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Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.
author Bruno Haible <bruno@clisp.org>
date Sat, 09 Mar 2019 20:32:25 +0100
parents cfcc57a4ed05
children
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Description:
global random number generator

Files:
lib/random.c
m4/random.m4

Depends-on:
libc-config     [test $HAVE_RANDOM = 0 || test $REPLACE_RANDOM = 1 || test $REPLACE_INITSTATE = 1 || test $REPLACE_SETSTATE = 1]
stdlib
stdint          [test $HAVE_RANDOM = 0 || test $REPLACE_RANDOM = 1 || test $REPLACE_INITSTATE = 1 || test $REPLACE_SETSTATE = 1]
random_r        [test $HAVE_RANDOM = 0 || test $REPLACE_RANDOM = 1 || test $REPLACE_INITSTATE = 1 || test $REPLACE_SETSTATE = 1]

configure.ac:
gl_FUNC_RANDOM
if test $HAVE_RANDOM = 0 || test $REPLACE_RANDOM = 1 || test $REPLACE_INITSTATE = 1 || test $REPLACE_SETSTATE = 1; then
  AC_LIBOBJ([random])
  gl_PREREQ_RANDOM
fi
gl_STDLIB_MODULE_INDICATOR([random])

Makefile.am:

Include:
<stdlib.h>

License:
LGPL

Maintainer:
glibc