Mercurial > gnulib
view m4/fileblocks.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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# fileblocks.m4 serial 6 dnl Copyright (C) 2002, 2005-2006, 2009-2019 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_FILEBLOCKS], [ m4_pushdef([AC_LIBOBJ], [:]) dnl Note: AC_STRUCT_ST_BLOCKS does AC_LIBOBJ([fileblocks]). AC_STRUCT_ST_BLOCKS m4_popdef([AC_LIBOBJ]) dnl The stat-size module depends on this one and also assumes that dnl HAVE_STRUCT_STAT_ST_BLOCKS is correctly defined. So if you dnl remove the call above, please make sure that this does not dnl introduce a bug into lib/stat-size.h. ]) # Prerequisites of lib/fileblocks.c. AC_DEFUN([gl_PREREQ_FILEBLOCKS], [ AC_CHECK_HEADERS_ONCE([sys/param.h]) : ])