clang/test/CXX/temp/temp.spec/temp.explicit/p5.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -Wc++11-compat %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 -Wc++11-compat %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   4
   5 namespace N {
   6   template<class T> class Y { // expected-note{{explicit instantiation refers here}}
   7     void mf() { }
   8   };
   9 }
  10
  11 template class Z<int>; // expected-error{{explicit instantiation of undeclared template class 'Z'}}
  12
  13 struct Q;
  14 template class Q<int>; // expected-error{{explicit instantiation of non-template class 'Q'}}
  15
  16 // FIXME: This example from the standard is wrong; note posted to CWG reflector
  17 // on 10/27/2009
  18 using N::Y;
  19 template class Y<int>;
  20 #if __cplusplus <= 199711L
  21 // expected-warning@-2 {{explicit instantiation of 'N::Y' must occur in namespace 'N'}}
  22 #else
  23 // expected-error@-4 {{explicit instantiation of 'N::Y' must occur in namespace 'N'}}
  24 #endif
  25
  26 template class N::Y<char*>;
  27 template void N::Y<double>::mf();