llvm-project

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// RUN: %clang_cc1 -x c++ -fms-extensions -emit-pch -o %t %s
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// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -include-pch %t %s -verify
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// RUN: %clang_cc1 -x c++ -fms-extensions -emit-pch -fpch-instantiate-templates -o %t %s
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// RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -include-pch %t %s -verify
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#ifndef HEADER
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#define HEADER
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template<typename T>
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void f(T t) {
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  __if_exists(T::foo) {
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    { }
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    t.foo();
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  }
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  __if_not_exists(T::bar) {
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    int *i = t;
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    { }
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  }
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}
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#else
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struct HasFoo { 
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  void foo();
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};
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struct HasBar { 
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  void bar(int);
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  void bar(float);
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};
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template void f(HasFoo); // expected-note{{in instantiation of function template specialization 'f<HasFoo>' requested here}}
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                         // expected-error@17{{no viable conversion from 'HasFoo' to 'int *'}}
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template void f(HasBar);
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#endif
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