/home/ntakagi/work/STLport-5.1.5/stlport/stl/_function.h Go to the documentation of this file. /* * * Copyright (c) 1994 * Hewlett-Packard Company * * Copyright (c) 1996-1998 * Silicon Graphics Computer Systems, Inc. * * Copyright (c) 1997 * Moscow Center for SPARC Technology * * Copyright (c) 1999 * Boris Fomitchev * * This material is provided "as is", with absolutely no warranty expressed * or implied. Any use is at your own risk. * * Permission to use or copy this software for any purpose is hereby granted * without fee, provided the above notices are retained on all copies. * Permission to modify the code and to distribute modified code is granted, * provided the above notices are retained, and a notice that the code was * modified is included with the above copyright notice. * */ /* NOTE: This is an internal header file, included by other STL headers. * You should not attempt to use it directly. */ #ifndef _STLP_INTERNAL_FUNCTION_H #define _STLP_INTERNAL_FUNCTION_H #ifndef _STLP_TYPE_TRAITS_H # include <stl/type_traits.h> #endif #ifndef _STLP_INTERNAL_FUNCTION_BASE_H # include <stl/_function_base.h> #endif _STLP_BEGIN_NAMESPACE template <class _Tp> struct not_equal_to : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x != __y; } }; template <class _Tp> struct greater : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x > __y; } }; template <class _Tp> struct greater_equal : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x >= __y; } }; template <class _Tp> struct less_equal : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x <= __y; } }; template <class _Tp> struct divides : public binary_function<_Tp, _Tp, _Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x / __y; } }; template <class _Tp> struct modulus : public binary_function<_Tp, _Tp, _Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x % __y; } }; template <class _Tp> struct negate : public unary_function<_Tp, _Tp> { _Tp operator()(const _Tp& __x) const { return -__x; } }; template <class _Tp> struct logical_and : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x && __y; } }; template <class _Tp> struct logical_or : public binary_function<_Tp, _Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x || __y; } }; template <class _Tp> struct logical_not : public unary_function<_Tp, bool> { bool operator()(const _Tp& __x) const { return !__x; } }; #if !defined (_STLP_NO_EXTENSIONS) // identity_element (not part of the C++ standard). template <class _Tp> inline _Tp identity_element(plus<_Tp>) { return _Tp(0); } template <class _Tp> inline _Tp identity_element(multiplies<_Tp>) { return _Tp(1); } #endif #if defined (_STLP_BASE_TYPEDEF_BUG) // this workaround is needed for SunPro 4.0.1 // suggested by "Martin Abernethy" <gma@paston.co.uk>: // We have to introduce the XXary_predicate_aux structures in order to // access the argument and return types of predicate functions supplied // as type parameters. SUN C++ 4.0.1 compiler gives errors for template type parameters // of the form 'name1::name2', where name1 is itself a type parameter. template <class _Pair> struct __pair_aux : private _Pair { typedef typename _Pair::first_type first_type; typedef typename _Pair::second_type second_type; }; template <class _Operation> struct __unary_fun_aux : private _Operation { typedef typename _Operation::argument_type argument_type; typedef typename _Operation::result_type result_type; }; template <class _Operation> struct __binary_fun_aux : private _Operation { typedef typename _Operation::first_argument_type first_argument_type; typedef typename _Operation::second_argument_type second_argument_type; typedef typename _Operation::result_type result_type; }; # define __UNARY_ARG(__Operation,__type) __unary_fun_aux<__Operation>::__type # define __BINARY_ARG(__Operation,__type) __binary_fun_aux<__Operation>::__type # define __PAIR_ARG(__Pair,__type) __pair_aux<__Pair>::__type #else # define __UNARY_ARG(__Operation,__type) __Operation::__type # define __BINARY_ARG(__Operation,__type) __Operation::__type # define __PAIR_ARG(__Pair,__type) __Pair::__type #endif template <class _Predicate> class unary_negate : public unary_function<typename __UNARY_ARG(_Predicate, argument_type), bool> { typedef unary_function<typename __UNARY_ARG(_Predicate, argument_type), bool> _Base; public: typedef typename _Base::argument_type argument_type; private: typedef typename __call_traits<argument_type>::param_type _ArgParamType; protected: _Predicate _M_pred; public: explicit unary_negate(const _Predicate& __x) : _M_pred(__x) {} bool operator()(_ArgParamType __x) const { return !_M_pred(__x); } }; template <class _Predicate> inline unary_negate<_Predicate> not1(const _Predicate& __pred) { return unary_negate<_Predicate>(__pred); } template <class _Predicate> class binary_negate : public binary_function<typename __BINARY_ARG(_Predicate, first_argument_type), typename __BINARY_ARG(_Predicate, second_argument_type), bool> { typedef binary_function<typename __BINARY_ARG(_Predicate, first_argument_type), typename __BINARY_ARG(_Predicate, second_argument_type), bool> _Base; public: typedef typename _Base::first_argument_type first_argument_type; typedef typename _Base::second_argument_type second_argument_type; private: typedef typename __call_traits<first_argument_type>::param_type _FstArgParamType; typedef typename __call_traits<second_argument_type>::param_type _SndArgParamType; protected: _Predicate _M_pred; public: explicit binary_negate(const _Predicate& __x) : _M_pred(__x) {} bool operator()(_FstArgParamType __x, _SndArgParamType __y) const { return !_M_pred(__x, __y); } }; template <class _Predicate> inline binary_negate<_Predicate> not2(const _Predicate& __pred) { return binary_negate<_Predicate>(__pred); } template <class _Operation> class binder1st : public unary_function<typename __BINARY_ARG(_Operation, second_argument_type), typename __BINARY_ARG(_Operation, result_type) > { typedef unary_function<typename __BINARY_ARG(_Operation, second_argument_type), typename __BINARY_ARG(_Operation, result_type) > _Base; public: typedef typename _Base::argument_type argument_type; typedef typename _Base::result_type result_type; private: typedef typename __call_traits<argument_type>::param_type _ArgParamType; typedef typename __call_traits<typename _Operation::first_argument_type>::param_type _ValueParamType; protected: //op is a Standard name (20.3.6.1), do no make it STLport naming convention compliant. _Operation op; typename _Operation::first_argument_type _M_value; public: binder1st(const _Operation& __x, _ValueParamType __y) : op(__x), _M_value(__y) {} result_type operator()(_ArgParamType __x) const { return op(_M_value, __x); } }; template <class _Operation, class _Tp> inline binder1st<_Operation> bind1st(const _Operation& __fn, const _Tp& __x) { typedef typename _Operation::first_argument_type _Arg1_type; return binder1st<_Operation>(__fn, _Arg1_type(__x)); } template <class _Operation> class binder2nd : public unary_function<typename __BINARY_ARG(_Operation, first_argument_type), typename __BINARY_ARG(_Operation, result_type)> { typedef unary_function<typename __BINARY_ARG(_Operation, first_argument_type), typename __BINARY_ARG(_Operation, result_type)> _Base; public: typedef typename _Base::argument_type argument_type; typedef typename _Base::result_type result_type; private: typedef typename __call_traits<argument_type>::param_type _ArgParamType; typedef typename __call_traits<typename _Operation::second_argument_type>::param_type _ValueParamType; protected: //op is a Standard name (20.3.6.3), do no make it STLport naming convention compliant. _Operation op; typename _Operation::second_argument_type value; public: binder2nd(const _Operation& __x, _ValueParamType __y) : op(__x), value(__y) {} result_type operator()(_ArgParamType __x) const { return op(__x, value); } }; template <class _Operation, class _Tp> inline binder2nd<_Operation> bind2nd(const _Operation& __fn, const _Tp& __x) { typedef typename _Operation::second_argument_type _Arg2_type; return binder2nd<_Operation>(__fn, _Arg2_type(__x)); } #if !defined (_STLP_NO_EXTENSIONS) // unary_compose and binary_compose (extensions, not part of the standard). template <class _Operation1, class _Operation2> class unary_compose : public unary_function<typename __UNARY_ARG(_Operation2, argument_type), typename __UNARY_ARG(_Operation1, result_type)> { typedef unary_function<typename __UNARY_ARG(_Operation2, argument_type), typename __UNARY_ARG(_Operation1, result_type)> _Base; public: typedef typename _Base::argument_type argument_type; typedef typename _Base::result_type result_type; private: typedef typename __call_traits<argument_type>::param_type _ArgParamType; protected: _Operation1 _M_fn1; _Operation2 _M_fn2; public: unary_compose(const _Operation1& __x, const _Operation2& __y) : _M_fn1(__x), _M_fn2(__y) {} result_type operator()(_ArgParamType __x) const { return _M_fn1(_M_fn2(__x)); } }; template <class _Operation1, class _Operation2> inline unary_compose<_Operation1,_Operation2> compose1(const _Operation1& __fn1, const _Operation2& __fn2) { return unary_compose<_Operation1,_Operation2>(__fn1, __fn2); } template <class _Operation1, class _Operation2, class _Operation3> class binary_compose : public unary_function<typename __UNARY_ARG(_Operation2, argument_type), typename __BINARY_ARG(_Operation1, result_type)> { typedef unary_function<typename __UNARY_ARG(_Operation2, argument_type), typename __BINARY_ARG(_Operation1, result_type)> _Base; public: typedef typename _Base::argument_type argument_type; typedef typename _Base::result_type result_type; private: typedef typename __call_traits<argument_type>::param_type _ArgParamType; protected: _Operation1 _M_fn1; _Operation2 _M_fn2; _Operation3 _M_fn3; public: binary_compose(const _Operation1& __x, const _Operation2& __y, const _Operation3& __z) : _M_fn1(__x), _M_fn2(__y), _M_fn3(__z) { } result_type operator()(_ArgParamType __x) const { return _M_fn1(_M_fn2(__x), _M_fn3(__x)); } }; template <class _Operation1, class _Operation2, class _Operation3> inline binary_compose<_Operation1, _Operation2, _Operation3> compose2(const _Operation1& __fn1, const _Operation2& __fn2, const _Operation3& __fn3) { return binary_compose<_Operation1,_Operation2,_Operation3>(__fn1, __fn2, __fn3); } // identity is an extension: it is not part of the standard. template <class _Tp> struct identity : public _STLP_PRIV _Identity<_Tp> {}; // select1st and select2nd are extensions: they are not part of the standard. template <class _Pair> struct select1st : public _STLP_PRIV _Select1st<_Pair> {}; template <class _Pair> struct select2nd : public _STLP_PRIV _Select2nd<_Pair> {}; template <class _Arg1, class _Arg2> struct project1st : public _STLP_PRIV _Project1st<_Arg1, _Arg2> {}; template <class _Arg1, class _Arg2> struct project2nd : public _STLP_PRIV _Project2nd<_Arg1, _Arg2> {}; // constant_void_fun, constant_unary_fun, and constant_binary_fun are // extensions: they are not part of the standard. (The same, of course, // is true of the helper functions constant0, constant1, and constant2.) _STLP_MOVE_TO_PRIV_NAMESPACE template <class _Result> struct _Constant_void_fun { typedef _Result result_type; result_type _M_val; _Constant_void_fun(const result_type& __v) : _M_val(__v) {} const result_type& operator()() const { return _M_val; } }; _STLP_MOVE_TO_STD_NAMESPACE template <class _Result> struct constant_void_fun : public _STLP_PRIV _Constant_void_fun<_Result> { constant_void_fun(const _Result& __v) : _STLP_PRIV _Constant_void_fun<_Result>(__v) {} }; template <class _Result, _STLP_DFL_TMPL_PARAM( _Argument , _Result) > struct constant_unary_fun : public _STLP_PRIV _Constant_unary_fun<_Result, _Argument> { constant_unary_fun(const _Result& __v) : _STLP_PRIV _Constant_unary_fun<_Result, _Argument>(__v) {} }; template <class _Result, _STLP_DFL_TMPL_PARAM( _Arg1 , _Result), _STLP_DFL_TMPL_PARAM( _Arg2 , _Arg1) > struct constant_binary_fun : public _STLP_PRIV _Constant_binary_fun<_Result, _Arg1, _Arg2> { constant_binary_fun(const _Result& __v) : _STLP_PRIV _Constant_binary_fun<_Result, _Arg1, _Arg2>(__v) {} }; template <class _Result> inline constant_void_fun<_Result> constant0(const _Result& __val) { return constant_void_fun<_Result>(__val); } template <class _Result> inline constant_unary_fun<_Result,_Result> constant1(const _Result& __val) { return constant_unary_fun<_Result,_Result>(__val); } template <class _Result> inline constant_binary_fun<_Result,_Result,_Result> constant2(const _Result& __val) { return constant_binary_fun<_Result,_Result,_Result>(__val); } // subtractive_rng is an extension: it is not part of the standard. // Note: this code assumes that int is 32 bits. class subtractive_rng : public unary_function<_STLP_UINT32_T, _STLP_UINT32_T> { private: _STLP_UINT32_T _M_table[55]; _STLP_UINT32_T _M_index1; _STLP_UINT32_T _M_index2; public: _STLP_UINT32_T operator()(_STLP_UINT32_T __limit) { _M_index1 = (_M_index1 + 1) % 55; _M_index2 = (_M_index2 + 1) % 55; _M_table[_M_index1] = _M_table[_M_index1] - _M_table[_M_index2]; return _M_table[_M_index1] % __limit; } void _M_initialize(_STLP_UINT32_T __seed) { _STLP_UINT32_T __k = 1; _M_table[54] = __seed; _STLP_UINT32_T __i; for (__i = 0; __i < 54; __i++) { _STLP_UINT32_T __ii = (21 * (__i + 1) % 55) - 1; _M_table[__ii] = __k; __k = __seed - __k; __seed = _M_table[__ii]; } for (int __loop = 0; __loop < 4; __loop++) { for (__i = 0; __i < 55; __i++) _M_table[__i] = _M_table[__i] - _M_table[(1 + __i + 30) % 55]; } _M_index1 = 0; _M_index2 = 31; } subtractive_rng(unsigned int __seed) { _M_initialize(__seed); } subtractive_rng() { _M_initialize(161803398ul); } }; #endif /* _STLP_NO_EXTENSIONS */ _STLP_END_NAMESPACE #include <stl/_function_adaptors.h> #endif /* _STLP_INTERNAL_FUNCTION_H */ // Local Variables: // mode:C++ // End:

• ソフトウェア開発
• ホームページ制作
• Doxygen Source Document
• Tcl Source Document