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// $Id: Nullable.cc 2641 2007-09-02 21:31:02Z flaterco $
// Nullable: mix-in to make a data type nullable.
/*
Copyright (C) 2006 David Flater.
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/>.
*/
#include "common.hh"
Nullable::Nullable():
_isNull(true) {}
Nullable::Nullable (bool isNull):
_isNull(isNull) {}
const bool Nullable::isNull() const {
return _isNull;
}
void Nullable::makeNull() {
_isNull = true;
}
// Cleanup2006 Done
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