$}}
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*/
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#define FOO_NO_PASTE(a, b) test(b##a)
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FOO_NO_PASTE(xxx,yyy)
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/* CHECK: {{^}}test(yyy##xxx){{$}}
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*/
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#define BAR_NO_STRINGIFY(a) test(#a)
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BAR_NO_STRINGIFY(foobar)
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/* CHECK: {{^}}test(#foobar){{$}}
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*/
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