From 465454ebad5128958247403aa71c1a916f190718 Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Mon, 2 Mar 2020 14:04:09 +0000
Subject: Remove old contrib/libstdc++, unused since r358454
Sponsored by: The FreeBSD Foundation
---
contrib/libstdc++/include/tr1/functional | 1106 ------------------------------
1 file changed, 1106 deletions(-)
delete mode 100644 contrib/libstdc++/include/tr1/functional
(limited to 'contrib/libstdc++/include/tr1/functional')
diff --git a/contrib/libstdc++/include/tr1/functional b/contrib/libstdc++/include/tr1/functional
deleted file mode 100644
index f3cc78de7516..000000000000
--- a/contrib/libstdc++/include/tr1/functional
+++ /dev/null
@@ -1,1106 +0,0 @@
-// TR1 functional header -*- C++ -*-
-
-// Copyright (C) 2004, 2005, 2006, 2007 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 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
- * This is a TR1 C++ Library header.
- */
-
-#ifndef _TR1_FUNCTIONAL
-#define _TR1_FUNCTIONAL 1
-
-#pragma GCC system_header
-
-#include "../functional"
-#include <typeinfo>
-#include <tr1/type_traits>
-#include <ext/type_traits.h>
-#include <cstdlib> // for std::abort
-#include <tr1/tuple>
-
-namespace std
-{
-_GLIBCXX_BEGIN_NAMESPACE(tr1)
-
- template<typename _MemberPointer>
- class _Mem_fn;
-
- /**
- * @if maint
- * Actual implementation of _Has_result_type, which uses SFINAE to
- * determine if the type _Tp has a publicly-accessible member type
- * result_type.
- * @endif
- */
- 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 maint
- * If we have found a result_type, extract it.
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * Base class for any function object that has a weak result type, as
- * defined in 3.3/3 of TR1.
- * @endif
- */
- template<typename _Functor>
- struct _Weak_result_type_impl
- : _Maybe_get_result_type<_Has_result_type<_Functor>::value, _Functor>
- {
- };
-
- /**
- * @if maint
- * Strip top-level cv-qualifiers from the function object and let
- * _Weak_result_type_impl perform the real work.
- * @endif
- */
- template<typename _Functor>
- struct _Weak_result_type
- : _Weak_result_type_impl<typename remove_cv<_Functor>::type>
- {
- };
-
- template<typename _Signature>
- class result_of;
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * Determines if the type _Tp derives from unary_function.
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * Determines if the type _Tp derives from binary_function.
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * Turns a function type into a function pointer type
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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;
- };
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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>
- { };
-
- 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; }
-
-#define _GLIBCXX_REPEAT_HEADER <tr1/ref_wrap_iterate.h>
-#include <tr1/repeat.h>
-#undef _GLIBCXX_REPEAT_HEADER
- };
-
-
- // 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;
- };
-
- 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;
-
- /**
- * @if maint
- * The type of placeholder objects defined by libstdc++.
- * @endif
- */
- template<int _Num> struct _Placeholder { };
-
- /**
- * @if maint
- * Partial specialization of is_placeholder that provides the placeholder
- * number for the placeholder objects defined by libstdc++.
- * @endif
- */
- template<int _Num>
- struct is_placeholder<_Placeholder<_Num> >
- { static const int value = _Num; };
-
- template<int _Num>
- const int is_placeholder<_Placeholder<_Num> >::value;
-
- /**
- * @if maint
- * 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, isn't not 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.
- * @endif
- */
- template<typename _Arg,
- bool _IsBindExp = is_bind_expression<_Arg>::value,
- bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)>
- class _Mu;
-
- /**
- * @if maint
- * If the argument is reference_wrapper<_Tp>, returns the
- * underlying reference. [TR1 3.6.3/5 bullet 1]
- * @endif
- */
- 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 maint
- * 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]
- * @endif
- */
- template<typename _Arg>
- class _Mu<_Arg, true, false>
- {
- public:
- template<typename _Signature> class result;
-
-#define _GLIBCXX_REPEAT_HEADER <tr1/mu_iterate.h>
-# include <tr1/repeat.h>
-#undef _GLIBCXX_REPEAT_HEADER
- };
-
- /**
- * @if maint
- * 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]
- * @endif
- */
- 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 tuple_element<(is_placeholder<_Arg>::value - 1),
- _Tuple>::type __base_type;
-
- public:
- typedef typename add_reference<__base_type>::type type;
- };
-
- template<typename _Tuple>
- typename result<_Mu(_Arg, _Tuple)>::type
- operator()(const volatile _Arg&, const _Tuple& __tuple) const volatile
- {
- return ::std::tr1::get<(is_placeholder<_Arg>::value - 1)>(__tuple);
- }
- };
-
- /**
- * @if maint
- * 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]
- * @endif
- */
- 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)>
- {
- typedef typename add_reference<_CVArg>::type type;
- };
-
- // Pick up the cv-qualifiers of the argument
- template<typename _CVArg, typename _Tuple>
- _CVArg& operator()(_CVArg& __arg, const _Tuple&) const volatile
- { return __arg; }
- };
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- template<typename _Tp>
- struct _Maybe_wrap_member_pointer
- {
- typedef _Tp type;
- static const _Tp& __do_wrap(const _Tp& __x) { return __x; }
- };
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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); }
- };
-
- /**
- * @if maint
- * Type of the function object returned from bind().
- * @endif
- */
- template<typename _Signature>
- struct _Bind;
-
- /**
- * @if maint
- * Type of the function object returned from bind<R>().
- * @endif
- */
- template<typename _Result, typename _Signature>
- struct _Bind_result;
-
- /**
- * @if maint
- * Class template _Bind is always a bind expression.
- * @endif
- */
- 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;
-
- /**
- * @if maint
- * Class template _Bind_result is always a bind expression.
- * @endif
- */
- 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;
-
- /**
- * @brief Exception class thrown when class template function's
- * operator() is called with an empty target.
- *
- */
- class bad_function_call : public std::exception { };
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- struct _M_clear_type;
-
- /**
- * @if maint
- * 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.
- * @endif
- */
- 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, typename _Functor>
- class _Function_handler;
-
- template<typename _Signature>
- class function;
-
-
- /**
- * @if maint
- * Base class of all polymorphic function object wrappers.
- * @endif
- */
- 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) {
- case __get_type_info:
- __dest._M_access<const type_info*>() = &typeid(_Functor);
- break;
-
- 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) {
- 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);
- 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;
- };
-
- // [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
-}
-
-#define _GLIBCXX_JOIN(X,Y) _GLIBCXX_JOIN2( X , Y )
-#define _GLIBCXX_JOIN2(X,Y) _GLIBCXX_JOIN3(X,Y)
-#define _GLIBCXX_JOIN3(X,Y) X##Y
-#define _GLIBCXX_REPEAT_HEADER <tr1/functional_iterate.h>
-#include <tr1/repeat.h>
-#undef _GLIBCXX_REPEAT_HEADER
-#undef _GLIBCXX_JOIN3
-#undef _GLIBCXX_JOIN2
-#undef _GLIBCXX_JOIN
-
-#include <tr1/functional_hash.h>
-
-#endif
--
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