autoflag.h
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/***********************************************************************
Copyright © 2007 by Educational Technology Resources, Inc.
Others may also hold copyrights on code in this file. See the
CREDITS.txt file in the top directory of the distribution for details.
This file is part of MySQL++.
MySQL++ is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
MySQL++ 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with MySQL++; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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***********************************************************************/
#if !defined(MYSQLPP_AUTOFLAG_H)
#define MYSQLPP_AUTOFLAG_H
namespace mysqlpp {
template <class T = bool>
class AutoFlag
{
public:
AutoFlag(T& ref) :
referent_(ref)
{
referent_ = true;
}
~AutoFlag()
{
referent_ = false;
}
private:
T& referent_;
};
} // end namespace mysqlpp
#endif // !defined(MYSQLPP_AUTOFLAG_H)
mysqlpp::AutoFlag
A template for setting a flag on a variable as long as the object that set it is in scope...
Definition: autoflag.h:38
mysqlpp::AutoFlag::~AutoFlag
~AutoFlag()
Destructor: sets referent passed to ctor to false.
Definition: autoflag.h:49
mysqlpp::AutoFlag::AutoFlag
AutoFlag(T &ref)
Constructor: sets ref to true.
Definition: autoflag.h:42