[Bug c++/103904] New: [defect fix] Please backport P2325R3 to 10 and 11

[h2+bugs at fsfe dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103904

            Bug ID: 103904
           Summary: [defect fix] Please backport P2325R3 to 10 and 11
           Product: gcc
           Version: 11.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: h2+bugs at fsfe dot org
  Target Milestone: ---

Views are no longer required to be default-initializable [P2325R3]. This has
apparently been fixed on current trunk, but GCC11.2 and GCC10.3 still fail at
this example:

#include <ranges>

struct T : std::ranges::view_base
{
    T() = delete;

    char * begin() { return nullptr; }

    char * end() { return nullptr; }

};

static_assert(std::ranges::range<T>);
static_assert(std::ranges::view<T>);


Since this change is quite significant and considered a defect-fix, could you
backport it to GCC10 and GCC11?

Thank you very much!