This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug libstdc++/71187] declval() can be implemented without requiring a template instantiation
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 18 Sep 2017 11:40:42 +0000
- Subject: [Bug libstdc++/71187] declval() can be implemented without requiring a template instantiation
- Auto-submitted: auto-generated
- References: <bug-71187-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71187
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Sep 18 11:40:10 2017
New Revision: 252922
URL: https://gcc.gnu.org/viewcvs?rev=252922&root=gcc&view=rev
Log:
PR libstdc++/71187 reimplement declval without add_rvalue_reference
PR libstdc++/71187
* include/std/type_traits (__declval): New function to deduce return
type of declval.
(__declval_protector::_delegate): Remove.
(declval): Use __declval instead of add_rvalue_reference and
__declval_protector::__delegate.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
lineno.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
Likewise.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/std/type_traits
trunk/libstdc++-v3/testsuite/20_util/declval/requirements/1_neg.cc
trunk/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc
trunk/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc