From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from rock.gnat.com (rock.gnat.com [IPv6:2620:20:4000:0:a9e:1ff:fe9b:1d1]) by sourceware.org (Postfix) with ESMTPS id 669A63870863; Tue, 21 Jun 2022 05:38:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 669A63870863 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 3B1351160D8; Tue, 21 Jun 2022 01:38:04 -0400 (EDT) X-Virus-Scanned: Debian amavisd-new at gnat.com Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id R65W2s8ouHBz; Tue, 21 Jun 2022 01:38:04 -0400 (EDT) Received: from free.home (tron.gnat.com [IPv6:2620:20:4000:0:46a8:42ff:fe0e:e294]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by rock.gnat.com (Postfix) with ESMTPS id 051F81160D7; Tue, 21 Jun 2022 01:38:03 -0400 (EDT) Received: from livre (livre.home [172.31.160.2]) by free.home (8.15.2/8.15.2) with ESMTPS id 25L5bvS0692783 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jun 2022 02:37:57 -0300 From: Alexandre Oliva To: gcc-patches@gcc.gnu.org, libstdc++@gcc.gnu.org Subject: [PATCH] libstdc++: testsuite: use cmath long double overloads Organization: Free thinker, does not speak for AdaCore Errors-To: aoliva@lxoliva.fsfla.org Date: Tue, 21 Jun 2022 02:37:57 -0300 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.84 X-Spam-Status: No, score=-12.3 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libstdc++@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++ mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jun 2022 05:38:05 -0000 In case we need to supplement the C standard library with additional definitions for float and long double, the declarations expected to be in the C headers may not be there. Rely on the cmath overloads instead. Regstrapped on x86_64-linux-gnu, also tested with a cross to aarch64-rtems6. Ok to install? for libstdc++-v3/ChangeLog * testsuite/20_util/to_chars/long_double.cc: Use cmath long double overloads for nexttoward and ldexp. --- .../testsuite/20_util/to_chars/long_double.cc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/libstdc++-v3/testsuite/20_util/to_chars/long_double.cc b/libstdc++-v3/testsuite/20_util/to_chars/long_double.cc index 0b1c2c2936fdc..498388110b179 100644 --- a/libstdc++-v3/testsuite/20_util/to_chars/long_double.cc +++ b/libstdc++-v3/testsuite/20_util/to_chars/long_double.cc @@ -54,11 +54,11 @@ namespace detail { long double nextupl(long double x) - { return nexttowardl(x, numeric_limits::infinity()); } + { return nexttoward(x, numeric_limits::infinity()); } long double nextdownl(long double x) - { return nexttowardl(x, -numeric_limits::infinity()); } + { return nexttoward(x, -numeric_limits::infinity()); } } // The long double overloads of std::to_chars currently just go through printf @@ -138,7 +138,7 @@ test01() for (int exponent : {-11000, -3000, -300, -50, -7, 0, 7, 50, 300, 3000, 11000}) for (long double testcase : hex_testcases) { - testcase = ldexpl(testcase, exponent); + testcase = ldexp(testcase, exponent); if (testcase == 0.0L || isinf(testcase)) continue; -- Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/ Free Software Activist GNU Toolchain Engineer Disinformation flourishes because many people care deeply about injustice but very few check the facts. Ask me about