| /* |
| * |
| * 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>::const_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>::const_param_type _FstArgParamType; |
| typedef typename __call_traits<second_argument_type>::const_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<argument_type>::const_param_type _ConstArgParamType; |
| typedef typename __call_traits<typename _Operation::first_argument_type>::const_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()(_ConstArgParamType __x) const |
| { return op(_M_value, __x); } |
| // DR 109 Missing binders for non-const sequence elements |
| 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<argument_type>::const_param_type _ConstArgParamType; |
| typedef typename __call_traits<typename _Operation::second_argument_type>::const_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()(_ConstArgParamType __x) const |
| { return op(__x, value); } |
| // DR 109 Missing binders for non-const sequence elements |
| 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>::const_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>::const_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: |