diff options
Diffstat (limited to 'libstdc++-v3/include/tr1/functional_iterate.h')
| -rw-r--r-- | libstdc++-v3/include/tr1/functional_iterate.h | 922 |
1 files changed, 0 insertions, 922 deletions
diff --git a/libstdc++-v3/include/tr1/functional_iterate.h b/libstdc++-v3/include/tr1/functional_iterate.h deleted file mode 100644 index 3772e15c714..00000000000 --- a/libstdc++-v3/include/tr1/functional_iterate.h +++ /dev/null @@ -1,922 +0,0 @@ -// TR1 functional -*- C++ -*- - -// Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. -// Written by Douglas Gregor <doug.gregor -at- gmail.com> -// -// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, -// 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. - -/** @file tr1/functional_iterate.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -namespace std -{ -_GLIBCXX_BEGIN_NAMESPACE(_GLIBCXX_TR1) - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - struct _Weak_result_type_impl<_Res(_GLIBCXX_TEMPLATE_ARGS)> - { - typedef _Res result_type; - }; - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - struct _Weak_result_type_impl<_Res (&)(_GLIBCXX_TEMPLATE_ARGS)> - { - typedef _Res result_type; - }; - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - struct _Weak_result_type_impl<_Res (*)(_GLIBCXX_TEMPLATE_ARGS)> - { - typedef _Res result_type; - }; - -#if _GLIBCXX_NUM_ARGS > 0 -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - struct _Weak_result_type_impl< - _Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED)> - { - typedef _Res result_type; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - struct _Weak_result_type_impl< - _Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) const> - { - typedef _Res result_type; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - struct _Weak_result_type_impl< - _Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) volatile> - { - typedef _Res result_type; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - struct _Weak_result_type_impl< - _Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) const volatile> - { - typedef _Res result_type; - }; -#endif - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - class result_of<_Functor(_GLIBCXX_TEMPLATE_ARGS)> - : public _Result_of_impl< - _Has_result_type<_Weak_result_type<_Functor> >::value, - _Functor(_GLIBCXX_TEMPLATE_ARGS)> - { }; - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - struct _Result_of_impl<true, _Functor(_GLIBCXX_TEMPLATE_ARGS)> - { - typedef typename _Weak_result_type<_Functor>::result_type type; - }; - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - struct _Result_of_impl<false, _Functor(_GLIBCXX_TEMPLATE_ARGS)> - { -#if _GLIBCXX_NUM_ARGS > 0 - typedef typename _Functor - ::template result<_Functor(_GLIBCXX_TEMPLATE_ARGS)>::type type; -#else - typedef void type; -#endif - }; - -/** - * @if maint - * Invoke a function object, which may be either a member pointer or a - * function object. The first parameter will tell which. - * @endif - */ -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - inline - typename __gnu_cxx::__enable_if<(!is_member_pointer<_Functor>::value - && !is_function<_Functor>::value - && !is_function<typename remove_pointer<_Functor>::type>::value), - typename result_of<_Functor(_GLIBCXX_TEMPLATE_ARGS)>::type>::__type - __invoke(_Functor& __f _GLIBCXX_COMMA _GLIBCXX_REF_PARAMS) - { - return __f(_GLIBCXX_ARGS); - } - -#if _GLIBCXX_NUM_ARGS > 0 -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - inline - typename __gnu_cxx::__enable_if<(is_member_pointer<_Functor>::value - && !is_function<_Functor>::value - && !is_function<typename remove_pointer<_Functor>::type>::value), - typename result_of<_Functor(_GLIBCXX_TEMPLATE_ARGS)>::type - >::__type - __invoke(_Functor& __f _GLIBCXX_COMMA _GLIBCXX_REF_PARAMS) - { - return mem_fn(__f)(_GLIBCXX_ARGS); - } -#endif - -// To pick up function references (that will become function pointers) -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - inline - typename __gnu_cxx::__enable_if<(is_pointer<_Functor>::value - && is_function<typename remove_pointer<_Functor>::type>::value), - typename result_of<_Functor(_GLIBCXX_TEMPLATE_ARGS)>::type - >::__type - __invoke(_Functor __f _GLIBCXX_COMMA _GLIBCXX_REF_PARAMS) - { - return __f(_GLIBCXX_ARGS); - } - -/** - * @if maint - * Implementation of reference_wrapper::operator() - * @endif -*/ -#if _GLIBCXX_NUM_ARGS > 0 -template<typename _Tp> -template<_GLIBCXX_TEMPLATE_PARAMS> - typename result_of< - typename reference_wrapper<_Tp>::_M_func_type(_GLIBCXX_TEMPLATE_ARGS)>::type - reference_wrapper<_Tp>::operator()(_GLIBCXX_REF_PARAMS) const - { - return __invoke(get(), _GLIBCXX_ARGS); - } -#endif - -#if _GLIBCXX_NUM_ARGS > 0 -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - class _Mem_fn<_Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED)> -#if _GLIBCXX_NUM_ARGS == 1 - : public unary_function<_Class*, _Res> -#elif _GLIBCXX_NUM_ARGS == 2 - : public binary_function<_Class*, _T1, _Res> -#endif - { - typedef _Res (_Class::*_Functor)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED); - - template<typename _Tp> - _Res - _M_call(_Tp& __object, const volatile _Class * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - template<typename _Tp> - _Res - _M_call(_Tp& __ptr, const volatile void * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return ((*__ptr).*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - public: - typedef _Res result_type; - - explicit _Mem_fn(_Functor __pf) : __pmf(__pf) { } - - // Handle objects - _Res - operator()(_Class& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle pointers - _Res - operator()(_Class* __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object->*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle smart pointers, references and pointers to derived - template<typename _Tp> - _Res - operator()(_Tp& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { - return _M_call(__object, &__object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_ARGS_SHIFTED); - } - - private: - _Functor __pmf; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - class _Mem_fn<_Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) const> -#if _GLIBCXX_NUM_ARGS == 1 - : public unary_function<const _Class*, _Res> -#elif _GLIBCXX_NUM_ARGS == 2 - : public binary_function<const _Class*, _T1, _Res> -#endif - { - typedef _Res (_Class::*_Functor)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) const; - - template<typename _Tp> - _Res - _M_call(_Tp& __object, const volatile _Class * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - template<typename _Tp> - _Res - _M_call(_Tp& __ptr, const volatile void * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return ((*__ptr).*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - public: - typedef _Res result_type; - - explicit _Mem_fn(_Functor __pf) : __pmf(__pf) { } - - // Handle objects - _Res - operator()(const _Class& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle pointers - _Res - operator()(const _Class* __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object->*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle smart pointers, references and pointers to derived - template<typename _Tp> - _Res - operator()(_Tp& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { - return _M_call(__object, &__object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_ARGS_SHIFTED); - } - - private: - _Functor __pmf; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - class _Mem_fn<_Res (_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) volatile> -#if _GLIBCXX_NUM_ARGS == 1 - : public unary_function<volatile _Class*, _Res> -#elif _GLIBCXX_NUM_ARGS == 2 - : public binary_function<volatile _Class*, _T1, _Res> -#endif - { - typedef _Res (_Class::*_Functor)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) volatile; - - template<typename _Tp> - _Res - _M_call(_Tp& __object, const volatile _Class * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - template<typename _Tp> - _Res - _M_call(_Tp& __ptr, const volatile void * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return ((*__ptr).*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - public: - typedef _Res result_type; - - explicit _Mem_fn(_Functor __pf) : __pmf(__pf) { } - - // Handle objects - _Res - operator()(volatile _Class& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle pointers - _Res - operator()(volatile _Class* __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object->*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle smart pointers, references and pointers to derived - template<typename _Tp> - _Res - operator()(_Tp& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { - return _M_call(__object, &__object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_ARGS_SHIFTED); - } - private: - _Functor __pmf; - }; - -template<typename _Res, typename _Class _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_TEMPLATE_PARAMS_SHIFTED> - class _Mem_fn<_Res(_Class::*)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) const volatile> -#if _GLIBCXX_NUM_ARGS == 1 - : public unary_function<const volatile _Class*, _Res> -#elif _GLIBCXX_NUM_ARGS == 2 - : public binary_function<const volatile _Class*, _T1, _Res> -#endif - { - typedef _Res (_Class::*_Functor)(_GLIBCXX_TEMPLATE_ARGS_SHIFTED) - const volatile; - - template<typename _Tp> - _Res - _M_call(_Tp& __object, const volatile _Class * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - template<typename _Tp> - _Res - _M_call(_Tp& __ptr, const volatile void * _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return ((*__ptr).*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - public: - typedef _Res result_type; - - explicit _Mem_fn(_Functor __pf) : __pmf(__pf) { } - - // Handle objects - _Res - operator()(const volatile _Class& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object.*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle pointers - _Res - operator()(const volatile _Class* __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { return (__object->*__pmf)(_GLIBCXX_ARGS_SHIFTED); } - - // Handle smart pointers, references and pointers to derived - template<typename _Tp> - _Res - operator()(_Tp& __object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_PARAMS_SHIFTED) const - { - return _M_call(__object, &__object _GLIBCXX_COMMA_SHIFTED - _GLIBCXX_ARGS_SHIFTED); - } - - private: - _Functor __pmf; - }; -#endif - -#if _GLIBCXX_NUM_ARGS > 0 -namespace placeholders -{ -namespace -{ - _Placeholder<_GLIBCXX_NUM_ARGS> _GLIBCXX_JOIN(_,_GLIBCXX_NUM_ARGS); -} // anonymous namespace -} -#endif - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Bind<_Functor(_GLIBCXX_TEMPLATE_ARGS)> - : public _Weak_result_type<_Functor> -{ - typedef _Bind __self_type; - - _Functor _M_f; - _GLIBCXX_BIND_MEMBERS - - public: -#if _GLIBCXX_NUM_ARGS == 0 - explicit -#endif - _Bind(_Functor __f _GLIBCXX_COMMA _GLIBCXX_PARAMS) - : _M_f(__f) _GLIBCXX_COMMA _GLIBCXX_BIND_MEMBERS_INIT { } - -#define _GLIBCXX_BIND_REPEAT_HEADER <tr1/bind_iterate.h> -#include <tr1/bind_repeat.h> -#undef _GLIBCXX_BIND_REPEAT_HEADER -}; - -template<typename _Result, typename _Functor - _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Bind_result<_Result, _Functor(_GLIBCXX_TEMPLATE_ARGS)> -{ - _Functor _M_f; - _GLIBCXX_BIND_MEMBERS - - public: - typedef _Result result_type; - -#if _GLIBCXX_NUM_ARGS == 0 - explicit -#endif - _Bind_result(_Functor __f _GLIBCXX_COMMA _GLIBCXX_PARAMS) - : _M_f(__f) _GLIBCXX_COMMA _GLIBCXX_BIND_MEMBERS_INIT { } - -#define _GLIBCXX_BIND_REPEAT_HEADER <tr1/bind_iterate.h> -#define _GLIBCXX_BIND_HAS_RESULT_TYPE -#include <tr1/bind_repeat.h> -#undef _GLIBCXX_BIND_HAS_RESULT_TYPE -#undef _GLIBCXX_BIND_REPEAT_HEADER -}; - -// Handle arbitrary function objects -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -inline -_Bind<typename _Maybe_wrap_member_pointer<_Functor>::type - (_GLIBCXX_TEMPLATE_ARGS)> -bind(_Functor __f _GLIBCXX_COMMA _GLIBCXX_PARAMS) -{ - typedef _Maybe_wrap_member_pointer<_Functor> __maybe_type; - typedef typename __maybe_type::type __functor_type; - typedef _Bind<__functor_type(_GLIBCXX_TEMPLATE_ARGS)> __result_type; - return __result_type(__maybe_type::__do_wrap(__f) - _GLIBCXX_COMMA _GLIBCXX_ARGS); -} - -template<typename _Result, typename _Functor - _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -inline -_Bind_result<_Result, - typename _Maybe_wrap_member_pointer<_Functor>::type - (_GLIBCXX_TEMPLATE_ARGS)> -bind(_Functor __f _GLIBCXX_COMMA _GLIBCXX_PARAMS) -{ - typedef _Maybe_wrap_member_pointer<_Functor> __maybe_type; - typedef typename __maybe_type::type __functor_type; - typedef _Bind_result<_Result, __functor_type(_GLIBCXX_TEMPLATE_ARGS)> - __result_type; - return __result_type(__maybe_type::__do_wrap(__f) - _GLIBCXX_COMMA _GLIBCXX_ARGS); -} - -template<typename _Res, typename _Functor _GLIBCXX_COMMA - _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<_Res(_GLIBCXX_TEMPLATE_ARGS), _Functor> - : public _Function_base::_Base_manager<_Functor> -{ - typedef _Function_base::_Base_manager<_Functor> _Base; - - public: - static _Res - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - return (*_Base::_M_get_pointer(__functor))(_GLIBCXX_ARGS); - } -}; - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<void(_GLIBCXX_TEMPLATE_ARGS), _Functor> - : public _Function_base::_Base_manager<_Functor> -{ - typedef _Function_base::_Base_manager<_Functor> _Base; - - public: - static void - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - (*_Base::_M_get_pointer(__functor))(_GLIBCXX_ARGS); - } -}; - -template<typename _Res, typename _Functor _GLIBCXX_COMMA - _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<_Res(_GLIBCXX_TEMPLATE_ARGS), - reference_wrapper<_Functor> > - : public _Function_base::_Ref_manager<_Functor> -{ - typedef _Function_base::_Ref_manager<_Functor> _Base; - - public: - static _Res - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - return __callable_functor(**_Base::_M_get_pointer(__functor)) - (_GLIBCXX_ARGS); - } -}; - -template<typename _Functor _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<void(_GLIBCXX_TEMPLATE_ARGS), - reference_wrapper<_Functor> > - : public _Function_base::_Ref_manager<_Functor> -{ - typedef _Function_base::_Ref_manager<_Functor> _Base; - - public: - static void - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - __callable_functor(**_Base::_M_get_pointer(__functor))(_GLIBCXX_ARGS); - } -}; - -template<typename _Class, typename _Member, typename _Res - _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<_Res(_GLIBCXX_TEMPLATE_ARGS), _Member _Class::*> - : public _Function_handler<void(_GLIBCXX_TEMPLATE_ARGS), _Member _Class::*> -{ - typedef _Function_handler<void(_GLIBCXX_TEMPLATE_ARGS), _Member _Class::*> - _Base; - - public: - static _Res - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - return std::_GLIBCXX_TR1::mem_fn(_Base::_M_get_pointer(__functor)->__value) - (_GLIBCXX_ARGS); - } -}; - -template<typename _Class, typename _Member - _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class _Function_handler<void(_GLIBCXX_TEMPLATE_ARGS), _Member _Class::*> - : public _Function_base::_Base_manager< - _Simple_type_wrapper< _Member _Class::* > > -{ - typedef _Member _Class::* _Functor; - typedef _Simple_type_wrapper< _Functor > _Wrapper; - typedef _Function_base::_Base_manager<_Wrapper> _Base; - - public: - static bool - _M_manager(_Any_data& __dest, const _Any_data& __source, - _Manager_operation __op) - { - switch (__op) { - case __get_type_info: - __dest._M_access<const type_info*>() = &typeid(_Functor); - break; - - case __get_functor_ptr: - __dest._M_access<_Functor*>() = - &_Base::_M_get_pointer(__source)->__value; - break; - - default: - _Base::_M_manager(__dest, __source, __op); - } - return false; - } - - static void - _M_invoke(const _Any_data& __functor _GLIBCXX_COMMA _GLIBCXX_PARAMS) - { - std::_GLIBCXX_TR1::mem_fn(_Base::_M_get_pointer(__functor)->__value) - (_GLIBCXX_ARGS); - } -}; - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -class function<_Res(_GLIBCXX_TEMPLATE_ARGS)> -#if _GLIBCXX_NUM_ARGS == 1 - : public unary_function<_T1, _Res>, private _Function_base -#elif _GLIBCXX_NUM_ARGS == 2 - : public binary_function<_T1, _T2, _Res>, private _Function_base -#else - : private _Function_base -#endif -{ - /** - * @if maint - * This class is used to implement the safe_bool idiom. - * @endif - */ - struct _Hidden_type - { - _Hidden_type* _M_bool; - }; - - /** - * @if maint - * This typedef is used to implement the safe_bool idiom. - * @endif - */ - typedef _Hidden_type* _Hidden_type::* _Safe_bool; - - typedef _Res _Signature_type(_GLIBCXX_TEMPLATE_ARGS); - - struct _Useless {}; - - public: - typedef _Res result_type; - - // [3.7.2.1] construct/copy/destroy - - /** - * @brief Default construct creates an empty function call wrapper. - * @post @c !(bool)*this - */ - function() : _Function_base() { } - - /** - * @brief Default construct creates an empty function call wrapper. - * @post @c !(bool)*this - */ - function(_M_clear_type*) : _Function_base() { } - - /** - * @brief %Function copy constructor. - * @param x A %function object with identical call signature. - * @pre @c (bool)*this == (bool)x - * - * The newly-created %function contains a copy of the target of @a - * x (if it has one). - */ - function(const function& __x); - - /** - * @brief Builds a %function that targets a copy of the incoming - * function object. - * @param f A %function object that is callable with parameters of - * type @c T1, @c T2, ..., @c TN and returns a value convertible - * to @c Res. - * - * The newly-created %function object will target a copy of @a - * f. If @a f is @c reference_wrapper<F>, then this function - * object will contain a reference to the function object @c - * f.get(). If @a f is a NULL function pointer or NULL - * pointer-to-member, the newly-created object will be empty. - * - * If @a f is a non-NULL function pointer or an object of type @c - * reference_wrapper<F>, this function will not throw. - */ - template<typename _Functor> - function(_Functor __f, - typename __gnu_cxx::__enable_if<!is_integral<_Functor>::value, _Useless>::__type = _Useless()); - - /** - * @brief %Function assignment operator. - * @param x A %function with identical call signature. - * @post @c (bool)*this == (bool)x - * @returns @c *this - * - * The target of @a x is copied to @c *this. If @a x has no - * target, then @c *this will be empty. - * - * If @a x targets a function pointer or a reference to a function - * object, then this operation will not throw an exception. - */ - function& operator=(const function& __x) - { - function(__x).swap(*this); - return *this; - } - - /** - * @brief %Function assignment to zero. - * @post @c !(bool)*this - * @returns @c *this - * - * The target of @a *this is deallocated, leaving it empty. - */ - function& operator=(_M_clear_type*) - { - if (_M_manager) { - _M_manager(_M_functor, _M_functor, __destroy_functor); - _M_manager = 0; - _M_invoker = 0; - } - return *this; - } - - /** - * @brief %Function assignment to a new target. - * @param f A %function object that is callable with parameters of - * type @c T1, @c T2, ..., @c TN and returns a value convertible - * to @c Res. - * @return @c *this - * - * This %function object wrapper will target a copy of @a - * f. If @a f is @c reference_wrapper<F>, then this function - * object will contain a reference to the function object @c - * f.get(). If @a f is a NULL function pointer or NULL - * pointer-to-member, @c this object will be empty. - * - * If @a f is a non-NULL function pointer or an object of type @c - * reference_wrapper<F>, this function will not throw. - */ - template<typename _Functor> - typename __gnu_cxx::__enable_if<!is_integral<_Functor>::value, function&>::__type - operator=(_Functor __f) - { - function(__f).swap(*this); - return *this; - } - - // [3.7.2.2] function modifiers - - /** - * @brief Swap the targets of two %function objects. - * @param f A %function with identical call signature. - * - * Swap the targets of @c this function object and @a f. This - * function will not throw an exception. - */ - void swap(function& __x) - { - _Any_data __old_functor = _M_functor; - _M_functor = __x._M_functor; - __x._M_functor = __old_functor; - _Manager_type __old_manager = _M_manager; - _M_manager = __x._M_manager; - __x._M_manager = __old_manager; - _Invoker_type __old_invoker = _M_invoker; - _M_invoker = __x._M_invoker; - __x._M_invoker = __old_invoker; - } - - // [3.7.2.3] function capacity - - /** - * @brief Determine if the %function wrapper has a target. - * - * @return @c true when this %function object contains a target, - * or @c false when it is empty. - * - * This function will not throw an exception. - */ - operator _Safe_bool() const - { - if (_M_empty()) - { - return 0; - } - else - { - return &_Hidden_type::_M_bool; - } - } - - // [3.7.2.4] function invocation - - /** - * @brief Invokes the function targeted by @c *this. - * @returns the result of the target. - * @throws bad_function_call when @c !(bool)*this - * - * The function call operator invokes the target function object - * stored by @c this. - */ - _Res operator()(_GLIBCXX_PARAMS) const; - - // [3.7.2.5] function target access - /** - * @brief Determine the type of the target of this function object - * wrapper. - * - * @returns the type identifier of the target function object, or - * @c typeid(void) if @c !(bool)*this. - * - * This function will not throw an exception. - */ - const type_info& target_type() const; - - /** - * @brief Access the stored target function object. - * - * @return Returns a pointer to the stored target function object, - * if @c typeid(Functor).equals(target_type()); otherwise, a NULL - * pointer. - * - * This function will not throw an exception. - */ - template<typename _Functor> _Functor* target(); - - /** - * @overload - */ - template<typename _Functor> const _Functor* target() const; - - private: - // [3.7.2.6] undefined operators - template<typename _Function> - void operator==(const function<_Function>&) const; - template<typename _Function> - void operator!=(const function<_Function>&) const; - - typedef _Res (*_Invoker_type)(const _Any_data& _GLIBCXX_COMMA - _GLIBCXX_PARAMS); - _Invoker_type _M_invoker; -}; - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - function<_Res(_GLIBCXX_TEMPLATE_ARGS)>::function(const function& __x) - : _Function_base() - { - if (__x) { - _M_invoker = __x._M_invoker; - _M_manager = __x._M_manager; - __x._M_manager(_M_functor, __x._M_functor, __clone_functor); - } - } - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -template<typename _Functor> - function<_Res(_GLIBCXX_TEMPLATE_ARGS)> - ::function(_Functor __f, - typename __gnu_cxx::__enable_if<!is_integral<_Functor>::value, _Useless>::__type) - : _Function_base() -{ - typedef _Function_handler<_Signature_type, _Functor> _My_handler; - if (_My_handler::_M_not_empty_function(__f)) { - _M_invoker = &_My_handler::_M_invoke; - _M_manager = &_My_handler::_M_manager; - _My_handler::_M_init_functor(_M_functor, __f); - } -} - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - _Res - function<_Res(_GLIBCXX_TEMPLATE_ARGS)>::operator()(_GLIBCXX_PARAMS) const - { - if (_M_empty()) - { -#if __EXCEPTIONS - throw bad_function_call(); -#else - std::abort(); -#endif - } - return _M_invoker(_M_functor _GLIBCXX_COMMA _GLIBCXX_ARGS); - } - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> - const type_info& - function<_Res(_GLIBCXX_TEMPLATE_ARGS)>::target_type() const - { - if (_M_manager) - { - _Any_data __typeinfo_result; - _M_manager(__typeinfo_result, _M_functor, __get_type_info); - return *__typeinfo_result._M_access<const type_info*>(); - } - else - { - return typeid(void); - } - } - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -template<typename _Functor> - _Functor* - function<_Res(_GLIBCXX_TEMPLATE_ARGS)>::target() - { - if (typeid(_Functor) == target_type() && _M_manager) - { - _Any_data __ptr; - if (_M_manager(__ptr, _M_functor, __get_functor_ptr) - && !is_const<_Functor>::value) - return 0; - else - return __ptr._M_access<_Functor*>(); - } - else - { - return 0; - } - } - -template<typename _Res _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS> -template<typename _Functor> - const _Functor* - function<_Res(_GLIBCXX_TEMPLATE_ARGS)>::target() const - { - if (typeid(_Functor) == target_type() && _M_manager) - { - _Any_data __ptr; - _M_manager(__ptr, _M_functor, __get_functor_ptr); - return __ptr._M_access<const _Functor*>(); - } - else - { - return 0; - } - } - -_GLIBCXX_END_NAMESPACE -} |