[Bug libstdc++/91871] iterator_to_const_iterator() in testsuite_hooks.h causes valid -Wreturn-stack-address warnings with LLVM

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91871

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Sep 24 10:09:18 2019
New Revision: 276091

URL: https://gcc.gnu.org/viewcvs?rev=276091&root=gcc&view=rev
Log:
PR libstdc++/91871 fix Clang warnings in testsuite

        PR libstdc++/91871
        * testsuite/util/testsuite_hooks.h
        (conversion::iterator_to_const_iterator()): Do not return an invalid
        iterator. Test direct-initialization and direct-list-initialization
        as well as implicit conversion.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/testsuite/util/testsuite_hooks.h