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comparison gcc/testsuite/g++.dg/cpp1z/constexpr-if29.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 // PR c++/85827
2 // { dg-do compile { target c++17 } }
3 // { dg-options "-Wunused-variable -Wunused-parameter" }
4
5 template <int N> int f()
6 {
7 constexpr bool _1 = N == 1;
8 constexpr bool _2 = N == 2;
9 constexpr bool _3 = N == 3;
10
11 if constexpr (_1) {
12 return 5;
13 } else if constexpr (_2) {
14 return 1;
15 } else if constexpr (_3) {
16 return 7;
17 }
18 }
19
20 int a() {
21 return f<1>();
22 }
23 int b() {
24 return f<2>();
25 }
26 int c() {
27 return f<3>();
28 }