// The template and inlines for the -*- C++ -*- internal _Meta class.
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 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
* You should not attempt to use it directly.
*/
-#ifndef _CPP_VALARRAY_META_H
-#define _CPP_VALARRAY_META_H 1
+#ifndef _CPP_VALARRAY_AFTER_H
+#define _CPP_VALARRAY_AFTER_H 1
#pragma GCC system_header
-#include <bits/slice_array.h>
-
namespace std
{
- //
- // Implementing a loosened valarray return value is tricky.
- // First we need to meet 26.3.1/3: we should not add more than
- // two levels of template nesting. Therefore we resort to template
- // template to "flatten" loosened return value types.
- // At some point we use partial specialization to remove one level
- // template nesting due to _Expr<>
- //
- // This class is NOT defined. It doesn't need to.
- template<typename _Tp1, typename _Tp2> class _Constant;
-
- // Implementations of unary functions applied to valarray<>s.
- // I use hard-coded object functions here instead of a generic
- // approach like pointers to function:
- // 1) correctness: some functions take references, others values.
- // we can't deduce the correct type afterwards.
- // 2) efficiency -- object functions can be easily inlined
- // 3) be Koenig-lookup-friendly
-
- struct __abs
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return abs(__t); }
- };
-
- struct __cos
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return cos(__t); }
- };
-
- struct __acos
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return acos(__t); }
- };
-
- struct __cosh
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return cosh(__t); }
- };
-
- struct __sin
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return sin(__t); }
- };
-
- struct __asin
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return asin(__t); }
- };
-
- struct __sinh
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return sinh(__t); }
- };
-
- struct __tan
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return tan(__t); }
- };
-
- struct __atan
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return atan(__t); }
- };
-
- struct __tanh
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return tanh(__t); }
- };
-
- struct __exp
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return exp(__t); }
- };
-
- struct __log
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return log(__t); }
- };
-
- struct __log10
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return log10(__t); }
- };
-
- struct __sqrt
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return sqrt(__t); }
- };
-
- // In the past, we used to tailor operator applications semantics
- // to the specialization of standard function objects (i.e. plus<>, etc.)
- // That is incorrect. Therefore we provide our own surrogates.
-
- struct __unary_plus
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return +__t; }
- };
-
- struct __negate
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return -__t; }
- };
-
- struct __bitwise_not
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __t) const { return ~__t; }
- };
-
- struct __plus
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x + __y; }
- };
-
- struct __minus
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x - __y; }
- };
-
- struct __multiplies
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x * __y; }
- };
-
- struct __divides
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x / __y; }
- };
-
- struct __modulus
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x % __y; }
- };
-
- struct __bitwise_xor
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x ^ __y; }
- };
-
- struct __bitwise_and
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x & __y; }
- };
-
- struct __bitwise_or
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x | __y; }
- };
-
- struct __shift_left
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x << __y; }
- };
-
- struct __shift_right
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return __x >> __y; }
- };
-
- struct __logical_and
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x && __y; }
- };
-
- struct __logical_or
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x || __y; }
- };
-
- struct __logical_not
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x) const { return !__x; }
- };
-
- struct __equal_to
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x == __y; }
- };
-
- struct __not_equal_to
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x == __y; }
- };
-
- struct __less
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x < __y; }
- };
-
- struct __greater
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x > __y; }
- };
-
- struct __less_equal
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x <= __y; }
- };
-
- struct __greater_equal
- {
- template<typename _Tp>
- bool operator()(const _Tp& __x, const _Tp& __y) const
- { return __x >= __y; }
- };
-
- // The few binary functions we miss.
- struct __atan2
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return atan2(__x, __y); }
- };
-
- struct __pow
- {
- template<typename _Tp>
- _Tp operator()(const _Tp& __x, const _Tp& __y) const
- { return pow(__x, __y); }
- };
-
-
- // We need these bits in order to recover the return type of
- // some functions/operators now that we're no longer using
- // function templates.
- template<typename, typename _Tp>
- struct __fun
- {
- typedef _Tp result_type;
- };
-
- // several specializations for relational operators.
- template<typename _Tp>
- struct __fun<__logical_not, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__logical_and, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__logical_or, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__less, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__greater, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__less_equal, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__greater_equal, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__equal_to, _Tp>
- {
- typedef bool result_type;
- };
-
- template<typename _Tp>
- struct __fun<__not_equal_to, _Tp>
- {
- typedef bool result_type;
- };
-
- //
- // Apply function taking a value/const reference closure
- //
-
- template<typename _Dom, typename _Arg>
- class _FunBase
- {
- public:
- typedef typename _Dom::value_type value_type;
-
- _FunBase(const _Dom& __e, value_type __f(_Arg))
- : _M_expr(__e), _M_func(__f) {}
-
- value_type operator[](size_t __i) const
- { return _M_func (_M_expr[__i]); }
-
- size_t size() const { return _M_expr.size ();}
-
- private:
- const _Dom& _M_expr;
- value_type (*_M_func)(_Arg);
- };
-
- template<class _Dom>
- struct _ValFunClos<_Expr,_Dom> : _FunBase<_Dom, typename _Dom::value_type>
- {
- typedef _FunBase<_Dom, typename _Dom::value_type> _Base;
- typedef typename _Base::value_type value_type;
- typedef value_type _Tp;
-
- _ValFunClos(const _Dom& __e, _Tp __f(_Tp)) : _Base(__e, __f) {}
- };
-
- template<typename _Tp>
- struct _ValFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, _Tp>
- {
- typedef _FunBase<valarray<_Tp>, _Tp> _Base;
- typedef _Tp value_type;
-
- _ValFunClos(const valarray<_Tp>& __v, _Tp __f(_Tp)) : _Base(__v, __f) {}
- };
-
- template<class _Dom>
- struct _RefFunClos<_Expr,_Dom> :
- _FunBase<_Dom, const typename _Dom::value_type&>
- {
- typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base;
- typedef typename _Base::value_type value_type;
- typedef value_type _Tp;
-
- _RefFunClos(const _Dom& __e, _Tp __f(const _Tp&))
- : _Base(__e, __f) {}
- };
-
- template<typename _Tp>
- struct _RefFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, const _Tp&>
- {
- typedef _FunBase<valarray<_Tp>, const _Tp&> _Base;
- typedef _Tp value_type;
-
- _RefFunClos(const valarray<_Tp>& __v, _Tp __f(const _Tp&))
- : _Base(__v, __f) {}
- };
-
- //
- // Unary expression closure.
- //
-
- template<class _Oper, class _Arg>
- class _UnBase
- {
- public:
- typedef typename _Arg::value_type _Vt;
- typedef typename __fun<_Oper, _Vt>::result_type value_type;
-
- _UnBase(const _Arg& __e) : _M_expr(__e) {}
-
- value_type operator[](size_t __i) const
- { return _M_expr[__i]; }
-
- size_t size() const { return _M_expr.size(); }
-
- private:
- const _Arg& _M_expr;
- };
-
- template<class _Oper, class _Dom>
- struct _UnClos<_Oper, _Expr, _Dom> : _UnBase<_Oper, _Dom>
- {
- typedef _Dom _Arg;
- typedef _UnBase<_Oper, _Dom> _Base;
- typedef typename _Base::value_type value_type;
-
- _UnClos(const _Arg& __e) : _Base(__e) {}
- };
-
- template<class _Oper, typename _Tp>
- struct _UnClos<_Oper, _ValArray, _Tp> : _UnBase<_Oper, valarray<_Tp> >
- {
- typedef valarray<_Tp> _Arg;
- typedef _UnBase<_Oper, valarray<_Tp> > _Base;
- typedef typename _Base::value_type value_type;
-
- _UnClos(const _Arg& __e) : _Base(__e) {}
- };
-
-
- //
- // Binary expression closure.
- //
-
- template<class _Oper, class _FirstArg, class _SecondArg>
- class _BinBase
- {
- public:
- typedef typename _FirstArg::value_type _Vt;
- typedef typename __fun<_Oper, _Vt>::result_type value_type;
-
- _BinBase(const _FirstArg& __e1, const _SecondArg& __e2)
- : _M_expr1(__e1), _M_expr2(__e2) {}
-
- value_type operator[](size_t __i) const
- { return _Oper()(_M_expr1[__i], _M_expr2[__i]); }
-
- size_t size() const { return _M_expr1.size(); }
-
- private:
- const _FirstArg& _M_expr1;
- const _SecondArg& _M_expr2;
- };
-
-
- template<class _Oper, class _Clos>
- class _BinBase2
- {
- public:
- typedef typename _Clos::value_type _Vt;
- typedef typename __fun<_Oper, _Vt>::result_type value_type;
-
- _BinBase2(const _Clos& __e, const _Vt& __t)
- : _M_expr1(__e), _M_expr2(__t) {}
-
- value_type operator[](size_t __i) const
- { return _Oper()(_M_expr1[__i], _M_expr2); }
-
- size_t size() const { return _M_expr1.size(); }
-
- private:
- const _Clos& _M_expr1;
- const _Vt& _M_expr2;
- };
-
- template<class _Oper, class _Clos>
- class _BinBase1
- {
- public:
- typedef typename _Clos::value_type _Vt;
- typedef typename __fun<_Oper, _Vt>::result_type value_type;
-
- _BinBase1(const _Vt& __t, const _Clos& __e)
- : _M_expr1(__t), _M_expr2(__e) {}
-
- value_type operator[](size_t __i) const
- { return _Oper()(_M_expr1, _M_expr2[__i]); }
-
- size_t size() const { return _M_expr2.size(); }
-
- private:
- const _Vt& _M_expr1;
- const _Clos& _M_expr2;
- };
-
- template<class _Oper, class _Dom1, class _Dom2>
- struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2>
- : _BinBase<_Oper,_Dom1,_Dom2>
- {
- typedef _BinBase<_Oper,_Dom1,_Dom2> _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {}
- };
-
- template<class _Oper, typename _Tp>
- struct _BinClos<_Oper,_ValArray,_ValArray,_Tp,_Tp>
- : _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> >
- {
- typedef _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > _Base;
- typedef _Tp value_type;
-
- _BinClos(const valarray<_Tp>& __v, const valarray<_Tp>& __w)
- : _Base(__v, __w) {}
- };
-
- template<class _Oper, class _Dom>
- struct _BinClos<_Oper,_Expr,_ValArray,_Dom,typename _Dom::value_type>
- : _BinBase<_Oper,_Dom,valarray<typename _Dom::value_type> >
- {
- typedef typename _Dom::value_type _Tp;
- typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const _Dom& __e1, const valarray<_Tp>& __e2)
- : _Base(__e1, __e2) {}
- };
-
- template<class _Oper, class _Dom>
- struct _BinClos<_Oper,_ValArray,_Expr,typename _Dom::value_type,_Dom>
- : _BinBase<_Oper,valarray<typename _Dom::value_type>,_Dom>
- {
- typedef typename _Dom::value_type _Tp;
- typedef _BinBase<_Oper,valarray<_Tp>,_Dom> _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const valarray<_Tp>& __e1, const _Dom& __e2)
- : _Base(__e1, __e2) {}
- };
-
- template<class _Oper, class _Dom>
- struct _BinClos<_Oper,_Expr,_Constant,_Dom,typename _Dom::value_type>
- : _BinBase2<_Oper,_Dom>
- {
- typedef typename _Dom::value_type _Tp;
- typedef _BinBase2<_Oper,_Dom> _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const _Dom& __e1, const _Tp& __e2) : _Base(__e1, __e2) {}
- };
-
- template<class _Oper, class _Dom>
- struct _BinClos<_Oper,_Constant,_Expr,typename _Dom::value_type,_Dom>
- : _BinBase1<_Oper,_Dom>
- {
- typedef typename _Dom::value_type _Tp;
- typedef _BinBase1<_Oper,_Dom> _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const _Tp& __e1, const _Dom& __e2) : _Base(__e1, __e2) {}
- };
-
- template<class _Oper, typename _Tp>
- struct _BinClos<_Oper,_ValArray,_Constant,_Tp,_Tp>
- : _BinBase2<_Oper,valarray<_Tp> >
- {
- typedef _BinBase2<_Oper,valarray<_Tp> > _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const valarray<_Tp>& __v, const _Tp& __t) : _Base(__v, __t) {}
- };
-
- template<class _Oper, typename _Tp>
- struct _BinClos<_Oper,_Constant,_ValArray,_Tp,_Tp>
- : _BinBase1<_Oper,valarray<_Tp> >
- {
- typedef _BinBase1<_Oper,valarray<_Tp> > _Base;
- typedef typename _Base::value_type value_type;
-
- _BinClos(const _Tp& __t, const valarray<_Tp>& __v) : _Base(__t, __v) {}
- };
-
-
- //
- // slice_array closure.
- //
- template<typename _Dom> class _SBase {
- public:
- typedef typename _Dom::value_type value_type;
-
- _SBase (const _Dom& __e, const slice& __s)
- : _M_expr (__e), _M_slice (__s) {}
- value_type operator[] (size_t __i) const
- { return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; }
- size_t size() const { return _M_slice.size (); }
-
- private:
- const _Dom& _M_expr;
- const slice& _M_slice;
- };
-
- template<typename _Tp> class _SBase<_Array<_Tp> > {
- public:
- typedef _Tp value_type;
-
- _SBase (_Array<_Tp> __a, const slice& __s)
- : _M_array (__a._M_data+__s.start()), _M_size (__s.size()),
- _M_stride (__s.stride()) {}
- value_type operator[] (size_t __i) const
- { return _M_array._M_data[__i * _M_stride]; }
- size_t size() const { return _M_size; }
-
- private:
- const _Array<_Tp> _M_array;
- const size_t _M_size;
- const size_t _M_stride;
- };
-
- template<class _Dom> struct _SClos<_Expr,_Dom> : _SBase<_Dom> {
- typedef _SBase<_Dom> _Base;
- typedef typename _Base::value_type value_type;
-
- _SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {}
- };
-
- template<typename _Tp>
- struct _SClos<_ValArray,_Tp> : _SBase<_Array<_Tp> > {
- typedef _SBase<_Array<_Tp> > _Base;
- typedef _Tp value_type;
-
- _SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {}
- };
-
//
// gslice_array closure.
//
//
// indirect_array closure
//
-
template<class _Dom> class _IBase {
public:
typedef typename _Dom::value_type value_type;
} // std::
-#endif /* _CPP_VALARRAY_META_H */
+#endif /* _CPP_VALARRAY_AFTER_H */
// Local Variables:
// mode:c++
--- /dev/null
+// The template and inlines for the -*- C++ -*- internal _Meta class.
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// 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.
+
+// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
+
+/** @file valarray_meta.h
+ * This is an internal header file, included by other library headers.
+ * You should not attempt to use it directly.
+ */
+
+#ifndef _CPP_VALARRAY_BEFORE_H
+#define _CPP_VALARRAY_BEFORE_H 1
+
+#pragma GCC system_header
+
+#include <bits/slice_array.h>
+
+namespace std
+{
+ //
+ // Implementing a loosened valarray return value is tricky.
+ // First we need to meet 26.3.1/3: we should not add more than
+ // two levels of template nesting. Therefore we resort to template
+ // template to "flatten" loosened return value types.
+ // At some point we use partial specialization to remove one level
+ // template nesting due to _Expr<>
+ //
+
+ // This class is NOT defined. It doesn't need to.
+ template<typename _Tp1, typename _Tp2> class _Constant;
+
+ // Implementations of unary functions applied to valarray<>s.
+ // I use hard-coded object functions here instead of a generic
+ // approach like pointers to function:
+ // 1) correctness: some functions take references, others values.
+ // we can't deduce the correct type afterwards.
+ // 2) efficiency -- object functions can be easily inlined
+ // 3) be Koenig-lookup-friendly
+
+ struct __abs
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return abs(__t); }
+ };
+
+ struct __cos
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return cos(__t); }
+ };
+
+ struct __acos
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return acos(__t); }
+ };
+
+ struct __cosh
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return cosh(__t); }
+ };
+
+ struct __sin
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return sin(__t); }
+ };
+
+ struct __asin
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return asin(__t); }
+ };
+
+ struct __sinh
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return sinh(__t); }
+ };
+
+ struct __tan
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return tan(__t); }
+ };
+
+ struct __atan
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return atan(__t); }
+ };
+
+ struct __tanh
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return tanh(__t); }
+ };
+
+ struct __exp
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return exp(__t); }
+ };
+
+ struct __log
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return log(__t); }
+ };
+
+ struct __log10
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return log10(__t); }
+ };
+
+ struct __sqrt
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return sqrt(__t); }
+ };
+
+ // In the past, we used to tailor operator applications semantics
+ // to the specialization of standard function objects (i.e. plus<>, etc.)
+ // That is incorrect. Therefore we provide our own surrogates.
+
+ struct __unary_plus
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return +__t; }
+ };
+
+ struct __negate
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return -__t; }
+ };
+
+ struct __bitwise_not
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __t) const { return ~__t; }
+ };
+
+ struct __plus
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x + __y; }
+ };
+
+ struct __minus
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x - __y; }
+ };
+
+ struct __multiplies
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x * __y; }
+ };
+
+ struct __divides
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x / __y; }
+ };
+
+ struct __modulus
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x % __y; }
+ };
+
+ struct __bitwise_xor
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x ^ __y; }
+ };
+
+ struct __bitwise_and
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x & __y; }
+ };
+
+ struct __bitwise_or
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x | __y; }
+ };
+
+ struct __shift_left
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x << __y; }
+ };
+
+ struct __shift_right
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x >> __y; }
+ };
+
+ struct __logical_and
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x && __y; }
+ };
+
+ struct __logical_or
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x || __y; }
+ };
+
+ struct __logical_not
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x) const { return !__x; }
+ };
+
+ struct __equal_to
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x == __y; }
+ };
+
+ struct __not_equal_to
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x == __y; }
+ };
+
+ struct __less
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x < __y; }
+ };
+
+ struct __greater
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x > __y; }
+ };
+
+ struct __less_equal
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x <= __y; }
+ };
+
+ struct __greater_equal
+ {
+ template<typename _Tp>
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ { return __x >= __y; }
+ };
+
+ // The few binary functions we miss.
+ struct __atan2
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return atan2(__x, __y); }
+ };
+
+ struct __pow
+ {
+ template<typename _Tp>
+ _Tp operator()(const _Tp& __x, const _Tp& __y) const
+ { return pow(__x, __y); }
+ };
+
+
+ // We need these bits in order to recover the return type of
+ // some functions/operators now that we're no longer using
+ // function templates.
+ template<typename, typename _Tp>
+ struct __fun
+ {
+ typedef _Tp result_type;
+ };
+
+ // several specializations for relational operators.
+ template<typename _Tp>
+ struct __fun<__logical_not, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__logical_and, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__logical_or, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__less, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__greater, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__less_equal, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__greater_equal, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__equal_to, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ template<typename _Tp>
+ struct __fun<__not_equal_to, _Tp>
+ {
+ typedef bool result_type;
+ };
+
+ //
+ // Apply function taking a value/const reference closure
+ //
+
+ template<typename _Dom, typename _Arg>
+ class _FunBase
+ {
+ public:
+ typedef typename _Dom::value_type value_type;
+
+ _FunBase(const _Dom& __e, value_type __f(_Arg))
+ : _M_expr(__e), _M_func(__f) {}
+
+ value_type operator[](size_t __i) const
+ { return _M_func (_M_expr[__i]); }
+
+ size_t size() const { return _M_expr.size ();}
+
+ private:
+ const _Dom& _M_expr;
+ value_type (*_M_func)(_Arg);
+ };
+
+ template<class _Dom>
+ struct _ValFunClos<_Expr,_Dom> : _FunBase<_Dom, typename _Dom::value_type>
+ {
+ typedef _FunBase<_Dom, typename _Dom::value_type> _Base;
+ typedef typename _Base::value_type value_type;
+ typedef value_type _Tp;
+
+ _ValFunClos(const _Dom& __e, _Tp __f(_Tp)) : _Base(__e, __f) {}
+ };
+
+ template<typename _Tp>
+ struct _ValFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, _Tp>
+ {
+ typedef _FunBase<valarray<_Tp>, _Tp> _Base;
+ typedef _Tp value_type;
+
+ _ValFunClos(const valarray<_Tp>& __v, _Tp __f(_Tp)) : _Base(__v, __f) {}
+ };
+
+ template<class _Dom>
+ struct _RefFunClos<_Expr,_Dom> :
+ _FunBase<_Dom, const typename _Dom::value_type&>
+ {
+ typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base;
+ typedef typename _Base::value_type value_type;
+ typedef value_type _Tp;
+
+ _RefFunClos(const _Dom& __e, _Tp __f(const _Tp&))
+ : _Base(__e, __f) {}
+ };
+
+ template<typename _Tp>
+ struct _RefFunClos<_ValArray,_Tp> : _FunBase<valarray<_Tp>, const _Tp&>
+ {
+ typedef _FunBase<valarray<_Tp>, const _Tp&> _Base;
+ typedef _Tp value_type;
+
+ _RefFunClos(const valarray<_Tp>& __v, _Tp __f(const _Tp&))
+ : _Base(__v, __f) {}
+ };
+
+ //
+ // Unary expression closure.
+ //
+
+ template<class _Oper, class _Arg>
+ class _UnBase
+ {
+ public:
+ typedef typename _Arg::value_type _Vt;
+ typedef typename __fun<_Oper, _Vt>::result_type value_type;
+
+ _UnBase(const _Arg& __e) : _M_expr(__e) {}
+
+ value_type operator[](size_t __i) const
+ { return _M_expr[__i]; }
+
+ size_t size() const { return _M_expr.size(); }
+
+ private:
+ const _Arg& _M_expr;
+ };
+
+ template<class _Oper, class _Dom>
+ struct _UnClos<_Oper, _Expr, _Dom> : _UnBase<_Oper, _Dom>
+ {
+ typedef _Dom _Arg;
+ typedef _UnBase<_Oper, _Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _UnClos(const _Arg& __e) : _Base(__e) {}
+ };
+
+ template<class _Oper, typename _Tp>
+ struct _UnClos<_Oper, _ValArray, _Tp> : _UnBase<_Oper, valarray<_Tp> >
+ {
+ typedef valarray<_Tp> _Arg;
+ typedef _UnBase<_Oper, valarray<_Tp> > _Base;
+ typedef typename _Base::value_type value_type;
+
+ _UnClos(const _Arg& __e) : _Base(__e) {}
+ };
+
+
+ //
+ // Binary expression closure.
+ //
+
+ template<class _Oper, class _FirstArg, class _SecondArg>
+ class _BinBase
+ {
+ public:
+ typedef typename _FirstArg::value_type _Vt;
+ typedef typename __fun<_Oper, _Vt>::result_type value_type;
+
+ _BinBase(const _FirstArg& __e1, const _SecondArg& __e2)
+ : _M_expr1(__e1), _M_expr2(__e2) {}
+
+ value_type operator[](size_t __i) const
+ { return _Oper()(_M_expr1[__i], _M_expr2[__i]); }
+
+ size_t size() const { return _M_expr1.size(); }
+
+ private:
+ const _FirstArg& _M_expr1;
+ const _SecondArg& _M_expr2;
+ };
+
+
+ template<class _Oper, class _Clos>
+ class _BinBase2
+ {
+ public:
+ typedef typename _Clos::value_type _Vt;
+ typedef typename __fun<_Oper, _Vt>::result_type value_type;
+
+ _BinBase2(const _Clos& __e, const _Vt& __t)
+ : _M_expr1(__e), _M_expr2(__t) {}
+
+ value_type operator[](size_t __i) const
+ { return _Oper()(_M_expr1[__i], _M_expr2); }
+
+ size_t size() const { return _M_expr1.size(); }
+
+ private:
+ const _Clos& _M_expr1;
+ const _Vt& _M_expr2;
+ };
+
+ template<class _Oper, class _Clos>
+ class _BinBase1
+ {
+ public:
+ typedef typename _Clos::value_type _Vt;
+ typedef typename __fun<_Oper, _Vt>::result_type value_type;
+
+ _BinBase1(const _Vt& __t, const _Clos& __e)
+ : _M_expr1(__t), _M_expr2(__e) {}
+
+ value_type operator[](size_t __i) const
+ { return _Oper()(_M_expr1, _M_expr2[__i]); }
+
+ size_t size() const { return _M_expr2.size(); }
+
+ private:
+ const _Vt& _M_expr1;
+ const _Clos& _M_expr2;
+ };
+
+ template<class _Oper, class _Dom1, class _Dom2>
+ struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2>
+ : _BinBase<_Oper,_Dom1,_Dom2>
+ {
+ typedef _BinBase<_Oper,_Dom1,_Dom2> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {}
+ };
+
+ template<class _Oper, typename _Tp>
+ struct _BinClos<_Oper,_ValArray,_ValArray,_Tp,_Tp>
+ : _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> >
+ {
+ typedef _BinBase<_Oper,valarray<_Tp>,valarray<_Tp> > _Base;
+ typedef _Tp value_type;
+
+ _BinClos(const valarray<_Tp>& __v, const valarray<_Tp>& __w)
+ : _Base(__v, __w) {}
+ };
+
+ template<class _Oper, class _Dom>
+ struct _BinClos<_Oper,_Expr,_ValArray,_Dom,typename _Dom::value_type>
+ : _BinBase<_Oper,_Dom,valarray<typename _Dom::value_type> >
+ {
+ typedef typename _Dom::value_type _Tp;
+ typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const _Dom& __e1, const valarray<_Tp>& __e2)
+ : _Base(__e1, __e2) {}
+ };
+
+ template<class _Oper, class _Dom>
+ struct _BinClos<_Oper,_ValArray,_Expr,typename _Dom::value_type,_Dom>
+ : _BinBase<_Oper,valarray<typename _Dom::value_type>,_Dom>
+ {
+ typedef typename _Dom::value_type _Tp;
+ typedef _BinBase<_Oper,valarray<_Tp>,_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const valarray<_Tp>& __e1, const _Dom& __e2)
+ : _Base(__e1, __e2) {}
+ };
+
+ template<class _Oper, class _Dom>
+ struct _BinClos<_Oper,_Expr,_Constant,_Dom,typename _Dom::value_type>
+ : _BinBase2<_Oper,_Dom>
+ {
+ typedef typename _Dom::value_type _Tp;
+ typedef _BinBase2<_Oper,_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const _Dom& __e1, const _Tp& __e2) : _Base(__e1, __e2) {}
+ };
+
+ template<class _Oper, class _Dom>
+ struct _BinClos<_Oper,_Constant,_Expr,typename _Dom::value_type,_Dom>
+ : _BinBase1<_Oper,_Dom>
+ {
+ typedef typename _Dom::value_type _Tp;
+ typedef _BinBase1<_Oper,_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const _Tp& __e1, const _Dom& __e2) : _Base(__e1, __e2) {}
+ };
+
+ template<class _Oper, typename _Tp>
+ struct _BinClos<_Oper,_ValArray,_Constant,_Tp,_Tp>
+ : _BinBase2<_Oper,valarray<_Tp> >
+ {
+ typedef _BinBase2<_Oper,valarray<_Tp> > _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const valarray<_Tp>& __v, const _Tp& __t) : _Base(__v, __t) {}
+ };
+
+ template<class _Oper, typename _Tp>
+ struct _BinClos<_Oper,_Constant,_ValArray,_Tp,_Tp>
+ : _BinBase1<_Oper,valarray<_Tp> >
+ {
+ typedef _BinBase1<_Oper,valarray<_Tp> > _Base;
+ typedef typename _Base::value_type value_type;
+
+ _BinClos(const _Tp& __t, const valarray<_Tp>& __v) : _Base(__t, __v) {}
+ };
+
+
+ //
+ // slice_array closure.
+ //
+ template<typename _Dom> class _SBase {
+ public:
+ typedef typename _Dom::value_type value_type;
+
+ _SBase (const _Dom& __e, const slice& __s)
+ : _M_expr (__e), _M_slice (__s) {}
+ value_type operator[] (size_t __i) const
+ { return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; }
+ size_t size() const { return _M_slice.size (); }
+
+ private:
+ const _Dom& _M_expr;
+ const slice& _M_slice;
+ };
+
+ template<typename _Tp> class _SBase<_Array<_Tp> > {
+ public:
+ typedef _Tp value_type;
+
+ _SBase (_Array<_Tp> __a, const slice& __s)
+ : _M_array (__a._M_data+__s.start()), _M_size (__s.size()),
+ _M_stride (__s.stride()) {}
+ value_type operator[] (size_t __i) const
+ { return _M_array._M_data[__i * _M_stride]; }
+ size_t size() const { return _M_size; }
+
+ private:
+ const _Array<_Tp> _M_array;
+ const size_t _M_size;
+ const size_t _M_stride;
+ };
+
+ template<class _Dom> struct _SClos<_Expr,_Dom> : _SBase<_Dom> {
+ typedef _SBase<_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {}
+ };
+
+ template<typename _Tp>
+ struct _SClos<_ValArray,_Tp> : _SBase<_Array<_Tp> > {
+ typedef _SBase<_Array<_Tp> > _Base;
+ typedef _Tp value_type;
+
+ _SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {}
+ };
+
+} // std::
+
+
+#endif /* _CPP_VALARRAY_BEFORE_H */
+
+// Local Variables:
+// mode:c++
+// End:
projects / thirdparty / gcc.git / commitdiff
