From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2181) id D416E385AE46; Thu, 21 Jul 2022 11:16:33 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D416E385AE46 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Jonathan Wakely To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r12-8591] libstdc++: Make __from_chars_alnum_to_val conversion explicit X-Act-Checkin: gcc X-Git-Author: Marco Falke X-Git-Refname: refs/heads/releases/gcc-12 X-Git-Oldrev: f3ff78e3db0fc18127dac4fe3eaf113d0c5ddd01 X-Git-Newrev: 0bb30f94ace6be68bd315d03f36b24bbaec2bee7 Message-Id: <20220721111633.D416E385AE46@sourceware.org> Date: Thu, 21 Jul 2022 11:16:33 +0000 (GMT) X-BeenThere: libstdc++-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2022 11:16:33 -0000 https://gcc.gnu.org/g:0bb30f94ace6be68bd315d03f36b24bbaec2bee7 commit r12-8591-g0bb30f94ace6be68bd315d03f36b24bbaec2bee7 Author: Marco Falke Date: Tue Jul 19 10:10:39 2022 +0100 libstdc++: Make __from_chars_alnum_to_val conversion explicit The optimizations from commit r12-8175-ga54137c88061c7 introduced a clang integer sanitizer error. Fix this with an explicit static_cast, similar to the fix for PR 96766. libstdc++-v3/ChangeLog: * include/std/charconv (__from_chars_alnum_to_val): Replace implicit conversion from int to unsigned char with explicit cast. (cherry picked from commit 20ab3972240aff596a3fa98e9fb09ddc0658fbb3) Diff: --- libstdc++-v3/include/std/charconv | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/charconv b/libstdc++-v3/include/std/charconv index 218813e4797..533320ea085 100644 --- a/libstdc++-v3/include/std/charconv +++ b/libstdc++-v3/include/std/charconv @@ -436,7 +436,7 @@ namespace __detail __from_chars_alnum_to_val(unsigned char __c) { if _GLIBCXX17_CONSTEXPR (_DecOnly) - return __c - '0'; + return static_cast(__c - '0'); else { // This initializer is deliberately made dependent in order to work