Mercurial > hg > CbC > CbC_gcc
annotate gcc/testsuite/g++.dg/cpp1z/constexpr-if22.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | |
children |
rev | line source |
---|---|
131 | 1 // PR c++/85695 |
2 // { dg-do compile { target c++17 } } | |
3 | |
4 template <typename T, T v> | |
5 struct integral_constant { | |
6 using value_type = T; | |
7 static constexpr const value_type value = v; | |
8 constexpr operator value_type (void) const { return value; } | |
9 }; | |
10 template <typename T> struct is_trivial | |
11 : public integral_constant<bool, __is_trivial(T)> {}; | |
12 | |
13 template <typename T> | |
14 T clone_object (const T& p) | |
15 { | |
16 if constexpr (is_trivial<T>::value) | |
17 return p; | |
18 else | |
19 return p.clone(); | |
20 } | |
21 int main (void) { return clone_object(0); } |