https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110195
Bug ID: 110195
Summary: defaulted constructor does not respect the private
accessor
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jack.cui2 at foxmail dot com
Target Milestone: ---
class Single
{
private:
Single() = default;
};
auto s1 = Single{}; // compiles fine with c++11,14,17. Compilation error with
c++20. Unexpected.
auto s2 = Single(); // compilation error. expected behavior.
Single s3; // compilation error. expected behavior.
----------------------------
but with
class Single
{
private:
explicit Single() = default;
};
or
class Single
{
private:
Single() {}
};
auto s1 = Single{}; // compilation error. expected behavior.
auto s2 = Single(); // compilation error. expected behavior.
Single s3; // compilation error. expected behavior.