comparison gcc/testsuite/g++.dg/cpp1y/pr79937-5.C @ 19:2b5abeee2509 default tip

update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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18:1830386684a0 19:2b5abeee2509
1 // PR c++/79937
2 // This is a constexpr adaptation of pr79937-3.C and pr79937-4.C.
3 // { dg-do compile { target c++14 } }
4
5 struct X {
6 unsigned i;
7 unsigned n = i;
8 };
9
10 constexpr X bar(X x) {
11 return x;
12 }
13
14 struct Y
15 {
16 static constexpr Y bar(Y y) { return y; }
17 unsigned i;
18 unsigned n = bar(Y{2,i}).n;
19 };
20
21 constexpr X x { 1, bar(X{2}).n };
22 static_assert(x.n == 2, "");
23
24 constexpr Y y { 1 };
25 static_assert(y.n == 1, "");
26
27 struct Z {
28 unsigned i;
29 unsigned n = i;
30 unsigned m = i;
31 };
32
33 constexpr Z
34 baz (Z z)
35 {
36 if (z.i != 1 || z.n != 2 || z.m != 1)
37 __builtin_abort ();
38 return z;
39 }
40
41 constexpr Z z = baz (Z {1, Z {2}.n});
42 static_assert(z.i == 1 && z.n == 2 && z.m == 1, "");