Mercurial > gnulib
view m4/sched_h.m4 @ 40214:452ab00796c7
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 | b06060465f09 |
children |
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# sched_h.m4 serial 11 dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Bruno Haible. AC_DEFUN([gl_SCHED_H], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #include <sched.h> struct sched_param a; int b[] = { SCHED_FIFO, SCHED_RR, SCHED_OTHER }; pid_t t1; ]])], [SCHED_H=''], [SCHED_H='sched.h' AC_CHECK_HEADERS([sched.h], [], [], [[#if HAVE_SYS_CDEFS_H #include <sys/cdefs.h> #endif ]]) gl_NEXT_HEADERS([sched.h]) if test "$ac_cv_header_sched_h" = yes; then HAVE_SCHED_H=1 else HAVE_SCHED_H=0 fi AC_SUBST([HAVE_SCHED_H]) if test "$HAVE_SCHED_H" = 1; then AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0], [[#if HAVE_SYS_CDEFS_H #include <sys/cdefs.h> #endif #include <sched.h> ]]) else HAVE_STRUCT_SCHED_PARAM=0 case "$host_os" in os2*) dnl On OS/2 kLIBC, struct sched_param is in spawn.h. AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [], [#include <spawn.h>]) ;; vms) dnl On OpenVMS 7.2 or newer, struct sched_param is in pthread.h. AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [], [#include <pthread.h>]) ;; esac fi AC_SUBST([HAVE_STRUCT_SCHED_PARAM]) if test "$ac_cv_header_sys_cdefs_h" = yes; then HAVE_SYS_CDEFS_H=1 else HAVE_SYS_CDEFS_H=0 fi AC_SUBST([HAVE_SYS_CDEFS_H]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) ]) AC_SUBST([SCHED_H]) AM_CONDITIONAL([GL_GENERATE_SCHED_H], [test -n "$SCHED_H"]) ])