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-- Copyright 2021-2023 Free Software Foundation, Inc.
--
-- 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 3 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/>.
package body Twovecs is
function Pt (X, Y : My_Integer) return Twovec is
begin
return Twovec'(X, Y);
end Pt;
function "+" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X + P1.X, P0.Y + P1.Y);
end "+";
function "-" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X - P1.X, P0.Y - P1.Y);
end "-";
function "*" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X * P1.X, P0.Y * P1.Y);
end "*";
function "/" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X / P1.X, P0.Y / P1.Y);
end "/";
function "mod" (P0, P1 : Twovec) return Twovec is
begin
-- Make sure we get a different answer than "-".
return Twovec' (17, 18);
end "mod";
function "rem" (P0, P1 : Twovec) return Twovec is
begin
-- Make sure we get a different answer than "-".
return Twovec' (38, 39);
end "rem";
function "**" (P0, P1 : Twovec) return Twovec is
begin
-- It just has to do something recognizable.
return Twovec' (20 * P0.X + P1.X, 20 * P0.Y + P1.Y);
end "**";
function "<" (P0, P1 : Twovec) return Boolean is
begin
return P0.X < P1.X and then P0.Y < P1.Y;
end "<";
function "<=" (P0, P1 : Twovec) return Boolean is
begin
return P0.X <= P1.X and then P0.Y <= P1.Y;
end "<=";
function ">" (P0, P1 : Twovec) return Boolean is
begin
return P0.X > P1.X and then P0.Y > P1.Y;
end ">";
function ">=" (P0, P1 : Twovec) return Boolean is
begin
return P0.X >= P1.X and then P0.Y >= P1.Y;
end ">=";
function "=" (P0, P1 : Twovec) return Boolean is
begin
return P0.X = P1.X and then P0.Y = P1.Y;
end "=";
function "and" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X and P1.X, P0.Y and P1.Y);
end "and";
function "or" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X or P1.X, P0.Y or P1.Y);
end "or";
function "xor" (P0, P1 : Twovec) return Twovec is
begin
return Twovec' (P0.X xor P1.X, P0.Y xor P1.Y);
end "xor";
function "&" (P0, P1 : Twovec) return Twovec is
begin
-- It just has to do something recognizable.
return Twovec' (10 * P0.X + P1.X, 10 * P0.Y + P1.Y);
end "&";
function "abs" (P0 : Twovec) return Twovec is
begin
return Twovec' (abs (P0.X), abs (P0.Y));
end "abs";
function "not" (P0 : Twovec) return Twovec is
begin
return Twovec' (not (P0.X), not (P0.Y));
end "not";
function "+" (P0 : Twovec) return Twovec is
begin
-- It just has to do something recognizable.
return Twovec' (+ (P0.Y), + (P0.X));
end "+";
function "-" (P0 : Twovec) return Twovec is
begin
return Twovec' (- (P0.X), - (P0.Y));
end "-";
procedure Do_Nothing (P : Twovec) is
begin
null;
end Do_Nothing;
end Twovecs;
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