35 lines
1.3 KiB
Text
35 lines
1.3 KiB
Text
% Copyright (c) 2010 Jerry James.
|
|
%
|
|
% Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
% of this software and associated documentation files (the "Software"), to deal
|
|
% in the Software without restriction, including without limitation the rights
|
|
% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
% copies of the Software, and to permit persons to whom the Software is
|
|
% furnished to do so, subject to the following conditions:
|
|
%
|
|
% The above copyright notice and this permission notice shall be included in
|
|
% all copies or substantial portions of the Software.
|
|
%
|
|
% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
% THE SOFTWARE.
|
|
|
|
rem: THEORY
|
|
BEGIN
|
|
|
|
x : VAR int
|
|
nzy : VAR nzint
|
|
|
|
rem(x, nzy): int =
|
|
IF (x >= 0 AND nzy > 0) THEN rem(nzy)(x)
|
|
ELSIF (x >= 0 AND nzy < 0) THEN rem(-nzy)(x)
|
|
ELSIF (x < 0 AND nzy > 0) THEN -rem(nzy)(-x)
|
|
ELSE -rem(-nzy)(-x)
|
|
ENDIF
|
|
|
|
END rem
|
|
|