diff liboctave/lo-utils.cc @ 1967:4cb6aaa0f2c7

[project @ 1996-02-17 02:54:24 by jwe] Initial revision
author jwe
date Sat, 17 Feb 1996 02:54:24 +0000
parents
children 1b57120c997b
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/liboctave/lo-utils.cc	Sat Feb 17 02:54:24 1996 +0000
@@ -0,0 +1,61 @@
+// utils.cc                                              -*- C++ -*-
+/*
+
+Copyright (C) 1996 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <climits>
+
+#include "lo-mappers.h"
+#include "lo-utils.h"
+
+// Convert X to the nearest integer value.  Should not pass NaN to
+// this function.
+
+int
+NINT (double x)
+{
+  if (x > INT_MAX)
+    return INT_MAX;
+  else if (x < INT_MIN)
+    return INT_MIN;
+  else
+    return (x > 0) ? ((int) (x + 0.5)) : ((int) (x - 0.5));
+}
+
+double
+D_NINT (double x)
+{
+  if (xisinf (x) || xisnan (x))
+    return x;
+  else
+    return floor (x + 0.5);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/