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comparison gcc/testsuite/g++.dg/cpp1z/constexpr-if22.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
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); }