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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
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/*
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Printable.h - Interface class that allows printing of complex types
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Copyright (c) 2011 Adrian McEwen. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef Printable_h
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#define Printable_h
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#include <stdlib.h>
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class Print;
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/** The Printable class provides a way for new classes to allow themselves to be printed.
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By deriving from Printable and implementing the printTo method, it will then be possible
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for users to print out instances of this class by passing them into the usual
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Print::print and Print::println methods.
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*/
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class Printable
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{
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public:
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virtual ~Printable() {}
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virtual size_t printTo(Print& p) const = 0;
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};
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#endif
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