Index: gcc/libstdc++-v3/include/tr1_impl/functional |
diff --git a/gcc/libstdc++-v3/include/tr1_impl/functional b/gcc/libstdc++-v3/include/tr1_impl/functional |
deleted file mode 100644 |
index 7e6eaeb268526ebcac27507a64598576c19b36a4..0000000000000000000000000000000000000000 |
--- a/gcc/libstdc++-v3/include/tr1_impl/functional |
+++ /dev/null |
@@ -1,2130 +0,0 @@ |
-// TR1 functional header -*- C++ -*- |
- |
-// Copyright (C) 2007, 2008, 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 tr1_impl/functional |
- * This is an internal header file, included by other library headers. |
- * You should not attempt to use it directly. |
- */ |
- |
-namespace std |
-{ |
-_GLIBCXX_BEGIN_NAMESPACE_TR1 |
- |
- template<typename _MemberPointer> |
- class _Mem_fn; |
- |
- /** |
- * Actual implementation of _Has_result_type, which uses SFINAE to |
- * determine if the type _Tp has a publicly-accessible member type |
- * result_type. |
- */ |
- template<typename _Tp> |
- class _Has_result_type_helper : __sfinae_types |
- { |
- template<typename _Up> |
- struct _Wrap_type |
- { }; |
- |
- template<typename _Up> |
- static __one __test(_Wrap_type<typename _Up::result_type>*); |
- |
- template<typename _Up> |
- static __two __test(...); |
- |
- public: |
- static const bool value = sizeof(__test<_Tp>(0)) == 1; |
- }; |
- |
- template<typename _Tp> |
- struct _Has_result_type |
- : integral_constant<bool, |
- _Has_result_type_helper<typename remove_cv<_Tp>::type>::value> |
- { }; |
- |
- /** |
- * |
- */ |
- /// If we have found a result_type, extract it. |
- template<bool _Has_result_type, typename _Functor> |
- struct _Maybe_get_result_type |
- { }; |
- |
- template<typename _Functor> |
- struct _Maybe_get_result_type<true, _Functor> |
- { |
- typedef typename _Functor::result_type result_type; |
- }; |
- |
- /** |
- * Base class for any function object that has a weak result type, as |
- * defined in 3.3/3 of TR1. |
- */ |
- template<typename _Functor> |
- struct _Weak_result_type_impl |
- : _Maybe_get_result_type<_Has_result_type<_Functor>::value, _Functor> |
- { |
- }; |
- |
- /// Retrieve the result type for a function type. |
- template<typename _Res, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res(_ArgTypes...)> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve the result type for a function reference. |
- template<typename _Res, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res(&)(_ArgTypes...)> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve the result type for a function pointer. |
- template<typename _Res, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res(*)(_ArgTypes...)> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve result type for a member function pointer. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...)> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve result type for a const member function pointer. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...) const> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve result type for a volatile member function pointer. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...) volatile> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /// Retrieve result type for a const volatile member function pointer. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- struct _Weak_result_type_impl<_Res (_Class::*)(_ArgTypes...)const volatile> |
- { |
- typedef _Res result_type; |
- }; |
- |
- /** |
- * Strip top-level cv-qualifiers from the function object and let |
- * _Weak_result_type_impl perform the real work. |
- */ |
- template<typename _Functor> |
- struct _Weak_result_type |
- : _Weak_result_type_impl<typename remove_cv<_Functor>::type> |
- { |
- }; |
- |
- template<typename _Signature> |
- class result_of; |
- |
- /** |
- * Actual implementation of result_of. When _Has_result_type is |
- * true, gets its result from _Weak_result_type. Otherwise, uses |
- * the function object's member template result to extract the |
- * result type. |
- */ |
- template<bool _Has_result_type, typename _Signature> |
- struct _Result_of_impl; |
- |
- // Handle member data pointers using _Mem_fn's logic |
- template<typename _Res, typename _Class, typename _T1> |
- struct _Result_of_impl<false, _Res _Class::*(_T1)> |
- { |
- typedef typename _Mem_fn<_Res _Class::*> |
- ::template _Result_type<_T1>::type type; |
- }; |
- |
- /** |
- * Determine whether we can determine a result type from @c Functor |
- * alone. |
- */ |
- template<typename _Functor, typename... _ArgTypes> |
- class result_of<_Functor(_ArgTypes...)> |
- : public _Result_of_impl< |
- _Has_result_type<_Weak_result_type<_Functor> >::value, |
- _Functor(_ArgTypes...)> |
- { |
- }; |
- |
- /// We already know the result type for @c Functor; use it. |
- template<typename _Functor, typename... _ArgTypes> |
- struct _Result_of_impl<true, _Functor(_ArgTypes...)> |
- { |
- typedef typename _Weak_result_type<_Functor>::result_type type; |
- }; |
- |
- /** |
- * We need to compute the result type for this invocation the hard |
- * way. |
- */ |
- template<typename _Functor, typename... _ArgTypes> |
- struct _Result_of_impl<false, _Functor(_ArgTypes...)> |
- { |
- typedef typename _Functor |
- ::template result<_Functor(_ArgTypes...)>::type type; |
- }; |
- |
- /** |
- * It is unsafe to access ::result when there are zero arguments, so we |
- * return @c void instead. |
- */ |
- template<typename _Functor> |
- struct _Result_of_impl<false, _Functor()> |
- { |
- typedef void type; |
- }; |
- |
- /// Determines if the type _Tp derives from unary_function. |
- template<typename _Tp> |
- struct _Derives_from_unary_function : __sfinae_types |
- { |
- private: |
- template<typename _T1, typename _Res> |
- static __one __test(const volatile unary_function<_T1, _Res>*); |
- |
- // It's tempting to change "..." to const volatile void*, but |
- // that fails when _Tp is a function type. |
- static __two __test(...); |
- |
- public: |
- static const bool value = sizeof(__test((_Tp*)0)) == 1; |
- }; |
- |
- /// Determines if the type _Tp derives from binary_function. |
- template<typename _Tp> |
- struct _Derives_from_binary_function : __sfinae_types |
- { |
- private: |
- template<typename _T1, typename _T2, typename _Res> |
- static __one __test(const volatile binary_function<_T1, _T2, _Res>*); |
- |
- // It's tempting to change "..." to const volatile void*, but |
- // that fails when _Tp is a function type. |
- static __two __test(...); |
- |
- public: |
- static const bool value = sizeof(__test((_Tp*)0)) == 1; |
- }; |
- |
- /// Turns a function type into a function pointer type |
- template<typename _Tp, bool _IsFunctionType = is_function<_Tp>::value> |
- struct _Function_to_function_pointer |
- { |
- typedef _Tp type; |
- }; |
- |
- template<typename _Tp> |
- struct _Function_to_function_pointer<_Tp, true> |
- { |
- typedef _Tp* type; |
- }; |
- |
- /** |
- * Invoke a function object, which may be either a member pointer or a |
- * function object. The first parameter will tell which. |
- */ |
- template<typename _Functor, typename... _Args> |
- 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(_Args...)>::type |
- >::__type |
- __invoke(_Functor& __f, _Args&... __args) |
- { |
- return __f(__args...); |
- } |
- |
- template<typename _Functor, typename... _Args> |
- 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(_Args...)>::type |
- >::__type |
- __invoke(_Functor& __f, _Args&... __args) |
- { |
- return mem_fn(__f)(__args...); |
- } |
- |
- // To pick up function references (that will become function pointers) |
- template<typename _Functor, typename... _Args> |
- inline |
- typename __gnu_cxx::__enable_if< |
- (is_pointer<_Functor>::value |
- && is_function<typename remove_pointer<_Functor>::type>::value), |
- typename result_of<_Functor(_Args...)>::type |
- >::__type |
- __invoke(_Functor __f, _Args&... __args) |
- { |
- return __f(__args...); |
- } |
- |
- /** |
- * Knowing which of unary_function and binary_function _Tp derives |
- * from, derives from the same and ensures that reference_wrapper |
- * will have a weak result type. See cases below. |
- */ |
- template<bool _Unary, bool _Binary, typename _Tp> |
- struct _Reference_wrapper_base_impl; |
- |
- // Not a unary_function or binary_function, so try a weak result type. |
- template<typename _Tp> |
- struct _Reference_wrapper_base_impl<false, false, _Tp> |
- : _Weak_result_type<_Tp> |
- { }; |
- |
- // unary_function but not binary_function |
- template<typename _Tp> |
- struct _Reference_wrapper_base_impl<true, false, _Tp> |
- : unary_function<typename _Tp::argument_type, |
- typename _Tp::result_type> |
- { }; |
- |
- // binary_function but not unary_function |
- template<typename _Tp> |
- struct _Reference_wrapper_base_impl<false, true, _Tp> |
- : binary_function<typename _Tp::first_argument_type, |
- typename _Tp::second_argument_type, |
- typename _Tp::result_type> |
- { }; |
- |
- // Both unary_function and binary_function. Import result_type to |
- // avoid conflicts. |
- template<typename _Tp> |
- struct _Reference_wrapper_base_impl<true, true, _Tp> |
- : unary_function<typename _Tp::argument_type, |
- typename _Tp::result_type>, |
- binary_function<typename _Tp::first_argument_type, |
- typename _Tp::second_argument_type, |
- typename _Tp::result_type> |
- { |
- typedef typename _Tp::result_type result_type; |
- }; |
- |
- /** |
- * Derives from unary_function or binary_function when it |
- * can. Specializations handle all of the easy cases. The primary |
- * template determines what to do with a class type, which may |
- * derive from both unary_function and binary_function. |
- */ |
- template<typename _Tp> |
- struct _Reference_wrapper_base |
- : _Reference_wrapper_base_impl< |
- _Derives_from_unary_function<_Tp>::value, |
- _Derives_from_binary_function<_Tp>::value, |
- _Tp> |
- { }; |
- |
- // - a function type (unary) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res(_T1)> |
- : unary_function<_T1, _Res> |
- { }; |
- |
- // - a function type (binary) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res(_T1, _T2)> |
- : binary_function<_T1, _T2, _Res> |
- { }; |
- |
- // - a function pointer type (unary) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res(*)(_T1)> |
- : unary_function<_T1, _Res> |
- { }; |
- |
- // - a function pointer type (binary) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res(*)(_T1, _T2)> |
- : binary_function<_T1, _T2, _Res> |
- { }; |
- |
- // - a pointer to member function type (unary, no qualifiers) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res (_T1::*)()> |
- : unary_function<_T1*, _Res> |
- { }; |
- |
- // - a pointer to member function type (binary, no qualifiers) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res (_T1::*)(_T2)> |
- : binary_function<_T1*, _T2, _Res> |
- { }; |
- |
- // - a pointer to member function type (unary, const) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res (_T1::*)() const> |
- : unary_function<const _T1*, _Res> |
- { }; |
- |
- // - a pointer to member function type (binary, const) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res (_T1::*)(_T2) const> |
- : binary_function<const _T1*, _T2, _Res> |
- { }; |
- |
- // - a pointer to member function type (unary, volatile) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res (_T1::*)() volatile> |
- : unary_function<volatile _T1*, _Res> |
- { }; |
- |
- // - a pointer to member function type (binary, volatile) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res (_T1::*)(_T2) volatile> |
- : binary_function<volatile _T1*, _T2, _Res> |
- { }; |
- |
- // - a pointer to member function type (unary, const volatile) |
- template<typename _Res, typename _T1> |
- struct _Reference_wrapper_base<_Res (_T1::*)() const volatile> |
- : unary_function<const volatile _T1*, _Res> |
- { }; |
- |
- // - a pointer to member function type (binary, const volatile) |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Reference_wrapper_base<_Res (_T1::*)(_T2) const volatile> |
- : binary_function<const volatile _T1*, _T2, _Res> |
- { }; |
- |
- /// reference_wrapper |
- template<typename _Tp> |
- class reference_wrapper |
- : public _Reference_wrapper_base<typename remove_cv<_Tp>::type> |
- { |
- // If _Tp is a function type, we can't form result_of<_Tp(...)>, |
- // so turn it into a function pointer type. |
- typedef typename _Function_to_function_pointer<_Tp>::type |
- _M_func_type; |
- |
- _Tp* _M_data; |
- public: |
- typedef _Tp type; |
- |
- explicit |
- reference_wrapper(_Tp& __indata): _M_data(&__indata) |
- { } |
- |
- reference_wrapper(const reference_wrapper<_Tp>& __inref): |
- _M_data(__inref._M_data) |
- { } |
- |
- reference_wrapper& |
- operator=(const reference_wrapper<_Tp>& __inref) |
- { |
- _M_data = __inref._M_data; |
- return *this; |
- } |
- |
- operator _Tp&() const |
- { return this->get(); } |
- |
- _Tp& |
- get() const |
- { return *_M_data; } |
- |
- template<typename... _Args> |
- typename result_of<_M_func_type(_Args...)>::type |
- operator()(_Args&... __args) const |
- { |
- return __invoke(get(), __args...); |
- } |
- }; |
- |
- |
- // Denotes a reference should be taken to a variable. |
- template<typename _Tp> |
- inline reference_wrapper<_Tp> |
- ref(_Tp& __t) |
- { return reference_wrapper<_Tp>(__t); } |
- |
- // Denotes a const reference should be taken to a variable. |
- template<typename _Tp> |
- inline reference_wrapper<const _Tp> |
- cref(const _Tp& __t) |
- { return reference_wrapper<const _Tp>(__t); } |
- |
- template<typename _Tp> |
- inline reference_wrapper<_Tp> |
- ref(reference_wrapper<_Tp> __t) |
- { return ref(__t.get()); } |
- |
- template<typename _Tp> |
- inline reference_wrapper<const _Tp> |
- cref(reference_wrapper<_Tp> __t) |
- { return cref(__t.get()); } |
- |
- template<typename _Tp, bool> |
- struct _Mem_fn_const_or_non |
- { |
- typedef const _Tp& type; |
- }; |
- |
- template<typename _Tp> |
- struct _Mem_fn_const_or_non<_Tp, false> |
- { |
- typedef _Tp& type; |
- }; |
- |
- /** |
- * Derives from @c unary_function or @c binary_function, or perhaps |
- * nothing, depending on the number of arguments provided. The |
- * primary template is the basis case, which derives nothing. |
- */ |
- template<typename _Res, typename... _ArgTypes> |
- struct _Maybe_unary_or_binary_function { }; |
- |
- /// Derives from @c unary_function, as appropriate. |
- template<typename _Res, typename _T1> |
- struct _Maybe_unary_or_binary_function<_Res, _T1> |
- : std::unary_function<_T1, _Res> { }; |
- |
- /// Derives from @c binary_function, as appropriate. |
- template<typename _Res, typename _T1, typename _T2> |
- struct _Maybe_unary_or_binary_function<_Res, _T1, _T2> |
- : std::binary_function<_T1, _T2, _Res> { }; |
- |
- /// Implementation of @c mem_fn for member function pointers. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- class _Mem_fn<_Res (_Class::*)(_ArgTypes...)> |
- : public _Maybe_unary_or_binary_function<_Res, _Class*, _ArgTypes...> |
- { |
- typedef _Res (_Class::*_Functor)(_ArgTypes...); |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __object, const volatile _Class *, |
- _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __ptr, const volatile void *, _ArgTypes... __args) const |
- { return ((*__ptr).*__pmf)(__args...); } |
- |
- public: |
- typedef _Res result_type; |
- |
- explicit _Mem_fn(_Functor __pmf) : __pmf(__pmf) { } |
- |
- // Handle objects |
- _Res |
- operator()(_Class& __object, _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- // Handle pointers |
- _Res |
- operator()(_Class* __object, _ArgTypes... __args) const |
- { return (__object->*__pmf)(__args...); } |
- |
- // Handle smart pointers, references and pointers to derived |
- template<typename _Tp> |
- _Res |
- operator()(_Tp& __object, _ArgTypes... __args) const |
- { return _M_call(__object, &__object, __args...); } |
- |
- private: |
- _Functor __pmf; |
- }; |
- |
- /// Implementation of @c mem_fn for const member function pointers. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- class _Mem_fn<_Res (_Class::*)(_ArgTypes...) const> |
- : public _Maybe_unary_or_binary_function<_Res, const _Class*, |
- _ArgTypes...> |
- { |
- typedef _Res (_Class::*_Functor)(_ArgTypes...) const; |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __object, const volatile _Class *, |
- _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __ptr, const volatile void *, _ArgTypes... __args) const |
- { return ((*__ptr).*__pmf)(__args...); } |
- |
- public: |
- typedef _Res result_type; |
- |
- explicit _Mem_fn(_Functor __pmf) : __pmf(__pmf) { } |
- |
- // Handle objects |
- _Res |
- operator()(const _Class& __object, _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- // Handle pointers |
- _Res |
- operator()(const _Class* __object, _ArgTypes... __args) const |
- { return (__object->*__pmf)(__args...); } |
- |
- // Handle smart pointers, references and pointers to derived |
- template<typename _Tp> |
- _Res operator()(_Tp& __object, _ArgTypes... __args) const |
- { return _M_call(__object, &__object, __args...); } |
- |
- private: |
- _Functor __pmf; |
- }; |
- |
- /// Implementation of @c mem_fn for volatile member function pointers. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- class _Mem_fn<_Res (_Class::*)(_ArgTypes...) volatile> |
- : public _Maybe_unary_or_binary_function<_Res, volatile _Class*, |
- _ArgTypes...> |
- { |
- typedef _Res (_Class::*_Functor)(_ArgTypes...) volatile; |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __object, const volatile _Class *, |
- _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __ptr, const volatile void *, _ArgTypes... __args) const |
- { return ((*__ptr).*__pmf)(__args...); } |
- |
- public: |
- typedef _Res result_type; |
- |
- explicit _Mem_fn(_Functor __pmf) : __pmf(__pmf) { } |
- |
- // Handle objects |
- _Res |
- operator()(volatile _Class& __object, _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- // Handle pointers |
- _Res |
- operator()(volatile _Class* __object, _ArgTypes... __args) const |
- { return (__object->*__pmf)(__args...); } |
- |
- // Handle smart pointers, references and pointers to derived |
- template<typename _Tp> |
- _Res |
- operator()(_Tp& __object, _ArgTypes... __args) const |
- { return _M_call(__object, &__object, __args...); } |
- |
- private: |
- _Functor __pmf; |
- }; |
- |
- /// Implementation of @c mem_fn for const volatile member function pointers. |
- template<typename _Res, typename _Class, typename... _ArgTypes> |
- class _Mem_fn<_Res (_Class::*)(_ArgTypes...) const volatile> |
- : public _Maybe_unary_or_binary_function<_Res, const volatile _Class*, |
- _ArgTypes...> |
- { |
- typedef _Res (_Class::*_Functor)(_ArgTypes...) const volatile; |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __object, const volatile _Class *, |
- _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- template<typename _Tp> |
- _Res |
- _M_call(_Tp& __ptr, const volatile void *, _ArgTypes... __args) const |
- { return ((*__ptr).*__pmf)(__args...); } |
- |
- public: |
- typedef _Res result_type; |
- |
- explicit _Mem_fn(_Functor __pmf) : __pmf(__pmf) { } |
- |
- // Handle objects |
- _Res |
- operator()(const volatile _Class& __object, _ArgTypes... __args) const |
- { return (__object.*__pmf)(__args...); } |
- |
- // Handle pointers |
- _Res |
- operator()(const volatile _Class* __object, _ArgTypes... __args) const |
- { return (__object->*__pmf)(__args...); } |
- |
- // Handle smart pointers, references and pointers to derived |
- template<typename _Tp> |
- _Res operator()(_Tp& __object, _ArgTypes... __args) const |
- { return _M_call(__object, &__object, __args...); } |
- |
- private: |
- _Functor __pmf; |
- }; |
- |
- |
- template<typename _Res, typename _Class> |
- class _Mem_fn<_Res _Class::*> |
- { |
- // This bit of genius is due to Peter Dimov, improved slightly by |
- // Douglas Gregor. |
- template<typename _Tp> |
- _Res& |
- _M_call(_Tp& __object, _Class *) const |
- { return __object.*__pm; } |
- |
- template<typename _Tp, typename _Up> |
- _Res& |
- _M_call(_Tp& __object, _Up * const *) const |
- { return (*__object).*__pm; } |
- |
- template<typename _Tp, typename _Up> |
- const _Res& |
- _M_call(_Tp& __object, const _Up * const *) const |
- { return (*__object).*__pm; } |
- |
- template<typename _Tp> |
- const _Res& |
- _M_call(_Tp& __object, const _Class *) const |
- { return __object.*__pm; } |
- |
- template<typename _Tp> |
- const _Res& |
- _M_call(_Tp& __ptr, const volatile void*) const |
- { return (*__ptr).*__pm; } |
- |
- template<typename _Tp> static _Tp& __get_ref(); |
- |
- template<typename _Tp> |
- static __sfinae_types::__one __check_const(_Tp&, _Class*); |
- template<typename _Tp, typename _Up> |
- static __sfinae_types::__one __check_const(_Tp&, _Up * const *); |
- template<typename _Tp, typename _Up> |
- static __sfinae_types::__two __check_const(_Tp&, const _Up * const *); |
- template<typename _Tp> |
- static __sfinae_types::__two __check_const(_Tp&, const _Class*); |
- template<typename _Tp> |
- static __sfinae_types::__two __check_const(_Tp&, const volatile void*); |
- |
- public: |
- template<typename _Tp> |
- struct _Result_type |
- : _Mem_fn_const_or_non<_Res, |
- (sizeof(__sfinae_types::__two) |
- == sizeof(__check_const<_Tp>(__get_ref<_Tp>(), (_Tp*)0)))> |
- { }; |
- |
- template<typename _Signature> |
- struct result; |
- |
- template<typename _CVMem, typename _Tp> |
- struct result<_CVMem(_Tp)> |
- : public _Result_type<_Tp> { }; |
- |
- template<typename _CVMem, typename _Tp> |
- struct result<_CVMem(_Tp&)> |
- : public _Result_type<_Tp> { }; |
- |
- explicit |
- _Mem_fn(_Res _Class::*__pm) : __pm(__pm) { } |
- |
- // Handle objects |
- _Res& |
- operator()(_Class& __object) const |
- { return __object.*__pm; } |
- |
- const _Res& |
- operator()(const _Class& __object) const |
- { return __object.*__pm; } |
- |
- // Handle pointers |
- _Res& |
- operator()(_Class* __object) const |
- { return __object->*__pm; } |
- |
- const _Res& |
- operator()(const _Class* __object) const |
- { return __object->*__pm; } |
- |
- // Handle smart pointers and derived |
- template<typename _Tp> |
- typename _Result_type<_Tp>::type |
- operator()(_Tp& __unknown) const |
- { return _M_call(__unknown, &__unknown); } |
- |
- private: |
- _Res _Class::*__pm; |
- }; |
- |
- /** |
- * @brief Returns a function object that forwards to the member |
- * pointer @a pm. |
- */ |
- template<typename _Tp, typename _Class> |
- inline _Mem_fn<_Tp _Class::*> |
- mem_fn(_Tp _Class::* __pm) |
- { |
- return _Mem_fn<_Tp _Class::*>(__pm); |
- } |
- |
- /** |
- * @brief Determines if the given type _Tp is a function object |
- * should be treated as a subexpression when evaluating calls to |
- * function objects returned by bind(). [TR1 3.6.1] |
- */ |
- template<typename _Tp> |
- struct is_bind_expression |
- { static const bool value = false; }; |
- |
- template<typename _Tp> |
- const bool is_bind_expression<_Tp>::value; |
- |
- /** |
- * @brief Determines if the given type _Tp is a placeholder in a |
- * bind() expression and, if so, which placeholder it is. [TR1 3.6.2] |
- */ |
- template<typename _Tp> |
- struct is_placeholder |
- { static const int value = 0; }; |
- |
- template<typename _Tp> |
- const int is_placeholder<_Tp>::value; |
- |
- /// The type of placeholder objects defined by libstdc++. |
- template<int _Num> struct _Placeholder { }; |
- |
- /** @namespace std::placeholders |
- * @brief ISO C++ 0x entities sub namespace for functional. |
- * |
- * Define a large number of placeholders. There is no way to |
- * simplify this with variadic templates, because we're introducing |
- * unique names for each. |
- */ |
- namespace placeholders |
- { |
- namespace |
- { |
- _Placeholder<1> _1; |
- _Placeholder<2> _2; |
- _Placeholder<3> _3; |
- _Placeholder<4> _4; |
- _Placeholder<5> _5; |
- _Placeholder<6> _6; |
- _Placeholder<7> _7; |
- _Placeholder<8> _8; |
- _Placeholder<9> _9; |
- _Placeholder<10> _10; |
- _Placeholder<11> _11; |
- _Placeholder<12> _12; |
- _Placeholder<13> _13; |
- _Placeholder<14> _14; |
- _Placeholder<15> _15; |
- _Placeholder<16> _16; |
- _Placeholder<17> _17; |
- _Placeholder<18> _18; |
- _Placeholder<19> _19; |
- _Placeholder<20> _20; |
- _Placeholder<21> _21; |
- _Placeholder<22> _22; |
- _Placeholder<23> _23; |
- _Placeholder<24> _24; |
- _Placeholder<25> _25; |
- _Placeholder<26> _26; |
- _Placeholder<27> _27; |
- _Placeholder<28> _28; |
- _Placeholder<29> _29; |
- } |
- } |
- |
- /** |
- * Partial specialization of is_placeholder that provides the placeholder |
- * number for the placeholder objects defined by libstdc++. |
- */ |
- template<int _Num> |
- struct is_placeholder<_Placeholder<_Num> > |
- { static const int value = _Num; }; |
- |
- template<int _Num> |
- const int is_placeholder<_Placeholder<_Num> >::value; |
- |
- /** |
- * Stores a tuple of indices. Used by bind() to extract the elements |
- * in a tuple. |
- */ |
- template<int... _Indexes> |
- struct _Index_tuple { }; |
- |
- /// Builds an _Index_tuple<0, 1, 2, ..., _Num-1>. |
- template<std::size_t _Num, typename _Tuple = _Index_tuple<> > |
- struct _Build_index_tuple; |
- |
- template<std::size_t _Num, int... _Indexes> |
- struct _Build_index_tuple<_Num, _Index_tuple<_Indexes...> > |
- : _Build_index_tuple<_Num - 1, |
- _Index_tuple<_Indexes..., sizeof...(_Indexes)> > |
- { |
- }; |
- |
- template<int... _Indexes> |
- struct _Build_index_tuple<0, _Index_tuple<_Indexes...> > |
- { |
- typedef _Index_tuple<_Indexes...> __type; |
- }; |
- |
- /** |
- * Used by _Safe_tuple_element to indicate that there is no tuple |
- * element at this position. |
- */ |
- struct _No_tuple_element; |
- |
- /** |
- * Implementation helper for _Safe_tuple_element. This primary |
- * template handles the case where it is safe to use @c |
- * tuple_element. |
- */ |
- template<int __i, typename _Tuple, bool _IsSafe> |
- struct _Safe_tuple_element_impl |
- : tuple_element<__i, _Tuple> { }; |
- |
- /** |
- * Implementation helper for _Safe_tuple_element. This partial |
- * specialization handles the case where it is not safe to use @c |
- * tuple_element. We just return @c _No_tuple_element. |
- */ |
- template<int __i, typename _Tuple> |
- struct _Safe_tuple_element_impl<__i, _Tuple, false> |
- { |
- typedef _No_tuple_element type; |
- }; |
- |
- /** |
- * Like tuple_element, but returns @c _No_tuple_element when |
- * tuple_element would return an error. |
- */ |
- template<int __i, typename _Tuple> |
- struct _Safe_tuple_element |
- : _Safe_tuple_element_impl<__i, _Tuple, |
- (__i >= 0 && __i < tuple_size<_Tuple>::value)> |
- { |
- }; |
- |
- /** |
- * Maps an argument to bind() into an actual argument to the bound |
- * function object [TR1 3.6.3/5]. Only the first parameter should |
- * be specified: the rest are used to determine among the various |
- * implementations. Note that, although this class is a function |
- * object, it isn't entirely normal because it takes only two |
- * parameters regardless of the number of parameters passed to the |
- * bind expression. The first parameter is the bound argument and |
- * the second parameter is a tuple containing references to the |
- * rest of the arguments. |
- */ |
- template<typename _Arg, |
- bool _IsBindExp = is_bind_expression<_Arg>::value, |
- bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)> |
- class _Mu; |
- |
- /** |
- * If the argument is reference_wrapper<_Tp>, returns the |
- * underlying reference. [TR1 3.6.3/5 bullet 1] |
- */ |
- template<typename _Tp> |
- class _Mu<reference_wrapper<_Tp>, false, false> |
- { |
- public: |
- typedef _Tp& result_type; |
- |
- /* Note: This won't actually work for const volatile |
- * reference_wrappers, because reference_wrapper::get() is const |
- * but not volatile-qualified. This might be a defect in the TR. |
- */ |
- template<typename _CVRef, typename _Tuple> |
- result_type |
- operator()(_CVRef& __arg, const _Tuple&) const volatile |
- { return __arg.get(); } |
- }; |
- |
- /** |
- * If the argument is a bind expression, we invoke the underlying |
- * function object with the same cv-qualifiers as we are given and |
- * pass along all of our arguments (unwrapped). [TR1 3.6.3/5 bullet 2] |
- */ |
- template<typename _Arg> |
- class _Mu<_Arg, true, false> |
- { |
- public: |
- template<typename _Signature> class result; |
- |
- // Determine the result type when we pass the arguments along. This |
- // involves passing along the cv-qualifiers placed on _Mu and |
- // unwrapping the argument bundle. |
- template<typename _CVMu, typename _CVArg, typename... _Args> |
- class result<_CVMu(_CVArg, tuple<_Args...>)> |
- : public result_of<_CVArg(_Args...)> { }; |
- |
- template<typename _CVArg, typename... _Args> |
- typename result_of<_CVArg(_Args...)>::type |
- operator()(_CVArg& __arg, |
- const tuple<_Args...>& __tuple) const volatile |
- { |
- // Construct an index tuple and forward to __call |
- typedef typename _Build_index_tuple<sizeof...(_Args)>::__type |
- _Indexes; |
- return this->__call(__arg, __tuple, _Indexes()); |
- } |
- |
- private: |
- // Invokes the underlying function object __arg by unpacking all |
- // of the arguments in the tuple. |
- template<typename _CVArg, typename... _Args, int... _Indexes> |
- typename result_of<_CVArg(_Args...)>::type |
- __call(_CVArg& __arg, const tuple<_Args...>& __tuple, |
- const _Index_tuple<_Indexes...>&) const volatile |
- { |
- return __arg(_GLIBCXX_TR1 get<_Indexes>(__tuple)...); |
- } |
- }; |
- |
- /** |
- * If the argument is a placeholder for the Nth argument, returns |
- * a reference to the Nth argument to the bind function object. |
- * [TR1 3.6.3/5 bullet 3] |
- */ |
- template<typename _Arg> |
- class _Mu<_Arg, false, true> |
- { |
- public: |
- template<typename _Signature> class result; |
- |
- template<typename _CVMu, typename _CVArg, typename _Tuple> |
- class result<_CVMu(_CVArg, _Tuple)> |
- { |
- // Add a reference, if it hasn't already been done for us. |
- // This allows us to be a little bit sloppy in constructing |
- // the tuple that we pass to result_of<...>. |
- typedef typename _Safe_tuple_element<(is_placeholder<_Arg>::value |
- - 1), _Tuple>::type |
- __base_type; |
- |
- public: |
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X |
- typedef typename add_lvalue_reference<__base_type>::type type; |
-#else |
- typedef typename add_reference<__base_type>::type type; |
-#endif |
- }; |
- |
- template<typename _Tuple> |
- typename result<_Mu(_Arg, _Tuple)>::type |
- operator()(const volatile _Arg&, const _Tuple& __tuple) const volatile |
- { |
- return ::std::_GLIBCXX_TR1 get<(is_placeholder<_Arg>::value |
- - 1)>(__tuple); |
- } |
- }; |
- |
- /** |
- * If the argument is just a value, returns a reference to that |
- * value. The cv-qualifiers on the reference are the same as the |
- * cv-qualifiers on the _Mu object. [TR1 3.6.3/5 bullet 4] |
- */ |
- template<typename _Arg> |
- class _Mu<_Arg, false, false> |
- { |
- public: |
- template<typename _Signature> struct result; |
- |
- template<typename _CVMu, typename _CVArg, typename _Tuple> |
- struct result<_CVMu(_CVArg, _Tuple)> |
- { |
-#ifdef _GLIBCXX_INCLUDE_AS_CXX0X |
- typedef typename add_lvalue_reference<_CVArg>::type type; |
-#else |
- typedef typename add_reference<_CVArg>::type type; |
-#endif |
- }; |
- |
- // Pick up the cv-qualifiers of the argument |
- template<typename _CVArg, typename _Tuple> |
- _CVArg& |
- operator()(_CVArg& __arg, const _Tuple&) const volatile |
- { return __arg; } |
- }; |
- |
- /** |
- * Maps member pointers into instances of _Mem_fn but leaves all |
- * other function objects untouched. Used by tr1::bind(). The |
- * primary template handles the non--member-pointer case. |
- */ |
- template<typename _Tp> |
- struct _Maybe_wrap_member_pointer |
- { |
- typedef _Tp type; |
- |
- static const _Tp& |
- __do_wrap(const _Tp& __x) |
- { return __x; } |
- }; |
- |
- /** |
- * Maps member pointers into instances of _Mem_fn but leaves all |
- * other function objects untouched. Used by tr1::bind(). This |
- * partial specialization handles the member pointer case. |
- */ |
- template<typename _Tp, typename _Class> |
- struct _Maybe_wrap_member_pointer<_Tp _Class::*> |
- { |
- typedef _Mem_fn<_Tp _Class::*> type; |
- |
- static type |
- __do_wrap(_Tp _Class::* __pm) |
- { return type(__pm); } |
- }; |
- |
- /// Type of the function object returned from bind(). |
- template<typename _Signature> |
- struct _Bind; |
- |
- template<typename _Functor, typename... _Bound_args> |
- class _Bind<_Functor(_Bound_args...)> |
- : public _Weak_result_type<_Functor> |
- { |
- typedef _Bind __self_type; |
- typedef typename _Build_index_tuple<sizeof...(_Bound_args)>::__type |
- _Bound_indexes; |
- |
- _Functor _M_f; |
- tuple<_Bound_args...> _M_bound_args; |
- |
- // Call unqualified |
- template<typename... _Args, int... _Indexes> |
- typename result_of< |
- _Functor(typename result_of<_Mu<_Bound_args> |
- (_Bound_args, tuple<_Args...>)>::type...) |
- >::type |
- __call(const tuple<_Args...>& __args, _Index_tuple<_Indexes...>) |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as const |
- template<typename... _Args, int... _Indexes> |
- typename result_of< |
- const _Functor(typename result_of<_Mu<_Bound_args> |
- (const _Bound_args, tuple<_Args...>) |
- >::type...)>::type |
- __call(const tuple<_Args...>& __args, _Index_tuple<_Indexes...>) const |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as volatile |
- template<typename... _Args, int... _Indexes> |
- typename result_of< |
- volatile _Functor(typename result_of<_Mu<_Bound_args> |
- (volatile _Bound_args, tuple<_Args...>) |
- >::type...)>::type |
- __call(const tuple<_Args...>& __args, |
- _Index_tuple<_Indexes...>) volatile |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as const volatile |
- template<typename... _Args, int... _Indexes> |
- typename result_of< |
- const volatile _Functor(typename result_of<_Mu<_Bound_args> |
- (const volatile _Bound_args, |
- tuple<_Args...>) |
- >::type...)>::type |
- __call(const tuple<_Args...>& __args, |
- _Index_tuple<_Indexes...>) const volatile |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- public: |
- explicit _Bind(_Functor __f, _Bound_args... __bound_args) |
- : _M_f(__f), _M_bound_args(__bound_args...) { } |
- |
- // Call unqualified |
- template<typename... _Args> |
- typename result_of< |
- _Functor(typename result_of<_Mu<_Bound_args> |
- (_Bound_args, tuple<_Args...>)>::type...) |
- >::type |
- operator()(_Args&... __args) |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- // Call as const |
- template<typename... _Args> |
- typename result_of< |
- const _Functor(typename result_of<_Mu<_Bound_args> |
- (const _Bound_args, tuple<_Args...>)>::type...) |
- >::type |
- operator()(_Args&... __args) const |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- |
- // Call as volatile |
- template<typename... _Args> |
- typename result_of< |
- volatile _Functor(typename result_of<_Mu<_Bound_args> |
- (volatile _Bound_args, tuple<_Args...>)>::type...) |
- >::type |
- operator()(_Args&... __args) volatile |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- |
- // Call as const volatile |
- template<typename... _Args> |
- typename result_of< |
- const volatile _Functor(typename result_of<_Mu<_Bound_args> |
- (const volatile _Bound_args, |
- tuple<_Args...>)>::type...) |
- >::type |
- operator()(_Args&... __args) const volatile |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- }; |
- |
- /// Type of the function object returned from bind<R>(). |
- template<typename _Result, typename _Signature> |
- struct _Bind_result; |
- |
- template<typename _Result, typename _Functor, typename... _Bound_args> |
- class _Bind_result<_Result, _Functor(_Bound_args...)> |
- { |
- typedef _Bind_result __self_type; |
- typedef typename _Build_index_tuple<sizeof...(_Bound_args)>::__type |
- _Bound_indexes; |
- |
- _Functor _M_f; |
- tuple<_Bound_args...> _M_bound_args; |
- |
- // Call unqualified |
- template<typename... _Args, int... _Indexes> |
- _Result |
- __call(const tuple<_Args...>& __args, _Index_tuple<_Indexes...>) |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as const |
- template<typename... _Args, int... _Indexes> |
- _Result |
- __call(const tuple<_Args...>& __args, _Index_tuple<_Indexes...>) const |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as volatile |
- template<typename... _Args, int... _Indexes> |
- _Result |
- __call(const tuple<_Args...>& __args, |
- _Index_tuple<_Indexes...>) volatile |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- // Call as const volatile |
- template<typename... _Args, int... _Indexes> |
- _Result |
- __call(const tuple<_Args...>& __args, |
- _Index_tuple<_Indexes...>) const volatile |
- { |
- return _M_f(_Mu<_Bound_args>() |
- (_GLIBCXX_TR1 get<_Indexes>(_M_bound_args), __args)...); |
- } |
- |
- public: |
- typedef _Result result_type; |
- |
- explicit |
- _Bind_result(_Functor __f, _Bound_args... __bound_args) |
- : _M_f(__f), _M_bound_args(__bound_args...) { } |
- |
- // Call unqualified |
- template<typename... _Args> |
- result_type |
- operator()(_Args&... __args) |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- // Call as const |
- template<typename... _Args> |
- result_type |
- operator()(_Args&... __args) const |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- // Call as volatile |
- template<typename... _Args> |
- result_type |
- operator()(_Args&... __args) volatile |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- |
- // Call as const volatile |
- template<typename... _Args> |
- result_type |
- operator()(_Args&... __args) const volatile |
- { |
- return this->__call(_GLIBCXX_TR1 tie(__args...), _Bound_indexes()); |
- } |
- }; |
- |
- /// Class template _Bind is always a bind expression. |
- template<typename _Signature> |
- struct is_bind_expression<_Bind<_Signature> > |
- { static const bool value = true; }; |
- |
- template<typename _Signature> |
- const bool is_bind_expression<_Bind<_Signature> >::value; |
- |
- /// Class template _Bind_result is always a bind expression. |
- template<typename _Result, typename _Signature> |
- struct is_bind_expression<_Bind_result<_Result, _Signature> > |
- { static const bool value = true; }; |
- |
- template<typename _Result, typename _Signature> |
- const bool is_bind_expression<_Bind_result<_Result, _Signature> >::value; |
- |
- /// bind |
- template<typename _Functor, typename... _ArgTypes> |
- inline |
- _Bind<typename _Maybe_wrap_member_pointer<_Functor>::type(_ArgTypes...)> |
- bind(_Functor __f, _ArgTypes... __args) |
- { |
- typedef _Maybe_wrap_member_pointer<_Functor> __maybe_type; |
- typedef typename __maybe_type::type __functor_type; |
- typedef _Bind<__functor_type(_ArgTypes...)> __result_type; |
- return __result_type(__maybe_type::__do_wrap(__f), __args...); |
- } |
- |
- template<typename _Result, typename _Functor, typename... _ArgTypes> |
- inline |
- _Bind_result<_Result, |
- typename _Maybe_wrap_member_pointer<_Functor>::type |
- (_ArgTypes...)> |
- bind(_Functor __f, _ArgTypes... __args) |
- { |
- typedef _Maybe_wrap_member_pointer<_Functor> __maybe_type; |
- typedef typename __maybe_type::type __functor_type; |
- typedef _Bind_result<_Result, __functor_type(_ArgTypes...)> |
- __result_type; |
- return __result_type(__maybe_type::__do_wrap(__f), __args...); |
- } |
- |
- /** |
- * @brief Exception class thrown when class template function's |
- * operator() is called with an empty target. |
- * |
- */ |
- class bad_function_call : public std::exception { }; |
- |
- /** |
- * The integral constant expression 0 can be converted into a |
- * pointer to this type. It is used by the function template to |
- * accept NULL pointers. |
- */ |
- struct _M_clear_type; |
- |
- /** |
- * Trait identifying "location-invariant" types, meaning that the |
- * address of the object (or any of its members) will not escape. |
- * Also implies a trivial copy constructor and assignment operator. |
- */ |
- template<typename _Tp> |
- struct __is_location_invariant |
- : integral_constant<bool, |
- (is_pointer<_Tp>::value |
- || is_member_pointer<_Tp>::value)> |
- { |
- }; |
- |
- class _Undefined_class; |
- |
- union _Nocopy_types |
- { |
- void* _M_object; |
- const void* _M_const_object; |
- void (*_M_function_pointer)(); |
- void (_Undefined_class::*_M_member_pointer)(); |
- }; |
- |
- union _Any_data |
- { |
- void* _M_access() { return &_M_pod_data[0]; } |
- const void* _M_access() const { return &_M_pod_data[0]; } |
- |
- template<typename _Tp> |
- _Tp& |
- _M_access() |
- { return *static_cast<_Tp*>(_M_access()); } |
- |
- template<typename _Tp> |
- const _Tp& |
- _M_access() const |
- { return *static_cast<const _Tp*>(_M_access()); } |
- |
- _Nocopy_types _M_unused; |
- char _M_pod_data[sizeof(_Nocopy_types)]; |
- }; |
- |
- enum _Manager_operation |
- { |
- __get_type_info, |
- __get_functor_ptr, |
- __clone_functor, |
- __destroy_functor |
- }; |
- |
- // Simple type wrapper that helps avoid annoying const problems |
- // when casting between void pointers and pointers-to-pointers. |
- template<typename _Tp> |
- struct _Simple_type_wrapper |
- { |
- _Simple_type_wrapper(_Tp __value) : __value(__value) { } |
- |
- _Tp __value; |
- }; |
- |
- template<typename _Tp> |
- struct __is_location_invariant<_Simple_type_wrapper<_Tp> > |
- : __is_location_invariant<_Tp> |
- { |
- }; |
- |
- // Converts a reference to a function object into a callable |
- // function object. |
- template<typename _Functor> |
- inline _Functor& |
- __callable_functor(_Functor& __f) |
- { return __f; } |
- |
- template<typename _Member, typename _Class> |
- inline _Mem_fn<_Member _Class::*> |
- __callable_functor(_Member _Class::* &__p) |
- { return mem_fn(__p); } |
- |
- template<typename _Member, typename _Class> |
- inline _Mem_fn<_Member _Class::*> |
- __callable_functor(_Member _Class::* const &__p) |
- { return mem_fn(__p); } |
- |
- template<typename _Signature> |
- class function; |
- |
- /// Base class of all polymorphic function object wrappers. |
- class _Function_base |
- { |
- public: |
- static const std::size_t _M_max_size = sizeof(_Nocopy_types); |
- static const std::size_t _M_max_align = __alignof__(_Nocopy_types); |
- |
- template<typename _Functor> |
- class _Base_manager |
- { |
- protected: |
- static const bool __stored_locally = |
- (__is_location_invariant<_Functor>::value |
- && sizeof(_Functor) <= _M_max_size |
- && __alignof__(_Functor) <= _M_max_align |
- && (_M_max_align % __alignof__(_Functor) == 0)); |
- |
- typedef integral_constant<bool, __stored_locally> _Local_storage; |
- |
- // Retrieve a pointer to the function object |
- static _Functor* |
- _M_get_pointer(const _Any_data& __source) |
- { |
- const _Functor* __ptr = |
- __stored_locally? &__source._M_access<_Functor>() |
- /* have stored a pointer */ : __source._M_access<_Functor*>(); |
- return const_cast<_Functor*>(__ptr); |
- } |
- |
- // Clone a location-invariant function object that fits within |
- // an _Any_data structure. |
- static void |
- _M_clone(_Any_data& __dest, const _Any_data& __source, true_type) |
- { |
- new (__dest._M_access()) _Functor(__source._M_access<_Functor>()); |
- } |
- |
- // Clone a function object that is not location-invariant or |
- // that cannot fit into an _Any_data structure. |
- static void |
- _M_clone(_Any_data& __dest, const _Any_data& __source, false_type) |
- { |
- __dest._M_access<_Functor*>() = |
- new _Functor(*__source._M_access<_Functor*>()); |
- } |
- |
- // Destroying a location-invariant object may still require |
- // destruction. |
- static void |
- _M_destroy(_Any_data& __victim, true_type) |
- { |
- __victim._M_access<_Functor>().~_Functor(); |
- } |
- |
- // Destroying an object located on the heap. |
- static void |
- _M_destroy(_Any_data& __victim, false_type) |
- { |
- delete __victim._M_access<_Functor*>(); |
- } |
- |
- public: |
- static bool |
- _M_manager(_Any_data& __dest, const _Any_data& __source, |
- _Manager_operation __op) |
- { |
- switch (__op) |
- { |
-#ifdef __GXX_RTTI |
- case __get_type_info: |
- __dest._M_access<const type_info*>() = &typeid(_Functor); |
- break; |
-#endif |
- case __get_functor_ptr: |
- __dest._M_access<_Functor*>() = _M_get_pointer(__source); |
- break; |
- |
- case __clone_functor: |
- _M_clone(__dest, __source, _Local_storage()); |
- break; |
- |
- case __destroy_functor: |
- _M_destroy(__dest, _Local_storage()); |
- break; |
- } |
- return false; |
- } |
- |
- static void |
- _M_init_functor(_Any_data& __functor, const _Functor& __f) |
- { _M_init_functor(__functor, __f, _Local_storage()); } |
- |
- template<typename _Signature> |
- static bool |
- _M_not_empty_function(const function<_Signature>& __f) |
- { return __f; } |
- |
- template<typename _Tp> |
- static bool |
- _M_not_empty_function(const _Tp*& __fp) |
- { return __fp; } |
- |
- template<typename _Class, typename _Tp> |
- static bool |
- _M_not_empty_function(_Tp _Class::* const& __mp) |
- { return __mp; } |
- |
- template<typename _Tp> |
- static bool |
- _M_not_empty_function(const _Tp&) |
- { return true; } |
- |
- private: |
- static void |
- _M_init_functor(_Any_data& __functor, const _Functor& __f, true_type) |
- { new (__functor._M_access()) _Functor(__f); } |
- |
- static void |
- _M_init_functor(_Any_data& __functor, const _Functor& __f, false_type) |
- { __functor._M_access<_Functor*>() = new _Functor(__f); } |
- }; |
- |
- template<typename _Functor> |
- class _Ref_manager : public _Base_manager<_Functor*> |
- { |
- typedef _Function_base::_Base_manager<_Functor*> _Base; |
- |
- public: |
- static bool |
- _M_manager(_Any_data& __dest, const _Any_data& __source, |
- _Manager_operation __op) |
- { |
- switch (__op) |
- { |
-#ifdef __GXX_RTTI |
- case __get_type_info: |
- __dest._M_access<const type_info*>() = &typeid(_Functor); |
- break; |
-#endif |
- case __get_functor_ptr: |
- __dest._M_access<_Functor*>() = *_Base::_M_get_pointer(__source); |
- return is_const<_Functor>::value; |
- break; |
- |
- default: |
- _Base::_M_manager(__dest, __source, __op); |
- } |
- return false; |
- } |
- |
- static void |
- _M_init_functor(_Any_data& __functor, reference_wrapper<_Functor> __f) |
- { |
- // TBD: Use address_of function instead. |
- _Base::_M_init_functor(__functor, &__f.get()); |
- } |
- }; |
- |
- _Function_base() : _M_manager(0) { } |
- |
- ~_Function_base() |
- { |
- if (_M_manager) |
- _M_manager(_M_functor, _M_functor, __destroy_functor); |
- } |
- |
- |
- bool _M_empty() const { return !_M_manager; } |
- |
- typedef bool (*_Manager_type)(_Any_data&, const _Any_data&, |
- _Manager_operation); |
- |
- _Any_data _M_functor; |
- _Manager_type _M_manager; |
- }; |
- |
- template<typename _Signature, typename _Functor> |
- class _Function_handler; |
- |
- template<typename _Res, typename _Functor, typename... _ArgTypes> |
- class _Function_handler<_Res(_ArgTypes...), _Functor> |
- : public _Function_base::_Base_manager<_Functor> |
- { |
- typedef _Function_base::_Base_manager<_Functor> _Base; |
- |
- public: |
- static _Res |
- _M_invoke(const _Any_data& __functor, _ArgTypes... __args) |
- { |
- return (*_Base::_M_get_pointer(__functor))(__args...); |
- } |
- }; |
- |
- template<typename _Functor, typename... _ArgTypes> |
- class _Function_handler<void(_ArgTypes...), _Functor> |
- : public _Function_base::_Base_manager<_Functor> |
- { |
- typedef _Function_base::_Base_manager<_Functor> _Base; |
- |
- public: |
- static void |
- _M_invoke(const _Any_data& __functor, _ArgTypes... __args) |
- { |
- (*_Base::_M_get_pointer(__functor))(__args...); |
- } |
- }; |
- |
- template<typename _Res, typename _Functor, typename... _ArgTypes> |
- class _Function_handler<_Res(_ArgTypes...), 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, _ArgTypes... __args) |
- { |
- return |
- __callable_functor(**_Base::_M_get_pointer(__functor))(__args...); |
- } |
- }; |
- |
- template<typename _Functor, typename... _ArgTypes> |
- class _Function_handler<void(_ArgTypes...), 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, _ArgTypes... __args) |
- { |
- __callable_functor(**_Base::_M_get_pointer(__functor))(__args...); |
- } |
- }; |
- |
- template<typename _Class, typename _Member, typename _Res, |
- typename... _ArgTypes> |
- class _Function_handler<_Res(_ArgTypes...), _Member _Class::*> |
- : public _Function_handler<void(_ArgTypes...), _Member _Class::*> |
- { |
- typedef _Function_handler<void(_ArgTypes...), _Member _Class::*> |
- _Base; |
- |
- public: |
- static _Res |
- _M_invoke(const _Any_data& __functor, _ArgTypes... __args) |
- { |
- return _GLIBCXX_TR1 |
- mem_fn(_Base::_M_get_pointer(__functor)->__value)(__args...); |
- } |
- }; |
- |
- template<typename _Class, typename _Member, typename... _ArgTypes> |
- class _Function_handler<void(_ArgTypes...), _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) |
- { |
-#ifdef __GXX_RTTI |
- case __get_type_info: |
- __dest._M_access<const type_info*>() = &typeid(_Functor); |
- break; |
-#endif |
- 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, _ArgTypes... __args) |
- { |
- _GLIBCXX_TR1 |
- mem_fn(_Base::_M_get_pointer(__functor)->__value)(__args...); |
- } |
- }; |
- |
- /// class function |
- template<typename _Res, typename... _ArgTypes> |
- class function<_Res(_ArgTypes...)> |
- : public _Maybe_unary_or_binary_function<_Res, _ArgTypes...>, |
- private _Function_base |
- { |
- /// This class is used to implement the safe_bool idiom. |
- struct _Hidden_type |
- { |
- _Hidden_type* _M_bool; |
- }; |
- |
- /// This typedef is used to implement the safe_bool idiom. |
- typedef _Hidden_type* _Hidden_type::* _Safe_bool; |
- |
- typedef _Res _Signature_type(_ArgTypes...); |
- |
- 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()(_ArgTypes... __args) const; |
- |
-#ifdef __GXX_RTTI |
- // [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; |
-#endif |
- |
- 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&, _ArgTypes...); |
- _Invoker_type _M_invoker; |
- }; |
- |
- template<typename _Res, typename... _ArgTypes> |
- function<_Res(_ArgTypes...)>:: |
- 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, typename... _ArgTypes> |
- template<typename _Functor> |
- function<_Res(_ArgTypes...)>:: |
- 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, typename... _ArgTypes> |
- _Res |
- function<_Res(_ArgTypes...)>:: |
- operator()(_ArgTypes... __args) const |
- { |
- if (_M_empty()) |
- { |
-#if __EXCEPTIONS |
- throw bad_function_call(); |
-#else |
- __builtin_abort(); |
-#endif |
- } |
- return _M_invoker(_M_functor, __args...); |
- } |
- |
-#ifdef __GXX_RTTI |
- template<typename _Res, typename... _ArgTypes> |
- const type_info& |
- function<_Res(_ArgTypes...)>:: |
- 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, typename... _ArgTypes> |
- template<typename _Functor> |
- _Functor* |
- function<_Res(_ArgTypes...)>:: |
- 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, typename... _ArgTypes> |
- template<typename _Functor> |
- const _Functor* |
- function<_Res(_ArgTypes...)>:: |
- 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; |
- } |
-#endif |
- |
- // [3.7.2.7] null pointer comparisons |
- |
- /** |
- * @brief Compares a polymorphic function object wrapper against 0 |
- * (the NULL pointer). |
- * @returns @c true if the wrapper has no target, @c false otherwise |
- * |
- * This function will not throw an exception. |
- */ |
- template<typename _Signature> |
- inline bool |
- operator==(const function<_Signature>& __f, _M_clear_type*) |
- { return !__f; } |
- |
- /// @overload |
- template<typename _Signature> |
- inline bool |
- operator==(_M_clear_type*, const function<_Signature>& __f) |
- { return !__f; } |
- |
- /** |
- * @brief Compares a polymorphic function object wrapper against 0 |
- * (the NULL pointer). |
- * @returns @c false if the wrapper has no target, @c true otherwise |
- * |
- * This function will not throw an exception. |
- */ |
- template<typename _Signature> |
- inline bool |
- operator!=(const function<_Signature>& __f, _M_clear_type*) |
- { return __f; } |
- |
- /// @overload |
- template<typename _Signature> |
- inline bool |
- operator!=(_M_clear_type*, const function<_Signature>& __f) |
- { return __f; } |
- |
- // [3.7.2.8] specialized algorithms |
- |
- /** |
- * @brief Swap the targets of two polymorphic function object wrappers. |
- * |
- * This function will not throw an exception. |
- */ |
- template<typename _Signature> |
- inline void |
- swap(function<_Signature>& __x, function<_Signature>& __y) |
- { __x.swap(__y); } |
- |
-_GLIBCXX_END_NAMESPACE_TR1 |
-} |