/usr/include/ETL/_trivial.h is in etl-dev 0.04.17-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | /*! ========================================================================
** Extended Template Library
** Trivializing Template Class Implementation
** $Id$
**
** Copyright (c) 2002 Robert B. Quattlebaum Jr.
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
**
** === N O T E S ===========================================================
**
** This is an internal header file, included by other ETL headers.
** You should not attempt to use it directly.
**
** ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __ETL__TRIVIAL_H
#define __ETL__TRIVIAL_H
/* === H E A D E R S ======================================================= */
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
_ETL_BEGIN_NAMESPACE
/*! ========================================================================
** \class Trivial
** \brief Trivializes the constructor of a given class
**
** This class makes the given type 'trivial',
** effectively disabling the constructor and
** destructor. (This is useful for unions)
** Some extra casting may be necessary to get
** it to work properly.
*/
template <class T>
class trivial
{
typedef T value_type;
typedef T& reference;
typedef const T& const_reference;
typedef T* pointer;
typedef const T* const_pointer;
char data[sizeof(T)];
public:
operator reference()
{ return *reinterpret_cast<pointer>(data); }
// HACK - Rather dangerous
//operator reference()const
//{ return *reinterpret_cast<pointer>(const_cast<char *>(data)); }
operator const_reference()const
{ return *reinterpret_cast<const_pointer>(data); }
reference get()
{ return *reinterpret_cast<pointer>(data); }
const_reference get()const
{ return *reinterpret_cast<const_pointer>(data); }
void construct()
{ new(&get()) value_type(); }
void destruct()
{ get().~value_type(); }
void destroy() { destruct(); }
template<class U> reference
operator=(const U &rhs)
{ return get()=rhs; }
template<class U>reference
operator=(const trivial<U> &rhs)
{ return get()=rhs.get(); }
template<class U> reference
operator+=(const U &rhs)
{ return get()+=rhs; }
template<class U> reference
operator-=(const U &rhs)
{ return get()-=rhs; }
template<class U> reference
operator*=(const U &rhs)
{ return get()*=rhs; }
template<class U> reference
operator/=(const U &rhs)
{ return get()/=rhs; }
template<class U> reference
operator%=(const U &rhs)
{ return get()%=rhs; }
template<class U> reference
operator^=(const U &rhs)
{ return get()^=rhs; }
template<class U> reference
operator&=(const U &rhs)
{ return get()&=rhs; }
template<class U> reference
operator>>=(const U &rhs)
{ return get()>>=rhs; }
template<class U> reference
operator<<=(const U &rhs)
{ return get()<<=rhs; }
operator bool()const
{ return get(); }
bool operator!()const
{ return !get(); }
}; // END of template class trivial
_ETL_END_NAMESPACE
//#include <iostream>
/*
template<typename T, typename _CharT, class _Traits> std::basic_istream<_CharT, _Traits>&
operator>>(std::basic_istream<_CharT, _Traits>& s, etl::trivial<T>& rhs)
{ return s>>(T)(rhs); }
template<typename T,typename _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>&
operator<<(std::basic_ostream<_CharT, _Traits>& s, const etl::trivial<T>& rhs)
{ return s<<(T)(rhs); }
*/
/*
template<typename T> std::istream&
operator>>(std::istream& s, etl::trivial<T>& rhs)
{ return s>>(T)(rhs); }
template<typename T> std::ostream&
operator<<(std::ostream& s, const etl::trivial<T>& rhs)
{ return s<<(T)(rhs); }
*/
/* === E X T E R N S ======================================================= */
/* === E N D =============================================================== */
#endif
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