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[PATCH] LWG 2733, LWG 2759 reject bool in gcd and lcm

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: Mon, 10 Oct 2016 13:17:41 +0100
Subject: [PATCH] LWG 2733, LWG 2759 reject bool in gcd and lcm
Authentication-results: sourceware.org; auth=none

These DRs are only in Tentatively Ready status, but they're not
controversial so implementing them immediately seems sensible.

The deleted function is sufficient, but the static assertions are more
user-friendly (and are only tested once, not in every recursive call
to __gcd or __lcm).

	* include/experimental/numeric (gcd, lcm): Make bool arguments
	ill-formed.
	* include/std/numeric (gcd, lcm): Likewise.
	* testsuite/26_numerics/gcd/gcd_neg.cc: New test.
	* testsuite/26_numerics/lcm/lcm_neg.cc: New test.

Tested x86_64-linux, committed to trunk.

Attachment: patch.txt
Description: Text document

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