changeset 6403:5011ac2fc23d

[project @ 2007-03-13 14:45:51 by jwe]
author jwe
date Tue, 13 Mar 2007 14:46:02 +0000
parents fe9817a6ee98
children 2005c0169e36
files scripts/ChangeLog scripts/miscellaneous/cast.m
diffstat 2 files changed, 58 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/scripts/ChangeLog	Tue Mar 13 02:25:31 2007 +0000
+++ b/scripts/ChangeLog	Tue Mar 13 14:46:02 2007 +0000
@@ -1,3 +1,15 @@
+2007-03-13  John W. Eaton  <jwe@octave.org>
+
+	* miscellaneous/cast.m: Use feval and strcmp with cell to check
+	arg instead of switch statement.
+	From Søren Hauberg <soren@hauberg.org>
+
+2007-03-12  John W. Eaton  <jwe@octave.org>
+
+	* miscellaneous/cast.m: New function.
+
+	* miscellaneous/delete.m: Call __go_delete__, not __uiobject_delete__.
+
 2007-03-08  John W. Eaton  <jwe@octave.org>
 
 	* miscellaneous/copyfile.m, miscellaneous/movefile.m: Perform
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/miscellaneous/cast.m	Tue Mar 13 14:46:02 2007 +0000
@@ -0,0 +1,46 @@
+## Copyright (C) 2007 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} cast (@var{val}, @var{type})
+## Convert @var{val} to data type @var{type}.
+## @seealso{int8, uint8, int16, uint16, int32, uint32, int64, uint64, double}
+## @end deftypefn
+
+## Author: jwe
+
+function retval = cast (val, typ)
+
+  if (nargin == 2)
+    if (ischar (typ))
+      if (any (strcmp (typ, {"int8"; "uint8"; "int16"; "uint16";
+			     "int32"; "uint32"; "int64"; "uint64";
+			     "double"; "single"})))
+	retval = feval (typ, val);
+      else
+	error ("cast: type name `%s' is not a built-in type", typ);
+      endif
+    else
+      error ("cast: expecting type name as second argument");
+    endif
+  else
+    print_usage ();
+  endif
+
+endfunction