Mercurial > gnulib
view m4/sys_resource_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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# sys_resource_h.m4 serial 2 dnl Copyright (C) 2012-2019 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. AC_DEFUN([gl_HEADER_SYS_RESOURCE], [ AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS]) dnl <sys/resource.h> is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([sys/resource.h]) if test $ac_cv_header_sys_resource_h = yes; then HAVE_SYS_RESOURCE_H=1 else HAVE_SYS_RESOURCE_H=0 fi AC_SUBST([HAVE_SYS_RESOURCE_H]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ #if HAVE_SYS_RESOURCE_H /* At least FreeBSD 5.0 needs extra headers before <sys/resource.h> will compile. */ # include <sys/types.h> # include <sys/time.h> # include <sys/resource.h> #endif ]], [getrusage]) ]) AC_DEFUN([gl_SYS_RESOURCE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_RESOURCE_H_DEFAULTS], [ GNULIB_GETRUSAGE=0; AC_SUBST([GNULIB_GETRUSAGE]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_GETRUSAGE=1; AC_SUBST([HAVE_GETRUSAGE]) ])