On Thu, 21 Dec 2023 at 21:26, Arsen Arsenović wrote: > + > + template<typename _A> > + concept _Stateless_alloc = (allocator_traits<_A>::is_always_equal::value > + && default_initializable<_A>);
The _A here is a BADNAME and needs to be more than one letter. FAIL: 17_intro/badnames.cc -std=gnu++23 (test for excess errors) Excess errors: /home/test/src/gcc/libstdc++-v3/testsuite/17_intro/badnames.cc:61: error: expected nested-name-specifier before '_A'
