123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556 |
- // The template and inlines for the -*- C++ -*- internal _Meta class.
- // Copyright (C) 1997-2022 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 bits/valarray_after.h
- * This is an internal header file, included by other library headers.
- * Do not attempt to use it directly. @headername{valarray}
- */
- // 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
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
- namespace __detail
- {
- //
- // 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:
- typename _ValArrayRef<_Dom>::__type _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:
- typename _ValArrayRef<_Dom>::__type _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) {}
- };
- } // namespace __detail
-
- //
- // 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(+, struct std::__unary_plus)
- _DEFINE_EXPR_UNARY_OPERATOR(-, struct std::__negate)
- _DEFINE_EXPR_UNARY_OPERATOR(~, struct std::__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(+, struct std::__plus)
- _DEFINE_EXPR_BINARY_OPERATOR(-, struct std::__minus)
- _DEFINE_EXPR_BINARY_OPERATOR(*, struct std::__multiplies)
- _DEFINE_EXPR_BINARY_OPERATOR(/, struct std::__divides)
- _DEFINE_EXPR_BINARY_OPERATOR(%, struct std::__modulus)
- _DEFINE_EXPR_BINARY_OPERATOR(^, struct std::__bitwise_xor)
- _DEFINE_EXPR_BINARY_OPERATOR(&, struct std::__bitwise_and)
- _DEFINE_EXPR_BINARY_OPERATOR(|, struct std::__bitwise_or)
- _DEFINE_EXPR_BINARY_OPERATOR(<<, struct std::__shift_left)
- _DEFINE_EXPR_BINARY_OPERATOR(>>, struct std::__shift_right)
- _DEFINE_EXPR_BINARY_OPERATOR(&&, struct std::__logical_and)
- _DEFINE_EXPR_BINARY_OPERATOR(||, struct std::__logical_or)
- _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to)
- _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to)
- _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
- _DEFINE_EXPR_BINARY_OPERATOR(>, struct std::__greater)
- _DEFINE_EXPR_BINARY_OPERATOR(<=, struct std::__less_equal)
- _DEFINE_EXPR_BINARY_OPERATOR(>=, struct std::__greater_equal)
- #undef _DEFINE_EXPR_BINARY_OPERATOR
- #define _DEFINE_EXPR_UNARY_FUNCTION(_Name, _UName) \
- template<class _Dom> \
- inline _Expr<_UnClos<_UName, _Expr, _Dom>, \
- typename _Dom::value_type> \
- _Name(const _Expr<_Dom, typename _Dom::value_type>& __e) \
- { \
- typedef typename _Dom::value_type _Tp; \
- typedef _UnClos<_UName, _Expr, _Dom> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__e())); \
- } \
- \
- template<typename _Tp> \
- inline _Expr<_UnClos<_UName, _ValArray, _Tp>, _Tp> \
- _Name(const valarray<_Tp>& __v) \
- { \
- typedef _UnClos<_UName, _ValArray, _Tp> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__v)); \
- }
- _DEFINE_EXPR_UNARY_FUNCTION(abs, struct std::_Abs)
- _DEFINE_EXPR_UNARY_FUNCTION(cos, struct std::_Cos)
- _DEFINE_EXPR_UNARY_FUNCTION(acos, struct std::_Acos)
- _DEFINE_EXPR_UNARY_FUNCTION(cosh, struct std::_Cosh)
- _DEFINE_EXPR_UNARY_FUNCTION(sin, struct std::_Sin)
- _DEFINE_EXPR_UNARY_FUNCTION(asin, struct std::_Asin)
- _DEFINE_EXPR_UNARY_FUNCTION(sinh, struct std::_Sinh)
- _DEFINE_EXPR_UNARY_FUNCTION(tan, struct std::_Tan)
- _DEFINE_EXPR_UNARY_FUNCTION(tanh, struct std::_Tanh)
- _DEFINE_EXPR_UNARY_FUNCTION(atan, struct std::_Atan)
- _DEFINE_EXPR_UNARY_FUNCTION(exp, struct std::_Exp)
- _DEFINE_EXPR_UNARY_FUNCTION(log, struct std::_Log)
- _DEFINE_EXPR_UNARY_FUNCTION(log10, struct std::_Log10)
- _DEFINE_EXPR_UNARY_FUNCTION(sqrt, struct std::_Sqrt)
- #undef _DEFINE_EXPR_UNARY_FUNCTION
- #define _DEFINE_EXPR_BINARY_FUNCTION(_Fun, _UFun) \
- template<class _Dom1, class _Dom2> \
- inline _Expr<_BinClos<_UFun, _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<_UFun, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2())); \
- } \
- \
- template<class _Dom> \
- inline _Expr<_BinClos<_UFun, _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<_UFun, _Expr, _ValArray, _Dom, _Tp> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__e(), __v)); \
- } \
- \
- template<class _Dom> \
- inline _Expr<_BinClos<_UFun, _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<_UFun, _ValArray, _Expr, _Tp, _Dom> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__v, __e())); \
- } \
- \
- template<class _Dom> \
- inline _Expr<_BinClos<_UFun, _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<_UFun, _Expr, _Constant, _Dom, _Tp> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__e(), __t)); \
- } \
- \
- template<class _Dom> \
- inline _Expr<_BinClos<_UFun, _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<_UFun, _Constant, _Expr, _Tp, _Dom> _Closure; \
- return _Expr<_Closure, _Tp>(_Closure(__t, __e())); \
- } \
- \
- template<typename _Tp> \
- inline _Expr<_BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \
- _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
- { \
- typedef _BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp> _Closure;\
- return _Expr<_Closure, _Tp>(_Closure(__v, __w)); \
- } \
- \
- template<typename _Tp> \
- inline _Expr<_BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \
- _Fun(const valarray<_Tp>& __v, \
- const typename valarray<_Tp>::value_type& __t) \
- { \
- typedef _BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp> _Closure;\
- return _Expr<_Closure, _Tp>(_Closure(__v, __t)); \
- } \
- \
- template<typename _Tp> \
- inline _Expr<_BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \
- _Fun(const typename valarray<_Tp>::value_type& __t, \
- const valarray<_Tp>& __v) \
- { \
- typedef _BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp> _Closure;\
- return _Expr<_Closure, _Tp>(_Closure(__t, __v)); \
- }
- _DEFINE_EXPR_BINARY_FUNCTION(atan2, struct std::_Atan2)
- _DEFINE_EXPR_BINARY_FUNCTION(pow, struct std::_Pow)
- #undef _DEFINE_EXPR_BINARY_FUNCTION
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- #endif /* _CPP_VALARRAY_AFTER_H */
|