Mercurial > hg > octave-lyh > gnulib-hg
changeset 5980:5375b994ef54
Make it work also if size_t is smaller than unsigned int.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 11 Jul 2005 11:29:40 +0000 |
parents | 5cc92ab8ce76 |
children | 09850e201e79 |
files | m4/ChangeLog m4/size_max.m4 |
diffstat | 2 files changed, 11 insertions(+), 5 deletions(-) [+] |
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--- a/m4/ChangeLog +++ b/m4/ChangeLog @@ -1,3 +1,9 @@ +2005-07-10 Bruno Haible <bruno@clisp.org> + + * size_max.m4 (gl_SIZE_MAX): Cast ~(size_t)0 back to size_t. + Needed when size_t is smaller than 'unsigned int'. + Reported by Paul Eggert. + 2005-07-07 Paul Eggert <eggert@cs.ucla.edu> * backupfile.m4 (gl_BACKUPFILE): Use AC_CHECK_FUNCS_ONCE on pathconf.
--- a/m4/size_max.m4 +++ b/m4/size_max.m4 @@ -1,5 +1,5 @@ -# size_max.m4 serial 2 -dnl Copyright (C) 2003 Free Software Foundation, Inc. +# size_max.m4 serial 3 +dnl Copyright (C) 2003, 2005 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. @@ -26,9 +26,9 @@ dnl than the type 'unsigned long'. dnl The _AC_COMPUTE_INT macro works up to LONG_MAX, since it uses 'expr', dnl which is guaranteed to work from LONG_MIN to LONG_MAX. - _AC_COMPUTE_INT([~(size_t)0 / 10], res_hi, + _AC_COMPUTE_INT([(size_t)~(size_t)0 / 10], res_hi, [#include <stddef.h>], result=?) - _AC_COMPUTE_INT([~(size_t)0 % 10], res_lo, + _AC_COMPUTE_INT([(size_t)~(size_t)0 % 10], res_lo, [#include <stddef.h>], result=?) _AC_COMPUTE_INT([sizeof (size_t) <= sizeof (unsigned int)], fits_in_uint, [#include <stddef.h>], result=?) @@ -48,7 +48,7 @@ fi else dnl Shouldn't happen, but who knows... - result='~(size_t)0' + result='((size_t)~(size_t)0)' fi fi AC_MSG_RESULT([$result])