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[PATCH] Define std::not_fn for C++17

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Fri, 19 Aug 2016 16:46:07 +0100
Subject: [PATCH] Define std::not_fn for C++17
Authentication-results: sourceware.org; auth=none

This updates std::experimental::not_fn to match the C++17 semantics
(which are a superset of the Library Fundamentals v2 semantics) and
then copies it to std::not_fn as well.

	* doc/xml/manual/status_cxx2017.xml: Update status of not_fn.
	* doc/html/*: Regenerate.
	* include/experimental/functional (_Not_fn, not_fn): Match C++17
	semantics.
	* include/std/functional (_Not_fn, not_fn): Define for C++17.
	* testsuite/20_util/not_fn/1.cc: New.
	* testsuite/experimental/functional/not_fn.cc: Test abstract class.
	Remove test for volatile-qualified wrapper.

Tested x86_64-linux, committed to trunk.

Attachment: patch.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] Define std::not_fn for C++17
  - From: Jonathan Wakely

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