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view gcc/testsuite/g++.dg/cpp0x/decltype39.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++/53788 // { dg-do compile { target c++11 } } struct t { static const bool value = true; }; struct f { static const bool value = false; }; template<typename T> struct has_static { template<typename X> static t check(X*, decltype(T::fun())* = 0); // { dg-error "without object" } static f check(...); typedef decltype(check((T*)(0))) ret; static const bool value = ret::value; }; struct test { int fun() { return 0; } }; bool b = has_static<test>::value;