Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/sfinae56.C @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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// PR c++/68926 // { dg-do compile { target c++11 } } struct true_type { static constexpr bool value = true; }; struct false_type { static constexpr bool value = false; }; template<bool Cond> struct enable_if { using type = void; }; template<> struct enable_if<false> { }; template<typename T, typename U> struct is_same : false_type { }; template<typename T> struct is_same<T, T> : true_type { }; template<typename T> typename enable_if<is_same<int, T>::value>::type func(); template<typename T, typename = decltype(func<T>)> true_type test(T); false_type test(...); int main() { decltype(test(0))::value; // ok decltype(test(0.f))::value; // error }