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Diffstat (limited to 'contrib/libstdc++/include/bits/mask_array.h')
-rw-r--r-- | contrib/libstdc++/include/bits/mask_array.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/contrib/libstdc++/include/bits/mask_array.h b/contrib/libstdc++/include/bits/mask_array.h deleted file mode 100644 index 98c8bfb36e3c..000000000000 --- a/contrib/libstdc++/include/bits/mask_array.h +++ /dev/null @@ -1,204 +0,0 @@ -// The template and inlines for the -*- C++ -*- mask_array class. - -// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005 -// Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library 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, or (at your option) -// any later version. - -// This library 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. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -/** @file mask_array.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr> - -#ifndef _MASK_ARRAY_H -#define _MASK_ARRAY_H 1 - -#pragma GCC system_header - -_GLIBCXX_BEGIN_NAMESPACE(std) - - /** - * @brief Reference to selected subset of an array. - * - * A mask_array is a reference to the actual elements of an array specified - * by a bitmask in the form of an array of bool. The way to get a - * mask_array is to call operator[](valarray<bool>) on a valarray. The - * returned mask_array then permits carrying operations out on the - * referenced subset of elements in the original valarray. - * - * For example, if a mask_array is obtained using the array (false, true, - * false, true) as an argument, the mask array has two elements referring - * to array[1] and array[3] in the underlying array. - * - * @param Tp Element type. - */ - template <class _Tp> - class mask_array - { - public: - typedef _Tp value_type; - - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 253. valarray helper functions are almost entirely useless - - /// Copy constructor. Both slices refer to the same underlying array. - mask_array (const mask_array&); - - /// Assignment operator. Assigns elements to corresponding elements - /// of @a a. - mask_array& operator=(const mask_array&); - - void operator=(const valarray<_Tp>&) const; - /// Multiply slice elements by corresponding elements of @a v. - void operator*=(const valarray<_Tp>&) const; - /// Divide slice elements by corresponding elements of @a v. - void operator/=(const valarray<_Tp>&) const; - /// Modulo slice elements by corresponding elements of @a v. - void operator%=(const valarray<_Tp>&) const; - /// Add corresponding elements of @a v to slice elements. - void operator+=(const valarray<_Tp>&) const; - /// Subtract corresponding elements of @a v from slice elements. - void operator-=(const valarray<_Tp>&) const; - /// Logical xor slice elements with corresponding elements of @a v. - void operator^=(const valarray<_Tp>&) const; - /// Logical and slice elements with corresponding elements of @a v. - void operator&=(const valarray<_Tp>&) const; - /// Logical or slice elements with corresponding elements of @a v. - void operator|=(const valarray<_Tp>&) const; - /// Left shift slice elements by corresponding elements of @a v. - void operator<<=(const valarray<_Tp>&) const; - /// Right shift slice elements by corresponding elements of @a v. - void operator>>=(const valarray<_Tp>&) const; - /// Assign all slice elements to @a t. - void operator=(const _Tp&) const; - - // ~mask_array (); - - template<class _Dom> - void operator=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator*=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator/=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator%=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator+=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator-=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator^=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator&=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator|=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator<<=(const _Expr<_Dom,_Tp>&) const; - template<class _Dom> - void operator>>=(const _Expr<_Dom,_Tp>&) const; - - private: - mask_array(_Array<_Tp>, size_t, _Array<bool>); - friend class valarray<_Tp>; - - const size_t _M_sz; - const _Array<bool> _M_mask; - const _Array<_Tp> _M_array; - - // not implemented - mask_array(); - }; - - template<typename _Tp> - inline mask_array<_Tp>::mask_array(const mask_array<_Tp>& a) - : _M_sz(a._M_sz), _M_mask(a._M_mask), _M_array(a._M_array) {} - - template<typename _Tp> - inline - mask_array<_Tp>::mask_array(_Array<_Tp> __a, size_t __s, _Array<bool> __m) - : _M_sz(__s), _M_mask(__m), _M_array(__a) {} - - template<typename _Tp> - inline mask_array<_Tp>& - mask_array<_Tp>::operator=(const mask_array<_Tp>& __a) - { - std::__valarray_copy(__a._M_array, __a._M_mask, - _M_sz, _M_array, _M_mask); - return *this; - } - - template<typename _Tp> - inline void - mask_array<_Tp>::operator=(const _Tp& __t) const - { std::__valarray_fill(_M_array, _M_sz, _M_mask, __t); } - - template<typename _Tp> - inline void - mask_array<_Tp>::operator=(const valarray<_Tp>& __v) const - { std::__valarray_copy(_Array<_Tp>(__v), __v.size(), _M_array, _M_mask); } - - template<typename _Tp> - template<class _Ex> - inline void - mask_array<_Tp>::operator=(const _Expr<_Ex, _Tp>& __e) const - { std::__valarray_copy(__e, __e.size(), _M_array, _M_mask); } - -#undef _DEFINE_VALARRAY_OPERATOR -#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ - template<typename _Tp> \ - inline void \ - mask_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ - { \ - _Array_augmented_##_Name(_M_array, _M_mask, \ - _Array<_Tp>(__v), __v.size()); \ - } \ - \ - template<typename _Tp> \ - template<class _Dom> \ - inline void \ - mask_array<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) const\ - { \ - _Array_augmented_##_Name(_M_array, _M_mask, __e, __e.size()); \ - } - -_DEFINE_VALARRAY_OPERATOR(*, __multiplies) -_DEFINE_VALARRAY_OPERATOR(/, __divides) -_DEFINE_VALARRAY_OPERATOR(%, __modulus) -_DEFINE_VALARRAY_OPERATOR(+, __plus) -_DEFINE_VALARRAY_OPERATOR(-, __minus) -_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) -_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) -_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) -_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) -_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) - -#undef _DEFINE_VALARRAY_OPERATOR - -_GLIBCXX_END_NAMESPACE - -#endif /* _MASK_ARRAY_H */ |