tree 41f20732454a63b3a0d10306a942b1bccbe0fab3
parent 0011c0a159395ac8736f680392949bf8d8bcc287
author Jonathan Wakely <jwakely@redhat.com> 1664544121 -0400
committer Louis Dionne <ldionne.2@gmail.com> 1664573025 -0400

[libc++] Fix ADL for `make_error_{code,condition}`

Implement LWG 3629, by making lookup for make_error_code and
make_error_condition only consider names found by ADL. This is achieved
by adding a block scope using-declaration for a function that will be
found by unqualified lookup, preventing unqualified lookup from
continuing to enclosing scopes (the class scope, then enclosing
namespaces). The function named by the using declaration is not
viable, so overload resolution must select a candidate found by ADL.

This fixes https://github.com/llvm/llvm-project/issues/57614

Differential Revision: https://reviews.llvm.org/D134943