libport: Added isnan.

This commit is contained in:
Jacek Caban 2008-10-14 16:06:49 -05:00 committed by Alexandre Julliard
parent 71c01bb974
commit 1715dcbb19
6 changed files with 114 additions and 0 deletions

60
configure vendored
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@ -22216,6 +22216,66 @@ _ACEOF
fi
{ echo "$as_me:$LINENO: checking for isnan" >&5
echo $ECHO_N "checking for isnan... $ECHO_C" >&6; }
if test "${ac_cv_have_isnan+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <math.h>
int
main ()
{
float f = 0.0; int i=isnan(f)
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && {
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest$ac_exeext &&
$as_test_x conftest$ac_exeext; then
ac_cv_have_isnan="yes"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_have_isnan="no"
fi
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext conftest.$ac_ext
fi
{ echo "$as_me:$LINENO: result: $ac_cv_have_isnan" >&5
echo "${ECHO_T}$ac_cv_have_isnan" >&6; }
if test "$ac_cv_have_isnan" = "yes"
then
cat >>confdefs.h <<\_ACEOF
#define HAVE_ISNAN 1
_ACEOF
fi
case $host_cpu in
*i[3456789]86*) { echo "$as_me:$LINENO: checking whether we need to define __i386__" >&5

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@ -1663,6 +1663,14 @@ then
AC_DEFINE(HAVE_ISINF, 1, [Define to 1 if you have the `isinf' function.])
fi
dnl Check for isnan
AC_CACHE_CHECK([for isnan], ac_cv_have_isnan,
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]], [[float f = 0.0; int i=isnan(f)]])],[ac_cv_have_isnan="yes"],[ac_cv_have_isnan="no"]))
if test "$ac_cv_have_isnan" = "yes"
then
AC_DEFINE(HAVE_ISNAN, 1, [Define to 1 if you have the `isnan' function.])
fi
dnl *** check for the need to define platform-specific symbols
case $host_cpu in

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@ -258,6 +258,9 @@
/* Define to 1 if you have the `isinf' function. */
#undef HAVE_ISINF
/* Define to 1 if you have the `isnan' function. */
#undef HAVE_ISNAN
/* Define to 1 if you have the <jack/jack.h> header file. */
#undef HAVE_JACK_JACK_H

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@ -303,6 +303,10 @@ pid_t gettid(void);
int isinf(double x);
#endif
#ifndef HAVE_ISNAN
int isnan(double x);
#endif
#ifndef HAVE_LSTAT
int lstat(const char *file_name, struct stat *buf);
#endif /* HAVE_LSTAT */

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@ -16,6 +16,7 @@ C_SRCS = \
gettid.c \
interlocked.c \
isinf.c \
isnan.c \
lstat.c \
memcpy_unaligned.c \
memmove.c \

38
libs/port/isnan.c Normal file
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@ -0,0 +1,38 @@
/*
* isnan function
*
* Copyright 2008 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#ifndef HAVE_ISNAN
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
int isnan(double x)
{
return isnand(x);
}
#else
#error No isnan() implementation available.
#endif
#endif /* HAVE_ISNAN */