Mercurial > gnulib
view modules/signbit @ 40211:5f58d2ac35ea
unistr/u8-cmp: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u8-cmp.c (u8_cmp): Don't invoke memcmp if n is zero.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 08 Mar 2019 20:38:22 +0100 |
parents | 32db4d32dbf9 |
children |
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Description: signbit() macro: Determine the sign bit of a floating-point number. Files: lib/signbitf.c lib/signbitd.c lib/signbitl.c lib/float+.h m4/signbit.m4 Depends-on: math float [test $REPLACE_SIGNBIT = 1] isnanf-nolibm [test $REPLACE_SIGNBIT = 1] isnand-nolibm [test $REPLACE_SIGNBIT = 1] isnanl-nolibm [test $REPLACE_SIGNBIT = 1] fpieee [test $REPLACE_SIGNBIT = 1] memcmp [test $REPLACE_SIGNBIT = 1] configure.ac: gl_SIGNBIT if test $REPLACE_SIGNBIT = 1; then AC_LIBOBJ([signbitf]) AC_LIBOBJ([signbitd]) AC_LIBOBJ([signbitl]) fi gl_MATH_MODULE_INDICATOR([signbit]) Makefile.am: Include: <math.h> License: LGPLv2+ Maintainer: all