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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/SemaCXX/warn-using-namespace-in-header.h | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/SemaCXX/warn-using-namespace-in-header.h')
-rw-r--r-- | clang/test/SemaCXX/warn-using-namespace-in-header.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/warn-using-namespace-in-header.h b/clang/test/SemaCXX/warn-using-namespace-in-header.h new file mode 100644 index 0000000..b544c54 --- /dev/null +++ b/clang/test/SemaCXX/warn-using-namespace-in-header.h @@ -0,0 +1,50 @@ + + + + + +// Lots of vertical space to make the error line match up with the line of the +// expected line in the source file. +namespace warn_in_header_in_global_context {} +using namespace warn_in_header_in_global_context; + +// While we want to error on the previous using directive, we don't when we are +// inside a namespace +namespace dont_warn_here { +using namespace warn_in_header_in_global_context; +} + +// We should warn in toplevel extern contexts. +namespace warn_inside_linkage {} +extern "C++" { +using namespace warn_inside_linkage; +} + +// This is really silly, but we should warn on it: +extern "C++" { +extern "C" { +extern "C++" { +using namespace warn_inside_linkage; +} +} +} + +// But we shouldn't warn in extern contexts inside namespaces. +namespace dont_warn_here { +extern "C++" { +using namespace warn_in_header_in_global_context; +} +} + +// We also shouldn't warn in case of functions. +inline void foo() { + using namespace warn_in_header_in_global_context; +} + + +namespace macronamespace {} +#define USING_MACRO using namespace macronamespace; + +// |using namespace| through a macro should warn if the instantiation is in a +// header. +USING_MACRO |