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jeremybenn |
// The template and inlines for the -*- C++ -*- internal _Meta class.
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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// 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file valarray_before.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
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#ifndef _VALARRAY_BEFORE_H
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#define _VALARRAY_BEFORE_H 1
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#pragma GCC system_header
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#include <bits/slice_array.h>
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_GLIBCXX_BEGIN_NAMESPACE(std)
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//
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// Implementing a loosened valarray return value is tricky.
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// First we need to meet 26.3.1/3: we should not add more than
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// two levels of template nesting. Therefore we resort to template
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// template to "flatten" loosened return value types.
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// At some point we use partial specialization to remove one level
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// template nesting due to _Expr<>
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//
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// This class is NOT defined. It doesn't need to.
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template<typename _Tp1, typename _Tp2> class _Constant;
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// Implementations of unary functions applied to valarray<>s.
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// I use hard-coded object functions here instead of a generic
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// approach like pointers to function:
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// 1) correctness: some functions take references, others values.
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// we can't deduce the correct type afterwards.
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// 2) efficiency -- object functions can be easily inlined
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// 3) be Koenig-lookup-friendly
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struct _Abs
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return abs(__t); }
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};
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struct _Cos
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return cos(__t); }
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};
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struct _Acos
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return acos(__t); }
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};
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struct _Cosh
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return cosh(__t); }
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};
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struct _Sin
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return sin(__t); }
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};
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struct _Asin
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return asin(__t); }
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};
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struct _Sinh
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return sinh(__t); }
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};
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struct _Tan
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return tan(__t); }
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};
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struct _Atan
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return atan(__t); }
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};
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struct _Tanh
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return tanh(__t); }
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};
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struct _Exp
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return exp(__t); }
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};
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struct _Log
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return log(__t); }
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};
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struct _Log10
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return log10(__t); }
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};
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struct _Sqrt
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return sqrt(__t); }
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};
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// In the past, we used to tailor operator applications semantics
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// to the specialization of standard function objects (i.e. plus<>, etc.)
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// That is incorrect. Therefore we provide our own surrogates.
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struct __unary_plus
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return +__t; }
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};
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struct __negate
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return -__t; }
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};
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struct __bitwise_not
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __t) const
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{ return ~__t; }
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};
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struct __plus
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x + __y; }
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};
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struct __minus
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x - __y; }
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};
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struct __multiplies
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x * __y; }
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};
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struct __divides
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x / __y; }
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};
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struct __modulus
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x % __y; }
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};
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struct __bitwise_xor
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x ^ __y; }
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};
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struct __bitwise_and
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x & __y; }
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};
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struct __bitwise_or
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x | __y; }
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};
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struct __shift_left
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x << __y; }
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};
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struct __shift_right
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{
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template<typename _Tp>
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x >> __y; }
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};
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struct __logical_and
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x && __y; }
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};
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struct __logical_or
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x || __y; }
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};
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struct __logical_not
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x) const
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{ return !__x; }
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};
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struct __equal_to
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x == __y; }
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};
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struct __not_equal_to
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x != __y; }
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};
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struct __less
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x < __y; }
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};
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struct __greater
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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{ return __x > __y; }
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};
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struct __less_equal
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{
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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| 308 |
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{ return __x <= __y; }
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};
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| 311 |
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struct __greater_equal
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| 312 |
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{
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| 313 |
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template<typename _Tp>
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bool operator()(const _Tp& __x, const _Tp& __y) const
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| 315 |
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{ return __x >= __y; }
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};
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| 318 |
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// The few binary functions we miss.
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struct _Atan2
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| 320 |
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{
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| 321 |
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template<typename _Tp>
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| 322 |
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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| 323 |
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{ return atan2(__x, __y); }
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};
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| 325 |
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| 326 |
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struct _Pow
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| 327 |
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{
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| 328 |
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template<typename _Tp>
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| 329 |
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_Tp operator()(const _Tp& __x, const _Tp& __y) const
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| 330 |
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{ return pow(__x, __y); }
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| 331 |
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};
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| 332 |
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| 333 |
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| 334 |
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// We need these bits in order to recover the return type of
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| 335 |
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// some functions/operators now that we're no longer using
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| 336 |
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// function templates.
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| 337 |
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template<typename, typename _Tp>
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struct __fun
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| 339 |
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{
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| 340 |
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typedef _Tp result_type;
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| 341 |
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};
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| 342 |
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| 343 |
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// several specializations for relational operators.
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| 344 |
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template<typename _Tp>
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| 345 |
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struct __fun<__logical_not, _Tp>
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| 346 |
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{
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| 347 |
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typedef bool result_type;
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| 348 |
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};
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| 349 |
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| 350 |
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template<typename _Tp>
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| 351 |
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struct __fun<__logical_and, _Tp>
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| 352 |
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{
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| 353 |
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typedef bool result_type;
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};
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| 355 |
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| 356 |
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template<typename _Tp>
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| 357 |
|
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struct __fun<__logical_or, _Tp>
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| 358 |
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{
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| 359 |
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typedef bool result_type;
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| 360 |
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};
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| 361 |
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| 362 |
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template<typename _Tp>
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| 363 |
|
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struct __fun<__less, _Tp>
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| 364 |
|
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{
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| 365 |
|
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typedef bool result_type;
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| 366 |
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};
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| 367 |
|
|
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| 368 |
|
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template<typename _Tp>
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| 369 |
|
|
struct __fun<__greater, _Tp>
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| 370 |
|
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{
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| 371 |
|
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typedef bool result_type;
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| 372 |
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};
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| 373 |
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| 374 |
|
|
template<typename _Tp>
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| 375 |
|
|
struct __fun<__less_equal, _Tp>
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| 376 |
|
|
{
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| 377 |
|
|
typedef bool result_type;
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| 378 |
|
|
};
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| 379 |
|
|
|
| 380 |
|
|
template<typename _Tp>
|
| 381 |
|
|
struct __fun<__greater_equal, _Tp>
|
| 382 |
|
|
{
|
| 383 |
|
|
typedef bool result_type;
|
| 384 |
|
|
};
|
| 385 |
|
|
|
| 386 |
|
|
template<typename _Tp>
|
| 387 |
|
|
struct __fun<__equal_to, _Tp>
|
| 388 |
|
|
{
|
| 389 |
|
|
typedef bool result_type;
|
| 390 |
|
|
};
|
| 391 |
|
|
|
| 392 |
|
|
template<typename _Tp>
|
| 393 |
|
|
struct __fun<__not_equal_to, _Tp>
|
| 394 |
|
|
{
|
| 395 |
|
|
typedef bool result_type;
|
| 396 |
|
|
};
|
| 397 |
|
|
|
| 398 |
|
|
//
|
| 399 |
|
|
// Apply function taking a value/const reference closure
|
| 400 |
|
|
//
|
| 401 |
|
|
|
| 402 |
|
|
template<typename _Dom, typename _Arg>
|
| 403 |
|
|
class _FunBase
|
| 404 |
|
|
{
|
| 405 |
|
|
public:
|
| 406 |
|
|
typedef typename _Dom::value_type value_type;
|
| 407 |
|
|
|
| 408 |
|
|
_FunBase(const _Dom& __e, value_type __f(_Arg))
|
| 409 |
|
|
: _M_expr(__e), _M_func(__f) {}
|
| 410 |
|
|
|
| 411 |
|
|
value_type operator[](size_t __i) const
|
| 412 |
|
|
{ return _M_func (_M_expr[__i]); }
|
| 413 |
|
|
|
| 414 |
|
|
size_t size() const { return _M_expr.size ();}
|
| 415 |
|
|
|
| 416 |
|
|
private:
|
| 417 |
|
|
const _Dom& _M_expr;
|
| 418 |
|
|
value_type (*_M_func)(_Arg);
|
| 419 |
|
|
};
|
| 420 |
|
|
|
| 421 |
|
|
template<class _Dom>
|
| 422 |
|
|
struct _ValFunClos<_Expr,_Dom> : _FunBase<_Dom, typename _Dom::value_type>
|
| 423 |
|
|
{
|
| 424 |
|
|
typedef _FunBase<_Dom, typename _Dom::value_type> _Base;
|
| 425 |
|
|
typedef typename _Base::value_type value_type;
|
| 426 |
|
|
typedef value_type _Tp;
|
| 427 |
|
|
|
| 428 |
|
|
_ValFunClos(const _Dom& __e, _Tp __f(_Tp)) : _Base(__e, __f) {}
|
| 429 |
|
|
};
|
| 430 |
|
|
|
| 431 |
|
|
template<typename _Tp>
|
| 432 |
|
|
struct _ValFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, _Tp>
|
| 433 |
|
|
{
|
| 434 |
|
|
typedef _FunBase<valarray<_Tp>, _Tp> _Base;
|
| 435 |
|
|
typedef _Tp value_type;
|
| 436 |
|
|
|
| 437 |
|
|
_ValFunClos(const valarray<_Tp>& __v, _Tp __f(_Tp)) : _Base(__v, __f) {}
|
| 438 |
|
|
};
|
| 439 |
|
|
|
| 440 |
|
|
template<class _Dom>
|
| 441 |
|
|
struct _RefFunClos<_Expr, _Dom>
|
| 442 |
|
|
: _FunBase<_Dom, const typename _Dom::value_type&>
|
| 443 |
|
|
{
|
| 444 |
|
|
typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base;
|
| 445 |
|
|
typedef typename _Base::value_type value_type;
|
| 446 |
|
|
typedef value_type _Tp;
|
| 447 |
|
|
|
| 448 |
|
|
_RefFunClos(const _Dom& __e, _Tp __f(const _Tp&))
|
| 449 |
|
|
: _Base(__e, __f) {}
|
| 450 |
|
|
};
|
| 451 |
|
|
|
| 452 |
|
|
template<typename _Tp>
|
| 453 |
|
|
struct _RefFunClos<_ValArray, _Tp>
|
| 454 |
|
|
: _FunBase<valarray<_Tp>, const _Tp&>
|
| 455 |
|
|
{
|
| 456 |
|
|
typedef _FunBase<valarray<_Tp>, const _Tp&> _Base;
|
| 457 |
|
|
typedef _Tp value_type;
|
| 458 |
|
|
|
| 459 |
|
|
_RefFunClos(const valarray<_Tp>& __v, _Tp __f(const _Tp&))
|
| 460 |
|
|
: _Base(__v, __f) {}
|
| 461 |
|
|
};
|
| 462 |
|
|
|
| 463 |
|
|
//
|
| 464 |
|
|
// Unary expression closure.
|
| 465 |
|
|
//
|
| 466 |
|
|
|
| 467 |
|
|
template<class _Oper, class _Arg>
|
| 468 |
|
|
class _UnBase
|
| 469 |
|
|
{
|
| 470 |
|
|
public:
|
| 471 |
|
|
typedef typename _Arg::value_type _Vt;
|
| 472 |
|
|
typedef typename __fun<_Oper, _Vt>::result_type value_type;
|
| 473 |
|
|
|
| 474 |
|
|
_UnBase(const _Arg& __e) : _M_expr(__e) {}
|
| 475 |
|
|
|
| 476 |
|
|
value_type operator[](size_t __i) const
|
| 477 |
|
|
{ return _Oper()(_M_expr[__i]); }
|
| 478 |
|
|
|
| 479 |
|
|
size_t size() const { return _M_expr.size(); }
|
| 480 |
|
|
|
| 481 |
|
|
private:
|
| 482 |
|
|
const _Arg& _M_expr;
|
| 483 |
|
|
};
|
| 484 |
|
|
|
| 485 |
|
|
template<class _Oper, class _Dom>
|
| 486 |
|
|
struct _UnClos<_Oper, _Expr, _Dom>
|
| 487 |
|
|
: _UnBase<_Oper, _Dom>
|
| 488 |
|
|
{
|
| 489 |
|
|
typedef _Dom _Arg;
|
| 490 |
|
|
typedef _UnBase<_Oper, _Dom> _Base;
|
| 491 |
|
|
typedef typename _Base::value_type value_type;
|
| 492 |
|
|
|
| 493 |
|
|
_UnClos(const _Arg& __e) : _Base(__e) {}
|
| 494 |
|
|
};
|
| 495 |
|
|
|
| 496 |
|
|
template<class _Oper, typename _Tp>
|
| 497 |
|
|
struct _UnClos<_Oper, _ValArray, _Tp>
|
| 498 |
|
|
: _UnBase<_Oper, valarray<_Tp> >
|
| 499 |
|
|
{
|
| 500 |
|
|
typedef valarray<_Tp> _Arg;
|
| 501 |
|
|
typedef _UnBase<_Oper, valarray<_Tp> > _Base;
|
| 502 |
|
|
typedef typename _Base::value_type value_type;
|
| 503 |
|
|
|
| 504 |
|
|
_UnClos(const _Arg& __e) : _Base(__e) {}
|
| 505 |
|
|
};
|
| 506 |
|
|
|
| 507 |
|
|
|
| 508 |
|
|
//
|
| 509 |
|
|
// Binary expression closure.
|
| 510 |
|
|
//
|
| 511 |
|
|
|
| 512 |
|
|
template<class _Oper, class _FirstArg, class _SecondArg>
|
| 513 |
|
|
class _BinBase
|
| 514 |
|
|
{
|
| 515 |
|
|
public:
|
| 516 |
|
|
typedef typename _FirstArg::value_type _Vt;
|
| 517 |
|
|
typedef typename __fun<_Oper, _Vt>::result_type value_type;
|
| 518 |
|
|
|
| 519 |
|
|
_BinBase(const _FirstArg& __e1, const _SecondArg& __e2)
|
| 520 |
|
|
: _M_expr1(__e1), _M_expr2(__e2) {}
|
| 521 |
|
|
|
| 522 |
|
|
value_type operator[](size_t __i) const
|
| 523 |
|
|
{ return _Oper()(_M_expr1[__i], _M_expr2[__i]); }
|
| 524 |
|
|
|
| 525 |
|
|
size_t size() const { return _M_expr1.size(); }
|
| 526 |
|
|
|
| 527 |
|
|
private:
|
| 528 |
|
|
const _FirstArg& _M_expr1;
|
| 529 |
|
|
const _SecondArg& _M_expr2;
|
| 530 |
|
|
};
|
| 531 |
|
|
|
| 532 |
|
|
|
| 533 |
|
|
template<class _Oper, class _Clos>
|
| 534 |
|
|
class _BinBase2
|
| 535 |
|
|
{
|
| 536 |
|
|
public:
|
| 537 |
|
|
typedef typename _Clos::value_type _Vt;
|
| 538 |
|
|
typedef typename __fun<_Oper, _Vt>::result_type value_type;
|
| 539 |
|
|
|
| 540 |
|
|
_BinBase2(const _Clos& __e, const _Vt& __t)
|
| 541 |
|
|
: _M_expr1(__e), _M_expr2(__t) {}
|
| 542 |
|
|
|
| 543 |
|
|
value_type operator[](size_t __i) const
|
| 544 |
|
|
{ return _Oper()(_M_expr1[__i], _M_expr2); }
|
| 545 |
|
|
|
| 546 |
|
|
size_t size() const { return _M_expr1.size(); }
|
| 547 |
|
|
|
| 548 |
|
|
private:
|
| 549 |
|
|
const _Clos& _M_expr1;
|
| 550 |
|
|
const _Vt& _M_expr2;
|
| 551 |
|
|
};
|
| 552 |
|
|
|
| 553 |
|
|
template<class _Oper, class _Clos>
|
| 554 |
|
|
class _BinBase1
|
| 555 |
|
|
{
|
| 556 |
|
|
public:
|
| 557 |
|
|
typedef typename _Clos::value_type _Vt;
|
| 558 |
|
|
typedef typename __fun<_Oper, _Vt>::result_type value_type;
|
| 559 |
|
|
|
| 560 |
|
|
_BinBase1(const _Vt& __t, const _Clos& __e)
|
| 561 |
|
|
: _M_expr1(__t), _M_expr2(__e) {}
|
| 562 |
|
|
|
| 563 |
|
|
value_type operator[](size_t __i) const
|
| 564 |
|
|
{ return _Oper()(_M_expr1, _M_expr2[__i]); }
|
| 565 |
|
|
|
| 566 |
|
|
size_t size() const { return _M_expr2.size(); }
|
| 567 |
|
|
|
| 568 |
|
|
private:
|
| 569 |
|
|
const _Vt& _M_expr1;
|
| 570 |
|
|
const _Clos& _M_expr2;
|
| 571 |
|
|
};
|
| 572 |
|
|
|
| 573 |
|
|
template<class _Oper, class _Dom1, class _Dom2>
|
| 574 |
|
|
struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2>
|
| 575 |
|
|
: _BinBase<_Oper, _Dom1, _Dom2>
|
| 576 |
|
|
{
|
| 577 |
|
|
typedef _BinBase<_Oper, _Dom1, _Dom2> _Base;
|
| 578 |
|
|
typedef typename _Base::value_type value_type;
|
| 579 |
|
|
|
| 580 |
|
|
_BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {}
|
| 581 |
|
|
};
|
| 582 |
|
|
|
| 583 |
|
|
template<class _Oper, typename _Tp>
|
| 584 |
|
|
struct _BinClos<_Oper,_ValArray, _ValArray, _Tp, _Tp>
|
| 585 |
|
|
: _BinBase<_Oper, valarray<_Tp>, valarray<_Tp> >
|
| 586 |
|
|
{
|
| 587 |
|
|
typedef _BinBase<_Oper, valarray<_Tp>, valarray<_Tp> > _Base;
|
| 588 |
|
|
typedef typename _Base::value_type value_type;
|
| 589 |
|
|
|
| 590 |
|
|
_BinClos(const valarray<_Tp>& __v, const valarray<_Tp>& __w)
|
| 591 |
|
|
: _Base(__v, __w) {}
|
| 592 |
|
|
};
|
| 593 |
|
|
|
| 594 |
|
|
template<class _Oper, class _Dom>
|
| 595 |
|
|
struct _BinClos<_Oper, _Expr, _ValArray, _Dom, typename _Dom::value_type>
|
| 596 |
|
|
: _BinBase<_Oper, _Dom, valarray<typename _Dom::value_type> >
|
| 597 |
|
|
{
|
| 598 |
|
|
typedef typename _Dom::value_type _Tp;
|
| 599 |
|
|
typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base;
|
| 600 |
|
|
typedef typename _Base::value_type value_type;
|
| 601 |
|
|
|
| 602 |
|
|
_BinClos(const _Dom& __e1, const valarray<_Tp>& __e2)
|
| 603 |
|
|
: _Base(__e1, __e2) {}
|
| 604 |
|
|
};
|
| 605 |
|
|
|
| 606 |
|
|
template<class _Oper, class _Dom>
|
| 607 |
|
|
struct _BinClos<_Oper, _ValArray, _Expr, typename _Dom::value_type, _Dom>
|
| 608 |
|
|
: _BinBase<_Oper, valarray<typename _Dom::value_type>,_Dom>
|
| 609 |
|
|
{
|
| 610 |
|
|
typedef typename _Dom::value_type _Tp;
|
| 611 |
|
|
typedef _BinBase<_Oper, valarray<_Tp>, _Dom> _Base;
|
| 612 |
|
|
typedef typename _Base::value_type value_type;
|
| 613 |
|
|
|
| 614 |
|
|
_BinClos(const valarray<_Tp>& __e1, const _Dom& __e2)
|
| 615 |
|
|
: _Base(__e1, __e2) {}
|
| 616 |
|
|
};
|
| 617 |
|
|
|
| 618 |
|
|
template<class _Oper, class _Dom>
|
| 619 |
|
|
struct _BinClos<_Oper, _Expr, _Constant, _Dom, typename _Dom::value_type>
|
| 620 |
|
|
: _BinBase2<_Oper, _Dom>
|
| 621 |
|
|
{
|
| 622 |
|
|
typedef typename _Dom::value_type _Tp;
|
| 623 |
|
|
typedef _BinBase2<_Oper,_Dom> _Base;
|
| 624 |
|
|
typedef typename _Base::value_type value_type;
|
| 625 |
|
|
|
| 626 |
|
|
_BinClos(const _Dom& __e1, const _Tp& __e2) : _Base(__e1, __e2) {}
|
| 627 |
|
|
};
|
| 628 |
|
|
|
| 629 |
|
|
template<class _Oper, class _Dom>
|
| 630 |
|
|
struct _BinClos<_Oper, _Constant, _Expr, typename _Dom::value_type, _Dom>
|
| 631 |
|
|
: _BinBase1<_Oper, _Dom>
|
| 632 |
|
|
{
|
| 633 |
|
|
typedef typename _Dom::value_type _Tp;
|
| 634 |
|
|
typedef _BinBase1<_Oper, _Dom> _Base;
|
| 635 |
|
|
typedef typename _Base::value_type value_type;
|
| 636 |
|
|
|
| 637 |
|
|
_BinClos(const _Tp& __e1, const _Dom& __e2) : _Base(__e1, __e2) {}
|
| 638 |
|
|
};
|
| 639 |
|
|
|
| 640 |
|
|
template<class _Oper, typename _Tp>
|
| 641 |
|
|
struct _BinClos<_Oper, _ValArray, _Constant, _Tp, _Tp>
|
| 642 |
|
|
: _BinBase2<_Oper, valarray<_Tp> >
|
| 643 |
|
|
{
|
| 644 |
|
|
typedef _BinBase2<_Oper,valarray<_Tp> > _Base;
|
| 645 |
|
|
typedef typename _Base::value_type value_type;
|
| 646 |
|
|
|
| 647 |
|
|
_BinClos(const valarray<_Tp>& __v, const _Tp& __t) : _Base(__v, __t) {}
|
| 648 |
|
|
};
|
| 649 |
|
|
|
| 650 |
|
|
template<class _Oper, typename _Tp>
|
| 651 |
|
|
struct _BinClos<_Oper, _Constant, _ValArray, _Tp, _Tp>
|
| 652 |
|
|
: _BinBase1<_Oper, valarray<_Tp> >
|
| 653 |
|
|
{
|
| 654 |
|
|
typedef _BinBase1<_Oper, valarray<_Tp> > _Base;
|
| 655 |
|
|
typedef typename _Base::value_type value_type;
|
| 656 |
|
|
|
| 657 |
|
|
_BinClos(const _Tp& __t, const valarray<_Tp>& __v) : _Base(__t, __v) {}
|
| 658 |
|
|
};
|
| 659 |
|
|
|
| 660 |
|
|
//
|
| 661 |
|
|
// slice_array closure.
|
| 662 |
|
|
//
|
| 663 |
|
|
template<typename _Dom>
|
| 664 |
|
|
class _SBase
|
| 665 |
|
|
{
|
| 666 |
|
|
public:
|
| 667 |
|
|
typedef typename _Dom::value_type value_type;
|
| 668 |
|
|
|
| 669 |
|
|
_SBase (const _Dom& __e, const slice& __s)
|
| 670 |
|
|
: _M_expr (__e), _M_slice (__s) {}
|
| 671 |
|
|
|
| 672 |
|
|
value_type
|
| 673 |
|
|
operator[] (size_t __i) const
|
| 674 |
|
|
{ return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; }
|
| 675 |
|
|
|
| 676 |
|
|
size_t
|
| 677 |
|
|
size() const
|
| 678 |
|
|
{ return _M_slice.size (); }
|
| 679 |
|
|
|
| 680 |
|
|
private:
|
| 681 |
|
|
const _Dom& _M_expr;
|
| 682 |
|
|
const slice& _M_slice;
|
| 683 |
|
|
};
|
| 684 |
|
|
|
| 685 |
|
|
template<typename _Tp>
|
| 686 |
|
|
class _SBase<_Array<_Tp> >
|
| 687 |
|
|
{
|
| 688 |
|
|
public:
|
| 689 |
|
|
typedef _Tp value_type;
|
| 690 |
|
|
|
| 691 |
|
|
_SBase (_Array<_Tp> __a, const slice& __s)
|
| 692 |
|
|
: _M_array (__a._M_data+__s.start()), _M_size (__s.size()),
|
| 693 |
|
|
_M_stride (__s.stride()) {}
|
| 694 |
|
|
|
| 695 |
|
|
value_type
|
| 696 |
|
|
operator[] (size_t __i) const
|
| 697 |
|
|
{ return _M_array._M_data[__i * _M_stride]; }
|
| 698 |
|
|
|
| 699 |
|
|
size_t
|
| 700 |
|
|
size() const
|
| 701 |
|
|
{ return _M_size; }
|
| 702 |
|
|
|
| 703 |
|
|
private:
|
| 704 |
|
|
const _Array<_Tp> _M_array;
|
| 705 |
|
|
const size_t _M_size;
|
| 706 |
|
|
const size_t _M_stride;
|
| 707 |
|
|
};
|
| 708 |
|
|
|
| 709 |
|
|
template<class _Dom>
|
| 710 |
|
|
struct _SClos<_Expr, _Dom>
|
| 711 |
|
|
: _SBase<_Dom>
|
| 712 |
|
|
{
|
| 713 |
|
|
typedef _SBase<_Dom> _Base;
|
| 714 |
|
|
typedef typename _Base::value_type value_type;
|
| 715 |
|
|
|
| 716 |
|
|
_SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {}
|
| 717 |
|
|
};
|
| 718 |
|
|
|
| 719 |
|
|
template<typename _Tp>
|
| 720 |
|
|
struct _SClos<_ValArray, _Tp>
|
| 721 |
|
|
: _SBase<_Array<_Tp> >
|
| 722 |
|
|
{
|
| 723 |
|
|
typedef _SBase<_Array<_Tp> > _Base;
|
| 724 |
|
|
typedef _Tp value_type;
|
| 725 |
|
|
|
| 726 |
|
|
_SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {}
|
| 727 |
|
|
};
|
| 728 |
|
|
|
| 729 |
|
|
_GLIBCXX_END_NAMESPACE
|
| 730 |
|
|
|
| 731 |
|
|
#endif /* _CPP_VALARRAY_BEFORE_H */
|
