noop: Set svn:eol-style to native on all .cpp and .h files under src. (find \( ...

[inkscape.git] / src / 2geom / isnan.h

diff --git a/src/2geom/isnan.h b/src/2geom/isnan.h
index 96a70f6dcf5c1939cfe5d6874c1796ef1b797d06..b4e7341ff8032791a10254944f16c3bbbc0ca99d 100644 (file)
--- a/src/2geom/isnan.h
+++ b/src/2geom/isnan.h
@@ -1,3 +1,37 @@
+/**
+ * \file
+ * \brief  \todo brief description
+ *
+ * Authors:
+ *      ? <?@?.?>
+ * 
+ * Copyright ?-?  authors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ */
+
 #ifndef _2GEOM_ISNAN_H__
 #define _2GEOM_ISNAN_H__
 
@@ -16,11 +50,11 @@
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  *
- * 2005 modification hereby placed in public domain.  Probably supercedes the 2004 copyright
- * for the code itself.
+ * 2005 modification hereby placed in public domain.  Probably supercedes 
+ * the 2004 copyright for the code itself.
  */
 
-#include <cmath>
+#include <math.h>
 /* You might try changing the above to <cmath> if you have problems.
  * Whether you use math.h or cmath, you may need to edit the .cpp file
  * and/or other .h files to use the same header file.
@@ -32,7 +66,9 @@
 # define IS_NAN(_a) (__isnan(_a))      /* MacOSX/Darwin definition < 10.4 */
 #elif defined(WIN32) || defined(_isnan)
 # define IS_NAN(_a) (_isnan(_a))       /* Win32 definition */
-#elif defined(isnan) || defined(__FreeBSD__)
+#elif defined(isnan) || defined(__FreeBSD__) || defined(__osf__)
+# define IS_NAN(_a) (isnan(_a))                /* GNU definition */
+#elif defined (SOLARIS_2_8) && __GNUC__ == 3 && __GNUC_MINOR__ == 2
 # define IS_NAN(_a) (isnan(_a))                /* GNU definition */
 #else
 # define IS_NAN(_a) (std::isnan(_a))
@@ -47,12 +83,20 @@
 # define IS_FINITE(_a) (__isfinite(_a))
 #elif defined(__APPLE__) && __GNUC__ == 3
 # define IS_FINITE(_a) (__isfinite(_a))        /* MacOSX/Darwin definition < 10.4 */
+#elif defined(__sgi)
+# define IS_FINITE(_a) (_isfinite(_a))
 #elif defined(isfinite)
 # define IS_FINITE(_a) (isfinite(_a))
+#elif defined(__osf__)
+# define IS_FINITE(_a) (finite(_a) && !IS_NAN(_a))
+#elif defined (SOLARIS_2_8) && __GNUC__ == 3 && __GNUC_MINOR__ == 2
+#include  <ieeefp.h>
+#define IS_FINITE(_a) (finite(_a) && !IS_NAN(_a))
 #else
 # define IS_FINITE(_a) (std::isfinite(_a))
 #endif
-/* If the above doesn't work, then try (finite(_a) && !isNaN(_a)) or (!isNaN((_a) - (_a))).
+/* If the above doesn't work, then try (finite(_a) && !IS_NAN(_a)) or 
+ * (!IS_NAN((_a) - (_a))).
  * Also, please report a bug as per http://www.inkscape.org/report_bugs.php,
  * giving information about what platform and compiler version you're using.
  */