Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/constexpr-inst1.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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// Testcase from P0859 // { dg-do compile { target c++14 } } template<typename T> constexpr int f() { return T::value; } // { dg-error "int" } template<bool B, typename T> void g(decltype(B ? f<T>() : 0)); template<bool B, typename T> void g(...); template<bool B, typename T> void h(decltype(int{B ? f<T>() : 0})); template<bool B, typename T> void h(...); void x() { g<false, int>(0); // OK, B ? f<T>() : 0 is not potentially constant evaluated h<false, int>(0); // error, instantiates f<int> even though B evaluates to false and // list-initialization of int from int cannot be narrowing }