// PR c++/67117 | |
// { dg-do compile { target c++17_only } } | |
// { dg-options "-fconcepts" } | |
template <class T> | |
requires false | |
constexpr bool v = true; | |
template <class T> | |
constexpr bool f() { return true; } | |
template <class T> | |
requires v<T> | |
constexpr bool f() { return false; } | |
static_assert(f<void>()); | |
static_assert(v<void>); // { dg-error "invalid" } |