Learn how easy it is to sync an existing GitHub or Google Code repo to a SourceForge project! See Demo

Close

Diff of /inst/@gf/private/modn.m [000000] .. [05b386] Maximize Restore

  Switch to side-by-side view

--- a
+++ b/inst/@gf/private/modn.m
@@ -0,0 +1,29 @@
+## Copyright (C) 2011 David Bateman
+##
+## This program 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 of the License, or
+## (at your option) any later version.
+##
+## This program 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 this program; If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} {@var{y} =} modn (@var{x}, @var{m}, @var{n})
+## Undocumented internal function
+## @end deftypefn
+
+function y = modn (x, m, n)
+  idx = x >= n;
+  while (any (idx))
+    x(idx) -= n;
+    x(idx) = bitshift(x(idx), -m) + bitand (x(idx), n);
+    idx = x >= n;
+  endwhile
+  y = x;
+endfunction