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[PATCH] PR libstdc++/60555 std::system_category() should recognise POSIX errno values

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: Wed, 1 Aug 2018 14:57:25 +0100
Subject: [PATCH] PR libstdc++/60555 std::system_category() should recognise POSIX errno values

	PR libstdc++/60555
	* src/c++11/system_error.cc
	(system_error_category::default_error_condition): New override to
	check for POSIX errno values.
	* testsuite/19_diagnostics/error_category/generic_category.cc: New
	* testsuite/19_diagnostics/error_category/system_category.cc: New
	test.

Tested x86_64-linux and powerpc64le-linux, committed to trunk.

I want to backport this to all the active branches too. It only
changes an internal type that isn't exported, and the new libstdc++.so
will even fix existing code that currently gets the wrong
error_category for POSIX errno values.

Attachment: patch.txt
Description: Text document

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