--- /dev/null
+// The template and inlines for the -*- C++ -*- internal _Meta class.
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2009 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 3, 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file valarray_after.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@cmla.ens-cachan.fr>
+
+#ifndef _VALARRAY_AFTER_H
+#define _VALARRAY_AFTER_H 1
+
+#pragma GCC system_header
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
+ //
+ // gslice_array closure.
+ //
+ template<class _Dom>
+ class _GBase
+ {
+ public:
+ typedef typename _Dom::value_type value_type;
+
+ _GBase (const _Dom& __e, const valarray<size_t>& __i)
+ : _M_expr (__e), _M_index(__i) {}
+
+ value_type
+ operator[] (size_t __i) const
+ { return _M_expr[_M_index[__i]]; }
+
+ size_t
+ size () const
+ { return _M_index.size(); }
+
+ private:
+ const _Dom& _M_expr;
+ const valarray<size_t>& _M_index;
+ };
+
+ template<typename _Tp>
+ class _GBase<_Array<_Tp> >
+ {
+ public:
+ typedef _Tp value_type;
+
+ _GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
+ : _M_array (__a), _M_index(__i) {}
+
+ value_type
+ operator[] (size_t __i) const
+ { return _M_array._M_data[_M_index[__i]]; }
+
+ size_t
+ size () const
+ { return _M_index.size(); }
+
+ private:
+ const _Array<_Tp> _M_array;
+ const valarray<size_t>& _M_index;
+ };
+
+ template<class _Dom>
+ struct _GClos<_Expr, _Dom>
+ : _GBase<_Dom>
+ {
+ typedef _GBase<_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _GClos (const _Dom& __e, const valarray<size_t>& __i)
+ : _Base (__e, __i) {}
+ };
+
+ template<typename _Tp>
+ struct _GClos<_ValArray, _Tp>
+ : _GBase<_Array<_Tp> >
+ {
+ typedef _GBase<_Array<_Tp> > _Base;
+ typedef typename _Base::value_type value_type;
+
+ _GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
+ : _Base (__a, __i) {}
+ };
+
+ //
+ // indirect_array closure
+ //
+ template<class _Dom>
+ class _IBase
+ {
+ public:
+ typedef typename _Dom::value_type value_type;
+
+ _IBase (const _Dom& __e, const valarray<size_t>& __i)
+ : _M_expr (__e), _M_index (__i) {}
+
+ value_type
+ operator[] (size_t __i) const
+ { return _M_expr[_M_index[__i]]; }
+
+ size_t
+ size() const
+ { return _M_index.size(); }
+
+ private:
+ const _Dom& _M_expr;
+ const valarray<size_t>& _M_index;
+ };
+
+ template<class _Dom>
+ struct _IClos<_Expr, _Dom>
+ : _IBase<_Dom>
+ {
+ typedef _IBase<_Dom> _Base;
+ typedef typename _Base::value_type value_type;
+
+ _IClos (const _Dom& __e, const valarray<size_t>& __i)
+ : _Base (__e, __i) {}
+ };
+
+ template<typename _Tp>
+ struct _IClos<_ValArray, _Tp>
+ : _IBase<valarray<_Tp> >
+ {
+ typedef _IBase<valarray<_Tp> > _Base;
+ typedef _Tp value_type;
+
+ _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
+ : _Base (__a, __i) {}
+ };
+
+ //
+ // class _Expr
+ //
+ template<class _Clos, typename _Tp>
+ class _Expr
+ {
+ public:
+ typedef _Tp value_type;
+
+ _Expr(const _Clos&);
+
+ const _Clos& operator()() const;
+
+ value_type operator[](size_t) const;
+ valarray<value_type> operator[](slice) const;
+ valarray<value_type> operator[](const gslice&) const;
+ valarray<value_type> operator[](const valarray<bool>&) const;
+ valarray<value_type> operator[](const valarray<size_t>&) const;
+
+ _Expr<_UnClos<__unary_plus, std::_Expr, _Clos>, value_type>
+ operator+() const;
+
+ _Expr<_UnClos<__negate, std::_Expr, _Clos>, value_type>
+ operator-() const;
+
+ _Expr<_UnClos<__bitwise_not, std::_Expr, _Clos>, value_type>
+ operator~() const;
+
+ _Expr<_UnClos<__logical_not, std::_Expr, _Clos>, bool>
+ operator!() const;
+
+ size_t size() const;
+ value_type sum() const;
+
+ valarray<value_type> shift(int) const;
+ valarray<value_type> cshift(int) const;
+
+ value_type min() const;
+ value_type max() const;
+
+ valarray<value_type> apply(value_type (*)(const value_type&)) const;
+ valarray<value_type> apply(value_type (*)(value_type)) const;
+
+ private:
+ const _Clos _M_closure;
+ };
+
+ template<class _Clos, typename _Tp>
+ inline
+ _Expr<_Clos, _Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {}
+
+ template<class _Clos, typename _Tp>
+ inline const _Clos&
+ _Expr<_Clos, _Tp>::operator()() const
+ { return _M_closure; }
+
+ template<class _Clos, typename _Tp>
+ inline _Tp
+ _Expr<_Clos, _Tp>::operator[](size_t __i) const
+ { return _M_closure[__i]; }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::operator[](slice __s) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this)[__s];
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::operator[](const gslice& __gs) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this)[__gs];
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::operator[](const valarray<bool>& __m) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this)[__m];
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::operator[](const valarray<size_t>& __i) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this)[__i];
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline size_t
+ _Expr<_Clos, _Tp>::size() const
+ { return _M_closure.size(); }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::shift(int __n) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this).shift(__n);
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::cshift(int __n) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this).cshift(__n);
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
+ return __v;
+ }
+
+ template<class _Clos, typename _Tp>
+ inline valarray<_Tp>
+ _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
+ {
+ valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
+ return __v;
+ }
+
+ // XXX: replace this with a more robust summation algorithm.
+ template<class _Clos, typename _Tp>
+ inline _Tp
+ _Expr<_Clos, _Tp>::sum() const
+ {
+ size_t __n = _M_closure.size();
+ if (__n == 0)
+ return _Tp();
+ else
+ {
+ _Tp __s = _M_closure[--__n];
+ while (__n != 0)
+ __s += _M_closure[--__n];
+ return __s;
+ }
+ }
+
+ template<class _Clos, typename _Tp>
+ inline _Tp
+ _Expr<_Clos, _Tp>::min() const
+ { return __valarray_min(_M_closure); }
+
+ template<class _Clos, typename _Tp>
+ inline _Tp
+ _Expr<_Clos, _Tp>::max() const
+ { return __valarray_max(_M_closure); }
+
+ template<class _Dom, typename _Tp>
+ inline _Expr<_UnClos<__logical_not, _Expr, _Dom>, bool>
+ _Expr<_Dom, _Tp>::operator!() const
+ {
+ typedef _UnClos<__logical_not, std::_Expr, _Dom> _Closure;
+ return _Expr<_Closure, bool>(_Closure(this->_M_closure));
+ }
+
+#define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \
+ template<class _Dom, typename _Tp> \
+ inline _Expr<_UnClos<_Name, std::_Expr, _Dom>, _Tp> \
+ _Expr<_Dom, _Tp>::operator _Op() const \
+ { \
+ typedef _UnClos<_Name, std::_Expr, _Dom> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(this->_M_closure)); \
+ }
+
+ _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus)
+ _DEFINE_EXPR_UNARY_OPERATOR(-, __negate)
+ _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not)
+
+#undef _DEFINE_EXPR_UNARY_OPERATOR
+
+#define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \
+ template<class _Dom1, class _Dom2> \
+ inline _Expr<_BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2>, \
+ typename __fun<_Name, typename _Dom1::value_type>::result_type> \
+ operator _Op(const _Expr<_Dom1, typename _Dom1::value_type>& __v, \
+ const _Expr<_Dom2, typename _Dom2::value_type>& __w) \
+ { \
+ typedef typename _Dom1::value_type _Arg; \
+ typedef typename __fun<_Name, _Arg>::result_type _Value; \
+ typedef _BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
+ return _Expr<_Closure, _Value>(_Closure(__v(), __w())); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<_Name, _Expr, _Constant, _Dom, \
+ typename _Dom::value_type>, \
+ typename __fun<_Name, typename _Dom::value_type>::result_type> \
+ operator _Op(const _Expr<_Dom, typename _Dom::value_type>& __v, \
+ const typename _Dom::value_type& __t) \
+ { \
+ typedef typename _Dom::value_type _Arg; \
+ typedef typename __fun<_Name, _Arg>::result_type _Value; \
+ typedef _BinClos<_Name, _Expr, _Constant, _Dom, _Arg> _Closure; \
+ return _Expr<_Closure, _Value>(_Closure(__v(), __t)); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<_Name, _Constant, _Expr, \
+ typename _Dom::value_type, _Dom>, \
+ typename __fun<_Name, typename _Dom::value_type>::result_type> \
+ operator _Op(const typename _Dom::value_type& __t, \
+ const _Expr<_Dom, typename _Dom::value_type>& __v) \
+ { \
+ typedef typename _Dom::value_type _Arg; \
+ typedef typename __fun<_Name, _Arg>::result_type _Value; \
+ typedef _BinClos<_Name, _Constant, _Expr, _Arg, _Dom> _Closure; \
+ return _Expr<_Closure, _Value>(_Closure(__t, __v())); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<_Name, _Expr, _ValArray, \
+ _Dom, typename _Dom::value_type>, \
+ typename __fun<_Name, typename _Dom::value_type>::result_type> \
+ operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e, \
+ const valarray<typename _Dom::value_type>& __v) \
+ { \
+ typedef typename _Dom::value_type _Arg; \
+ typedef typename __fun<_Name, _Arg>::result_type _Value; \
+ typedef _BinClos<_Name, _Expr, _ValArray, _Dom, _Arg> _Closure; \
+ return _Expr<_Closure, _Value>(_Closure(__e(), __v)); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<_Name, _ValArray, _Expr, \
+ typename _Dom::value_type, _Dom>, \
+ typename __fun<_Name, typename _Dom::value_type>::result_type> \
+ operator _Op(const valarray<typename _Dom::value_type>& __v, \
+ const _Expr<_Dom, typename _Dom::value_type>& __e) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef typename __fun<_Name, _Tp>::result_type _Value; \
+ typedef _BinClos<_Name, _ValArray, _Expr, _Tp, _Dom> _Closure; \
+ return _Expr<_Closure, _Value>(_Closure(__v, __e ())); \
+ }
+
+ _DEFINE_EXPR_BINARY_OPERATOR(+, __plus)
+ _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
+ _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
+ _DEFINE_EXPR_BINARY_OPERATOR(/, __divides)
+ _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus)
+ _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
+ _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
+ _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or)
+ _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left)
+ _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
+ _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
+ _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or)
+ _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
+ _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to)
+ _DEFINE_EXPR_BINARY_OPERATOR(<, __less)
+ _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
+ _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal)
+ _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal)
+
+#undef _DEFINE_EXPR_BINARY_OPERATOR
+
+#define _DEFINE_EXPR_UNARY_FUNCTION(_Name) \
+ template<class _Dom> \
+ inline _Expr<_UnClos<__##_Name, _Expr, _Dom>, \
+ typename _Dom::value_type> \
+ _Name(const _Expr<_Dom, typename _Dom::value_type>& __e) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef _UnClos<__##_Name, _Expr, _Dom> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__e())); \
+ } \
+ \
+ template<typename _Tp> \
+ inline _Expr<_UnClos<__##_Name, _ValArray, _Tp>, _Tp> \
+ _Name(const valarray<_Tp>& __v) \
+ { \
+ typedef _UnClos<__##_Name, _ValArray, _Tp> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__v)); \
+ }
+
+ _DEFINE_EXPR_UNARY_FUNCTION(abs)
+ _DEFINE_EXPR_UNARY_FUNCTION(cos)
+ _DEFINE_EXPR_UNARY_FUNCTION(acos)
+ _DEFINE_EXPR_UNARY_FUNCTION(cosh)
+ _DEFINE_EXPR_UNARY_FUNCTION(sin)
+ _DEFINE_EXPR_UNARY_FUNCTION(asin)
+ _DEFINE_EXPR_UNARY_FUNCTION(sinh)
+ _DEFINE_EXPR_UNARY_FUNCTION(tan)
+ _DEFINE_EXPR_UNARY_FUNCTION(tanh)
+ _DEFINE_EXPR_UNARY_FUNCTION(atan)
+ _DEFINE_EXPR_UNARY_FUNCTION(exp)
+ _DEFINE_EXPR_UNARY_FUNCTION(log)
+ _DEFINE_EXPR_UNARY_FUNCTION(log10)
+ _DEFINE_EXPR_UNARY_FUNCTION(sqrt)
+
+#undef _DEFINE_EXPR_UNARY_FUNCTION
+
+#define _DEFINE_EXPR_BINARY_FUNCTION(_Fun) \
+ template<class _Dom1, class _Dom2> \
+ inline _Expr<_BinClos<__##_Fun, _Expr, _Expr, _Dom1, _Dom2>, \
+ typename _Dom1::value_type> \
+ _Fun(const _Expr<_Dom1, typename _Dom1::value_type>& __e1, \
+ const _Expr<_Dom2, typename _Dom2::value_type>& __e2) \
+ { \
+ typedef typename _Dom1::value_type _Tp; \
+ typedef _BinClos<__##_Fun, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2())); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<__##_Fun, _Expr, _ValArray, _Dom, \
+ typename _Dom::value_type>, \
+ typename _Dom::value_type> \
+ _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \
+ const valarray<typename _Dom::value_type>& __v) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef _BinClos<__##_Fun, _Expr, _ValArray, _Dom, _Tp> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__e(), __v)); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<__##_Fun, _ValArray, _Expr, \
+ typename _Dom::value_type, _Dom>, \
+ typename _Dom::value_type> \
+ _Fun(const valarray<typename _Dom::valarray>& __v, \
+ const _Expr<_Dom, typename _Dom::value_type>& __e) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef _BinClos<__##_Fun, _ValArray, _Expr, _Tp, _Dom> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__v, __e())); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<__##_Fun, _Expr, _Constant, _Dom, \
+ typename _Dom::value_type>, \
+ typename _Dom::value_type> \
+ _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \
+ const typename _Dom::value_type& __t) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef _BinClos<__##_Fun, _Expr, _Constant, _Dom, _Tp> _Closure;\
+ return _Expr<_Closure, _Tp>(_Closure(__e(), __t)); \
+ } \
+ \
+ template<class _Dom> \
+ inline _Expr<_BinClos<__##_Fun, _Constant, _Expr, \
+ typename _Dom::value_type, _Dom>, \
+ typename _Dom::value_type> \
+ _Fun(const typename _Dom::value_type& __t, \
+ const _Expr<_Dom, typename _Dom::value_type>& __e) \
+ { \
+ typedef typename _Dom::value_type _Tp; \
+ typedef _BinClos<__##_Fun, _Constant, _Expr, _Tp, _Dom> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__t, __e())); \
+ } \
+ \
+ template<typename _Tp> \
+ inline _Expr<_BinClos<__##_Fun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \
+ _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
+ { \
+ typedef _BinClos<__##_Fun, _ValArray, _ValArray, _Tp, _Tp> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__v, __w)); \
+ } \
+ \
+ template<typename _Tp> \
+ inline _Expr<_BinClos<__##_Fun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \
+ _Fun(const valarray<_Tp>& __v, const _Tp& __t) \
+ { \
+ typedef _BinClos<__##_Fun, _ValArray, _Constant, _Tp, _Tp> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__v, __t)); \
+ } \
+ \
+ template<typename _Tp> \
+ inline _Expr<_BinClos<__##_Fun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \
+ _Fun(const _Tp& __t, const valarray<_Tp>& __v) \
+ { \
+ typedef _BinClos<__##_Fun, _Constant, _ValArray, _Tp, _Tp> _Closure; \
+ return _Expr<_Closure, _Tp>(_Closure(__t, __v)); \
+ }
+
+_DEFINE_EXPR_BINARY_FUNCTION(atan2)
+_DEFINE_EXPR_BINARY_FUNCTION(pow)
+
+#undef _DEFINE_EXPR_BINARY_FUNCTION
+
+_GLIBCXX_END_NAMESPACE
+
+#endif /* _CPP_VALARRAY_AFTER_H */
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