blob: 97b42d6ed0c4236c68d54ec71f89b249e5f94364 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// PR c++/116567
// { dg-do compile { target c++20 } }
struct X { int n; };
template<auto N, auto F = []{ return N; }>
auto v1 = F;
template<auto N, auto F = [](auto y){ return decltype(N){N.n + y}; }>
auto v1g = F;
template<class T>
struct A {
template<auto N, auto F = []{ return N; }>
static inline auto v2 = F;
template<auto N, auto F = [](auto y){ return decltype(N){N.n + y}; }>
static inline auto v2g = F;
template<class U>
struct B {
template<auto N, auto F = []{ return N; }>
static inline auto v3 = F;
template<auto N, auto F = [](auto y){ return decltype(N){N.n + y}; }>
static inline auto v3g = F;
template<class V>
static void f() {
static_assert(v1<X{1}>().n == 1);
static_assert(v1g<X{1}>(42).n == 1 + 42);
static_assert(v2<X{2}>().n == 2);
static_assert(v2g<X{2}>(42).n == 2 + 42);
static_assert(v3<X{3}>().n == 3);
static_assert(v3g<X{3}>(42).n == 3 + 42);
}
};
};
int main() {
A<int>::B<int>::f<int>();
}
|
