src/llvm/tools/clang/test/SemaCXX/warn-using-namespace-in-header.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -Wheader-hygiene -verify %s
   2
   3 #include "warn-using-namespace-in-header.h"
   4
   5 namespace dont_warn {}
   6 using namespace dont_warn;
   7
   8 // Warning is actually in the header but only the cpp file gets scanned.
   9 // expected-warning {{using namespace directive in global context in header}}
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  19 // Warn inside linkage specs too.
  20 // expected-warning {{using namespace directive in global context in header}}
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  27 // expected-warning {{using namespace directive in global context in header}}
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  50 // expected-warning {{using namespace directive in global context in header}}
  51
  52 // |using namespace| through a macro shouldn't warn if the instantiation is in a
  53 // cc file.
  54 USING_MACRO