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1 | /*
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2 | Printable.h - Interface class that allows printing of complex types
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3 | Copyright (c) 2011 Adrian McEwen. All right reserved.
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4 |
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5 | This library is free software; you can redistribute it and/or
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6 | modify it under the terms of the GNU Lesser General Public
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7 | License as published by the Free Software Foundation; either
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8 | version 2.1 of the License, or (at your option) any later version.
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9 |
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10 | This library is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | Lesser General Public License for more details.
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14 |
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15 | You should have received a copy of the GNU Lesser General Public
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16 | License along with this library; if not, write to the Free Software
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17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18 | */
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19 |
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20 | #ifndef Printable_h
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21 | #define Printable_h
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22 |
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23 | #include <stdlib.h>
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24 |
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25 | class Print;
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26 |
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27 | /** The Printable class provides a way for new classes to allow themselves to be printed.
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28 | By deriving from Printable and implementing the printTo method, it will then be possible
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29 | for users to print out instances of this class by passing them into the usual
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30 | Print::print and Print::println methods.
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31 | */
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32 |
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33 | class Printable
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34 | {
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35 | public:
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36 | virtual size_t printTo(Print& p) const = 0;
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37 | };
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38 |
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39 | #endif
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40 |
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