Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/decltype5.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// { dg-do compile { target c++11 } } template<typename T, typename U> struct is_same { static const bool value = false; }; template<typename T> struct is_same<T, T> { static const bool value = true; }; #define CHECK_DECLTYPE(DECLTYPE,RESULT) \ static_assert(is_same< DECLTYPE , RESULT >::value, #RESULT) template<typename F> F create_a(); template<typename F, typename T1> decltype(create_a<F&>()(create_a<const T1&>())) forward(F f, const T1& a1) { return f(a1); } struct identity { template<typename T> const T& operator()(const T& x) { return x; } }; identity id; int i; float f; CHECK_DECLTYPE(decltype(forward(id, i)), const int&); CHECK_DECLTYPE(decltype(forward(id, f)), const float&);