| 1 | // This may look like C code, but it is really -*- C++ -*-
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| 2 | /*
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| 3 | Copyright (C) 1988 Free Software Foundation
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| 4 | written by Doug Lea ([email protected])
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| 5 |
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| 6 | This file is part of the GNU C++ Library. This library is free
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| 7 | software; you can redistribute it and/or modify it under the terms of
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| 8 | the GNU Library General Public License as published by the Free
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| 9 | Software Foundation; either version 2 of the License, or (at your
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| 10 | option) any later version. This library is distributed in the hope
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| 11 | that it will be useful, but WITHOUT ANY WARRANTY; without even the
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| 12 | implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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| 13 | PURPOSE. See the GNU Library General Public License for more details.
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| 14 | You should have received a copy of the GNU Library General Public
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| 15 | License along with this library; if not, write to the Free Software
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| 16 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 17 | */
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| 18 |
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| 19 | #ifdef __GNUG__
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| 20 | #pragma implementation
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| 21 | #endif
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| 22 | #include <builtin.h>
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| 23 | #include "<T>.PQ.h"
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| 24 |
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| 25 |
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| 26 |
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| 27 | <T> <T>PQ::deq()
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| 28 | {
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| 29 | <T> x = front();
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| 30 | del_front();
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| 31 | return x;
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| 32 | }
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| 33 |
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| 34 | Pix <T>PQ::seek(<T&> item)
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| 35 | {
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| 36 | Pix i;
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| 37 | for (i = first(); i != 0 && !(<T>EQ((*this)(i), item)); next(i));
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| 38 | return i;
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| 39 | }
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| 40 |
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| 41 | int <T>PQ::owns(Pix idx)
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| 42 | {
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| 43 | if (idx == 0) return 0;
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| 44 | for (Pix i = first(); i; next(i)) if (i == idx) return 1;
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| 45 | return 0;
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| 46 | }
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| 47 |
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| 48 | void <T>PQ::clear()
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| 49 | {
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| 50 | while (count != 0) del_front();
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| 51 | }
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| 52 |
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| 53 | int <T>PQ::contains (<T&> item)
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| 54 | {
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| 55 | return seek(item) != 0;
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| 56 | }
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| 57 |
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| 58 |
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| 59 | void <T>PQ::error(const char* msg)
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| 60 | {
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| 61 | (*lib_error_handler)("PQ", msg);
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| 62 | }
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| 63 |
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