Add [[nodiscard]] attribute to std::launder
commitd3ff1ad9bc35afea38137c7fd73512b41368127d
authorredi <redi@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 24 Nov 2017 00:00:46 +0000 (24 00:00 +0000)
committerredi <redi@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 24 Nov 2017 00:00:46 +0000 (24 00:00 +0000)
tree869e4a4b94ada09249de3fa75a23531b682ea3cc
parente04cb903a0523358dcefd9a2075be6674aa3b5bd
Add [[nodiscard]] attribute to std::launder

* libsupc++/new (launder): Add nodiscard attribute.
* testsuite/18_support/launder/nodiscard.cc: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255127 138bc75d-0d04-0410-961f-82ee72b054a4
libstdc++-v3/ChangeLog
libstdc++-v3/libsupc++/new
libstdc++-v3/testsuite/18_support/launder/nodiscard.cc [new file with mode: 0644]