https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97523
Bug ID: 97523
Summary: [11 Regression] bogus "would use explicit constructor"
error for new[]()
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mpolacek at gcc dot gnu.org
Target Milestone: ---
Since my r11-3092 the following is rejected with -std=c++20:
template <typename> struct A;
template <typename T> struct A<T[]> { typedef T type; };
template <typename T> using U = typename A<T>::type;
struct B {
template <typename T> B(T);
};
long int sz;
template <typename T> void foo() { new U<T>[sz](); }
struct D {
explicit D();
};
struct C {
B b;
C() : b(foo<D[]>) {}
};
r.cc: In instantiation of ‘void foo() [with T = D []]’:
r.cc:19:9: required from here
r.cc:11:36: error: converting to ‘U<D []>’ {aka ‘D’} from initializer list
would use explicit constructor ‘D::D()’
11 | template <typename T> void foo() { new U<T>[sz](); }
|
