From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1791) id DA99D3856242; Tue, 10 May 2022 18:19:18 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DA99D3856242 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Adhemerval Zanella To: glibc-cvs@sourceware.org Subject: [glibc/azanella/clang] stdlib: Fix macro expansion producing 'defined' has undefined behavior X-Act-Checkin: glibc X-Git-Author: Adhemerval Zanella X-Git-Refname: refs/heads/azanella/clang X-Git-Oldrev: f9eae4328a3bfda957a5cb34221ccdf578179085 X-Git-Newrev: 0ca2c391a0523fde5de0b465c215ef010123e420 Message-Id: <20220510181918.DA99D3856242@sourceware.org> Date: Tue, 10 May 2022 18:19:18 +0000 (GMT) X-BeenThere: glibc-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 May 2022 18:19:19 -0000 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0ca2c391a0523fde5de0b465c215ef010123e420 commit 0ca2c391a0523fde5de0b465c215ef010123e420 Author: Adhemerval Zanella Date: Wed Mar 9 15:36:53 2022 -0300 stdlib: Fix macro expansion producing 'defined' has undefined behavior Diff: --- stdlib/fpioconst.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/stdlib/fpioconst.h b/stdlib/fpioconst.h index 1e01999941..3e185f5751 100644 --- a/stdlib/fpioconst.h +++ b/stdlib/fpioconst.h @@ -52,9 +52,12 @@ - LDBL_MIN_EXP + 2)). When _Float128 is enabled in libm and it is ABI-distinct from long double (e.g. on powerpc64le), we also need powers of 10 up to floor (log_2 (FLT128_MANT_DIG - FLT128_MIN_EXP + 2)). */ -#define FPIOCONST_HAVE_EXTENDED_RANGE \ - ((!defined __NO_LONG_DOUBLE_MATH && __LDBL_MAX_EXP__ > 1024) \ - || __HAVE_DISTINCT_FLOAT128) +#if (!defined __NO_LONG_DOUBLE_MATH && __LDBL_MAX_EXP__ > 1024) \ + || __HAVE_DISTINCT_FLOAT128 +# define FPIOCONST_HAVE_EXTENDED_RANGE 1 +#else +# define FPIOCONST_HAVE_EXTENDED_RANGE 0 +#endif #if FPIOCONST_HAVE_EXTENDED_RANGE # define FPIOCONST_POW10_ARRAY_SIZE 15