45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// include/scoped_true.hh
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// This file is part of libpbe; see http://svn.chezphil.org/libpbe/
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// (C) 2008 Philip Endecott
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#ifndef pbe_scoped_true_hh
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#define pbe_scoped_true_hh
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// This file provides a simple class that sets a boolean to true when it
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// is constructed and to false when it is destructed.
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namespace pbe {
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class scoped_true {
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bool& var;
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public:
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scoped_true(bool& var_):
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var(var_)
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{
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var = true;
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}
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~scoped_true() {
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var = false;
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}
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};
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};
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#endif
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