Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/template-parm2.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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// { dg-do compile { target c++17_only } } // { dg-options "-fconcepts" } template<typename T> concept bool C1 = __is_same_as(T, int); template<int N> concept bool C2 = N == 0; template<template<typename> class X> concept bool C3 = false; template<typename> struct Foo; // Instantiation of default arguments happens at the point of // instantiation for the class. template<C1 T = char> struct S1 { }; template<C2 N = 1> struct S2 { }; template<C3 X = Foo> struct S3 { }; S1<> s1; // { dg-error "constraint failure|invalid type" } S2<> s2; // { dg-error "constraint failure|invalid type" } S3<> s3; // { dg-error "constraint failure|invalid type" }