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<title>LCOV - lcov.info - /usr/include/c++/4.3/backward/binders.h</title>
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<td class="headerValue" width="80%" colspan=4>lcov.info</td>
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<td class="headerItem" width="20%">Date:</td>
<td class="headerValue" width="20%">2008-08-14</td>
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<td class="headerItem" width="20%">Instrumented lines:</td>
<td class="headerValue" width="20%">7</td>
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<td class="headerValue" width="20%">100.0 %</td>
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<td class="headerValue" width="20%">7</td>
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<td><pre class="source">
<span class="lineNum"> 1 </span> : // Functor implementations -*- C++ -*-
<span class="lineNum"> 2 </span> :
<span class="lineNum"> 3 </span> : // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
<span class="lineNum"> 4 </span> : // Free Software Foundation, Inc.
<span class="lineNum"> 5 </span> : //
<span class="lineNum"> 6 </span> : // This file is part of the GNU ISO C++ Library. This library is free
<span class="lineNum"> 7 </span> : // software; you can redistribute it and/or modify it under the
<span class="lineNum"> 8 </span> : // terms of the GNU General Public License as published by the
<span class="lineNum"> 9 </span> : // Free Software Foundation; either version 2, or (at your option)
<span class="lineNum"> 10 </span> : // any later version.
<span class="lineNum"> 11 </span> :
<span class="lineNum"> 12 </span> : // This library is distributed in the hope that it will be useful,
<span class="lineNum"> 13 </span> : // but WITHOUT ANY WARRANTY; without even the implied warranty of
<span class="lineNum"> 14 </span> : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<span class="lineNum"> 15 </span> : // GNU General Public License for more details.
<span class="lineNum"> 16 </span> :
<span class="lineNum"> 17 </span> : // You should have received a copy of the GNU General Public License along
<span class="lineNum"> 18 </span> : // with this library; see the file COPYING. If not, write to the Free
<span class="lineNum"> 19 </span> : // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
<span class="lineNum"> 20 </span> : // USA.
<span class="lineNum"> 21 </span> :
<span class="lineNum"> 22 </span> : // As a special exception, you may use this file as part of a free software
<span class="lineNum"> 23 </span> : // library without restriction. Specifically, if other files instantiate
<span class="lineNum"> 24 </span> : // templates or use macros or inline functions from this file, or you compile
<span class="lineNum"> 25 </span> : // this file and link it with other files to produce an executable, this
<span class="lineNum"> 26 </span> : // file does not by itself cause the resulting executable to be covered by
<span class="lineNum"> 27 </span> : // the GNU General Public License. This exception does not however
<span class="lineNum"> 28 </span> : // invalidate any other reasons why the executable file might be covered by
<span class="lineNum"> 29 </span> : // the GNU General Public License.
<span class="lineNum"> 30 </span> :
<span class="lineNum"> 31 </span> : /*
<span class="lineNum"> 32 </span> : *
<span class="lineNum"> 33 </span> : * Copyright (c) 1994
<span class="lineNum"> 34 </span> : * Hewlett-Packard Company
<span class="lineNum"> 35 </span> : *
<span class="lineNum"> 36 </span> : * Permission to use, copy, modify, distribute and sell this software
<span class="lineNum"> 37 </span> : * and its documentation for any purpose is hereby granted without fee,
<span class="lineNum"> 38 </span> : * provided that the above copyright notice appear in all copies and
<span class="lineNum"> 39 </span> : * that both that copyright notice and this permission notice appear
<span class="lineNum"> 40 </span> : * in supporting documentation. Hewlett-Packard Company makes no
<span class="lineNum"> 41 </span> : * representations about the suitability of this software for any
<span class="lineNum"> 42 </span> : * purpose. It is provided "as is" without express or implied warranty.
<span class="lineNum"> 43 </span> : *
<span class="lineNum"> 44 </span> : *
<span class="lineNum"> 45 </span> : * Copyright (c) 1996-1998
<span class="lineNum"> 46 </span> : * Silicon Graphics Computer Systems, Inc.
<span class="lineNum"> 47 </span> : *
<span class="lineNum"> 48 </span> : * Permission to use, copy, modify, distribute and sell this software
<span class="lineNum"> 49 </span> : * and its documentation for any purpose is hereby granted without fee,
<span class="lineNum"> 50 </span> : * provided that the above copyright notice appear in all copies and
<span class="lineNum"> 51 </span> : * that both that copyright notice and this permission notice appear
<span class="lineNum"> 52 </span> : * in supporting documentation. Silicon Graphics makes no
<span class="lineNum"> 53 </span> : * representations about the suitability of this software for any
<span class="lineNum"> 54 </span> : * purpose. It is provided "as is" without express or implied warranty.
<span class="lineNum"> 55 </span> : */
<span class="lineNum"> 56 </span> :
<span class="lineNum"> 57 </span> : /** @file backward/binders.h
<span class="lineNum"> 58 </span> : * This is an internal header file, included by other library headers.
<span class="lineNum"> 59 </span> : * You should not attempt to use it directly.
<span class="lineNum"> 60 </span> : */
<span class="lineNum"> 61 </span> :
<span class="lineNum"> 62 </span> : #ifndef _GLIBCXX_BINDERS_H
<span class="lineNum"> 63 </span> : #define _GLIBCXX_BINDERS_H 1
<span class="lineNum"> 64 </span> :
<span class="lineNum"> 65 </span> : _GLIBCXX_BEGIN_NAMESPACE(std)
<span class="lineNum"> 66 </span> :
<span class="lineNum"> 67 </span> : // 20.3.6 binders
<span class="lineNum"> 68 </span> : /** @defgroup s20_3_6_binder Binder Classes
<span class="lineNum"> 69 </span> : * Binders turn functions/functors with two arguments into functors with
<span class="lineNum"> 70 </span> : * a single argument, storing an argument to be applied later. For
<span class="lineNum"> 71 </span> : * example, a variable @c B of type @c binder1st is constructed from a
<span class="lineNum"> 72 </span> : * functor @c f and an argument @c x. Later, B's @c operator() is called
<span class="lineNum"> 73 </span> : * with a single argument @c y. The return value is the value of @c f(x,y).
<span class="lineNum"> 74 </span> : * @c B can be "called" with various arguments (y1, y2, ...) and will in
<span class="lineNum"> 75 </span> : * turn call @c f(x,y1), @c f(x,y2), ...
<span class="lineNum"> 76 </span> : *
<span class="lineNum"> 77 </span> : * The function @c bind1st is provided to save some typing. It takes the
<span class="lineNum"> 78 </span> : * function and an argument as parameters, and returns an instance of
<span class="lineNum"> 79 </span> : * @c binder1st.
<span class="lineNum"> 80 </span> : *
<span class="lineNum"> 81 </span> : * The type @c binder2nd and its creator function @c bind2nd do the same
<span class="lineNum"> 82 </span> : * thing, but the stored argument is passed as the second parameter instead
<span class="lineNum"> 83 </span> : * of the first, e.g., @c bind2nd(std::minus<float>,1.3) will create a
<span class="lineNum"> 84 </span> : * functor whose @c operator() accepts a floating-point number, subtracts
<span class="lineNum"> 85 </span> : * 1.3 from it, and returns the result. (If @c bind1st had been used,
<span class="lineNum"> 86 </span> : * the functor would perform "1.3 - x" instead.
<span class="lineNum"> 87 </span> : *
<span class="lineNum"> 88 </span> : * Creator-wrapper functions like @c bind1st are intended to be used in
<span class="lineNum"> 89 </span> : * calling algorithms. Their return values will be temporary objects.
<span class="lineNum"> 90 </span> : * (The goal is to not require you to type names like
<span class="lineNum"> 91 </span> : * @c std::binder1st<std::plus<int>> for declaring a variable to hold the
<span class="lineNum"> 92 </span> : * return value from @c bind1st(std::plus<int>,5).
<span class="lineNum"> 93 </span> : *
<span class="lineNum"> 94 </span> : * These become more useful when combined with the composition functions.
<span class="lineNum"> 95 </span> : *
<span class="lineNum"> 96 </span> : * @{
<span class="lineNum"> 97 </span> : */
<span class="lineNum"> 98 </span> : /// One of the @link s20_3_6_binder binder functors@endlink.
<span class="lineNum"> 99 </span> : template<typename _Operation>
<span class="lineNum"> 100 </span> : class binder1st
<span class="lineNum"> 101 </span> : : public unary_function<typename _Operation::second_argument_type,
<span class="lineNum"> 102 </span> : typename _Operation::result_type>
<span class="lineNum"> 103 </span><span class="lineCov"> 16 : {</span>
<span class="lineNum"> 104 </span> : protected:
<span class="lineNum"> 105 </span> : _Operation op;
<span class="lineNum"> 106 </span> : typename _Operation::first_argument_type value;
<span class="lineNum"> 107 </span> :
<span class="lineNum"> 108 </span> : public:
<span class="lineNum"> 109 </span> : binder1st(const _Operation& __x,
<span class="lineNum"> 110 </span><span class="lineCov"> 19 : const typename _Operation::first_argument_type& __y)</span>
<span class="lineNum"> 111 </span><span class="lineCov"> 19 : : op(__x), value(__y) { }</span>
<span class="lineNum"> 112 </span> :
<span class="lineNum"> 113 </span> : typename _Operation::result_type
<span class="lineNum"> 114 </span><span class="lineCov"> 70 : operator()(const typename _Operation::second_argument_type& __x) const</span>
<span class="lineNum"> 115 </span><span class="lineCov"> 70 : { return op(value, __x); }</span>
<span class="lineNum"> 116 </span> :
<span class="lineNum"> 117 </span> : // _GLIBCXX_RESOLVE_LIB_DEFECTS
<span class="lineNum"> 118 </span> : // 109. Missing binders for non-const sequence elements
<span class="lineNum"> 119 </span> : typename _Operation::result_type
<span class="lineNum"> 120 </span> : operator()(typename _Operation::second_argument_type& __x) const
<span class="lineNum"> 121 </span> : { return op(value, __x); }
<span class="lineNum"> 122 </span> : } _GLIBCXX_DEPRECATED_ATTR;
<span class="lineNum"> 123 </span> :
<span class="lineNum"> 124 </span> : /// One of the @link s20_3_6_binder binder functors@endlink.
<span class="lineNum"> 125 </span> : template<typename _Operation, typename _Tp>
<span class="lineNum"> 126 </span> : inline binder1st<_Operation>
<span class="lineNum"> 127 </span><span class="lineCov"> 19 : bind1st(const _Operation& __fn, const _Tp& __x)</span>
<span class="lineNum"> 128 </span> : {
<span class="lineNum"> 129 </span> : typedef typename _Operation::first_argument_type _Arg1_type;
<span class="lineNum"> 130 </span><span class="lineCov"> 19 : return binder1st<_Operation>(__fn, _Arg1_type(__x));</span>
<span class="lineNum"> 131 </span> : }
<span class="lineNum"> 132 </span> :
<span class="lineNum"> 133 </span> : /// One of the @link s20_3_6_binder binder functors@endlink.
<span class="lineNum"> 134 </span> : template<typename _Operation>
<span class="lineNum"> 135 </span> : class binder2nd
<span class="lineNum"> 136 </span> : : public unary_function<typename _Operation::first_argument_type,
<span class="lineNum"> 137 </span> : typename _Operation::result_type>
<span class="lineNum"> 138 </span> : {
<span class="lineNum"> 139 </span> : protected:
<span class="lineNum"> 140 </span> : _Operation op;
<span class="lineNum"> 141 </span> : typename _Operation::second_argument_type value;
<span class="lineNum"> 142 </span> :
<span class="lineNum"> 143 </span> : public:
<span class="lineNum"> 144 </span> : binder2nd(const _Operation& __x,
<span class="lineNum"> 145 </span> : const typename _Operation::second_argument_type& __y)
<span class="lineNum"> 146 </span> : : op(__x), value(__y) { }
<span class="lineNum"> 147 </span> :
<span class="lineNum"> 148 </span> : typename _Operation::result_type
<span class="lineNum"> 149 </span> : operator()(const typename _Operation::first_argument_type& __x) const
<span class="lineNum"> 150 </span> : { return op(__x, value); }
<span class="lineNum"> 151 </span> :
<span class="lineNum"> 152 </span> : // _GLIBCXX_RESOLVE_LIB_DEFECTS
<span class="lineNum"> 153 </span> : // 109. Missing binders for non-const sequence elements
<span class="lineNum"> 154 </span> : typename _Operation::result_type
<span class="lineNum"> 155 </span> : operator()(typename _Operation::first_argument_type& __x) const
<span class="lineNum"> 156 </span> : { return op(__x, value); }
<span class="lineNum"> 157 </span> : } _GLIBCXX_DEPRECATED_ATTR;
<span class="lineNum"> 158 </span> :
<span class="lineNum"> 159 </span> : /// One of the @link s20_3_6_binder binder functors@endlink.
<span class="lineNum"> 160 </span> : template<typename _Operation, typename _Tp>
<span class="lineNum"> 161 </span> : inline binder2nd<_Operation>
<span class="lineNum"> 162 </span> : bind2nd(const _Operation& __fn, const _Tp& __x)
<span class="lineNum"> 163 </span> : {
<span class="lineNum"> 164 </span> : typedef typename _Operation::second_argument_type _Arg2_type;
<span class="lineNum"> 165 </span> : return binder2nd<_Operation>(__fn, _Arg2_type(__x));
<span class="lineNum"> 166 </span> : }
<span class="lineNum"> 167 </span> : /** @} */
<span class="lineNum"> 168 </span> :
<span class="lineNum"> 169 </span> : _GLIBCXX_END_NAMESPACE
<span class="lineNum"> 170 </span> :
<span class="lineNum"> 171 </span> : #endif /* _GLIBCXX_BINDERS_H */
</pre>
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<tr><td class="versionInfo">Generated by: <a href="http://ltp.sourceforge.net/coverage/lcov.php" target="_parent">LTP GCOV extension version 1.6</a></td></tr>
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