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comparison gcc/testsuite/g++.dg/cpp1y/constexpr-84808.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++/84808
2 // { dg-do compile { target c++14 } }
3
4 struct A { int i; constexpr A () : i() {} };
5 struct B { A a[24]; };
6
7 constexpr int
8 foo (int n)
9 {
10 B b;
11 ++b.a[n + 20].i;
12 ++b.a[n + 18].i;
13 ++b.a[n + 16].i;
14 ++b.a[n + 14].i;
15 ++b.a[n + 12].i;
16 ++b.a[n + 10].i;
17 ++b.a[n + 8].i;
18 ++b.a[n + 6].i;
19 ++b.a[n + 4].i;
20 ++b.a[n + 2].i;
21 ++b.a[n].i;
22 return b.a[2].i + b.a[4].i + b.a[6].i + b.a[8].i + b.a[10].i
23 + b.a[12].i + b.a[14].i + b.a[16].i + b.a[18].i + b.a[20].i + b.a[22].i;
24 }
25
26 constexpr int i = foo (2);
27 static_assert (i == 11, "");