[Bug libstdc++/66742] abort on sorting list with custom compiler that is not stateless

[daniel.kruegler at googlemail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66742

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
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--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
Your definition of operator!= for the allocator test_alloc violates the
allocator requirements, which impose that != behaves the same as the negation
of == (see Table 28 — Allocator requirements, [allocator.requirements]). This
violates causes undefined behaviour. Therefore it seems to me as if this is an
invalid bug report.