From 8e761289a2446367267c6c0d9a26e734f0f78306 Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Wed, 16 Dec 2020 20:29:05 +0300 Subject: Get rid of legacy build systems and rename cutl/ to libcutl/ --- cutl/details/boost/iterator/iterator_facade.hpp | 874 ------------------------ 1 file changed, 874 deletions(-) delete mode 100644 cutl/details/boost/iterator/iterator_facade.hpp (limited to 'cutl/details/boost/iterator/iterator_facade.hpp') diff --git a/cutl/details/boost/iterator/iterator_facade.hpp b/cutl/details/boost/iterator/iterator_facade.hpp deleted file mode 100644 index 63858b5..0000000 --- a/cutl/details/boost/iterator/iterator_facade.hpp +++ /dev/null @@ -1,874 +0,0 @@ -// (C) Copyright David Abrahams 2002. -// (C) Copyright Jeremy Siek 2002. -// (C) Copyright Thomas Witt 2002. -// Distributed under the Boost Software License, Version 1.0. (See -// accompanying file LICENSE_1_0.txt or copy at -// http://www.boost.org/LICENSE_1_0.txt) -#ifndef BOOST_ITERATOR_FACADE_23022003THW_HPP -#define BOOST_ITERATOR_FACADE_23022003THW_HPP - -#include -#include -#include - -#include -#include - -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include // this goes last - -namespace cutl_details_boost -{ - // This forward declaration is required for the friend declaration - // in iterator_core_access - template class iterator_facade; - - namespace detail - { - // A binary metafunction class that always returns bool. VC6 - // ICEs on mpl::always, probably because of the default - // parameters. - struct always_bool2 - { - template - struct apply - { - typedef bool type; - }; - }; - - // - // enable if for use in operator implementation. - // - template < - class Facade1 - , class Facade2 - , class Return - > - struct enable_if_interoperable -#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) - { - typedef typename mpl::if_< - mpl::or_< - is_convertible - , is_convertible - > - , Return - , int[3] - >::type type; - }; -#else - : ::cutl_details_boost::iterators::enable_if< - mpl::or_< - is_convertible - , is_convertible - > - , Return - > - {}; -#endif - - // - // Generates associated types for an iterator_facade with the - // given parameters. - // - template < - class ValueParam - , class CategoryOrTraversal - , class Reference - , class Difference - > - struct iterator_facade_types - { - typedef typename facade_iterator_category< - CategoryOrTraversal, ValueParam, Reference - >::type iterator_category; - - typedef typename remove_const::type value_type; - - // Not the real associated pointer type - typedef typename mpl::eval_if< - cutl_details_boost::detail::iterator_writability_disabled - , add_pointer - , add_pointer - >::type pointer; - -# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ - && (BOOST_WORKAROUND(_STLPORT_VERSION, BOOST_TESTED_AT(0x452)) \ - || BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, BOOST_TESTED_AT(310))) \ - || BOOST_WORKAROUND(BOOST_RWSTD_VER, BOOST_TESTED_AT(0x20101)) \ - || BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, <= 310) - - // To interoperate with some broken library/compiler - // combinations, user-defined iterators must be derived from - // std::iterator. It is possible to implement a standard - // library for broken compilers without this limitation. -# define BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE 1 - - typedef - iterator - base; -# endif - }; - - // iterators whose dereference operators reference the same value - // for all iterators into the same sequence (like many input - // iterators) need help with their postfix ++: the referenced - // value must be read and stored away before the increment occurs - // so that *a++ yields the originally referenced element and not - // the next one. - template - class postfix_increment_proxy - { - typedef typename iterator_value::type value_type; - public: - explicit postfix_increment_proxy(Iterator const& x) - : stored_value(*x) - {} - - // Returning a mutable reference allows nonsense like - // (*r++).mutate(), but it imposes fewer assumptions about the - // behavior of the value_type. In particular, recall that - // (*r).mutate() is legal if operator* returns by value. - value_type& - operator*() const - { - return this->stored_value; - } - private: - mutable value_type stored_value; - }; - - // - // In general, we can't determine that such an iterator isn't - // writable -- we also need to store a copy of the old iterator so - // that it can be written into. - template - class writable_postfix_increment_proxy - { - typedef typename iterator_value::type value_type; - public: - explicit writable_postfix_increment_proxy(Iterator const& x) - : stored_value(*x) - , stored_iterator(x) - {} - - // Dereferencing must return a proxy so that both *r++ = o and - // value_type(*r++) can work. In this case, *r is the same as - // *r++, and the conversion operator below is used to ensure - // readability. - writable_postfix_increment_proxy const& - operator*() const - { - return *this; - } - - // Provides readability of *r++ - operator value_type&() const - { - return stored_value; - } - - // Provides writability of *r++ - template - T const& operator=(T const& x) const - { - *this->stored_iterator = x; - return x; - } - - // This overload just in case only non-const objects are writable - template - T& operator=(T& x) const - { - *this->stored_iterator = x; - return x; - } - - // Provides X(r++) - operator Iterator const&() const - { - return stored_iterator; - } - - private: - mutable value_type stored_value; - Iterator stored_iterator; - }; - -# ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION - - template - struct is_non_proxy_reference_impl - { - static Reference r; - - template - static typename mpl::if_< - is_convertible< - R const volatile* - , Value const volatile* - > - , char[1] - , char[2] - >::type& helper(R const&); - - BOOST_STATIC_CONSTANT(bool, value = sizeof(helper(r)) == 1); - }; - - template - struct is_non_proxy_reference - : mpl::bool_< - is_non_proxy_reference_impl::value - > - {}; -# else - template - struct is_non_proxy_reference - : is_convertible< - typename remove_reference::type - const volatile* - , Value const volatile* - > - {}; -# endif - - // A metafunction to choose the result type of postfix ++ - // - // Because the C++98 input iterator requirements say that *r++ has - // type T (value_type), implementations of some standard - // algorithms like lexicographical_compare may use constructions - // like: - // - // *r++ < *s++ - // - // If *r++ returns a proxy (as required if r is writable but not - // multipass), this sort of expression will fail unless the proxy - // supports the operator<. Since there are any number of such - // operations, we're not going to try to support them. Therefore, - // even if r++ returns a proxy, *r++ will only return a proxy if - // *r also returns a proxy. - template - struct postfix_increment_result - : mpl::eval_if< - mpl::and_< - // A proxy is only needed for readable iterators - is_convertible - - // No multipass iterator can have values that disappear - // before positions can be re-visited - , mpl::not_< - is_convertible< - typename iterator_category_to_traversal::type - , forward_traversal_tag - > - > - > - , mpl::if_< - is_non_proxy_reference - , postfix_increment_proxy - , writable_postfix_increment_proxy - > - , mpl::identity - > - {}; - - // operator->() needs special support for input iterators to strictly meet the - // standard's requirements. If *i is not a reference type, we must still - // produce an lvalue to which a pointer can be formed. We do that by - // returning a proxy object containing an instance of the reference object. - template - struct operator_arrow_dispatch // proxy references - { - struct proxy - { - explicit proxy(Reference const & x) : m_ref(x) {} - Reference* operator->() { return cutl_details_boost::addressof(m_ref); } - // This function is needed for MWCW and BCC, which won't call - // operator-> again automatically per 13.3.1.2 para 8 - operator Reference*() { return cutl_details_boost::addressof(m_ref); } - Reference m_ref; - }; - typedef proxy result_type; - static result_type apply(Reference const & x) - { - return result_type(x); - } - }; - - template - struct operator_arrow_dispatch // "real" references - { - typedef Pointer result_type; - static result_type apply(T& x) - { - return cutl_details_boost::addressof(x); - } - }; - -# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) - // Deal with ETI - template<> - struct operator_arrow_dispatch - { - typedef int result_type; - }; -# endif - - // A proxy return type for operator[], needed to deal with - // iterators that may invalidate referents upon destruction. - // Consider the temporary iterator in *(a + n) - template - class operator_brackets_proxy - { - // Iterator is actually an iterator_facade, so we do not have to - // go through iterator_traits to access the traits. - typedef typename Iterator::reference reference; - typedef typename Iterator::value_type value_type; - - public: - operator_brackets_proxy(Iterator const& iter) - : m_iter(iter) - {} - - operator reference() const - { - return *m_iter; - } - - operator_brackets_proxy& operator=(value_type const& val) - { - *m_iter = val; - return *this; - } - - private: - Iterator m_iter; - }; - - // A metafunction that determines whether operator[] must return a - // proxy, or whether it can simply return a copy of the value_type. - template - struct use_operator_brackets_proxy - : mpl::not_< - mpl::and_< - // Really we want an is_copy_constructible trait here, - // but is_POD will have to suffice in the meantime. - cutl_details_boost::is_POD - , iterator_writability_disabled - > - > - {}; - - template - struct operator_brackets_result - { - typedef typename mpl::if_< - use_operator_brackets_proxy - , operator_brackets_proxy - , Value - >::type type; - }; - - template - operator_brackets_proxy make_operator_brackets_result(Iterator const& iter, mpl::true_) - { - return operator_brackets_proxy(iter); - } - - template - typename Iterator::value_type make_operator_brackets_result(Iterator const& iter, mpl::false_) - { - return *iter; - } - - struct choose_difference_type - { - template - struct apply - : -# ifdef BOOST_NO_ONE_WAY_ITERATOR_INTEROP - iterator_difference -# elif BOOST_WORKAROUND(BOOST_MSVC, < 1300) - mpl::if_< - is_convertible - , typename I1::difference_type - , typename I2::difference_type - > -# else - mpl::eval_if< - is_convertible - , iterator_difference - , iterator_difference - > -# endif - {}; - - }; - } // namespace detail - - - // Macros which describe the declarations of binary operators -# ifdef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY -# define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type) \ - template < \ - class Derived1, class V1, class TC1, class Reference1, class Difference1 \ - , class Derived2, class V2, class TC2, class Reference2, class Difference2 \ - > \ - prefix typename mpl::apply2::type \ - operator op( \ - iterator_facade const& lhs \ - , iterator_facade const& rhs) -# else -# define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type) \ - template < \ - class Derived1, class V1, class TC1, class Reference1, class Difference1 \ - , class Derived2, class V2, class TC2, class Reference2, class Difference2 \ - > \ - prefix typename cutl_details_boost::detail::enable_if_interoperable< \ - Derived1, Derived2 \ - , typename mpl::apply2::type \ - >::type \ - operator op( \ - iterator_facade const& lhs \ - , iterator_facade const& rhs) -# endif - -# define BOOST_ITERATOR_FACADE_PLUS_HEAD(prefix,args) \ - template \ - prefix Derived operator+ args - - // - // Helper class for granting access to the iterator core interface. - // - // The simple core interface is used by iterator_facade. The core - // interface of a user/library defined iterator type should not be made public - // so that it does not clutter the public interface. Instead iterator_core_access - // should be made friend so that iterator_facade can access the core - // interface through iterator_core_access. - // - class iterator_core_access - { -# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) - // Tasteless as this may seem, making all members public allows member templates - // to work in the absence of member template friends. - public: -# else - - template friend class iterator_facade; - -# define BOOST_ITERATOR_FACADE_RELATION(op) \ - BOOST_ITERATOR_FACADE_INTEROP_HEAD(friend,op, cutl_details_boost::detail::always_bool2); - - BOOST_ITERATOR_FACADE_RELATION(==) - BOOST_ITERATOR_FACADE_RELATION(!=) - - BOOST_ITERATOR_FACADE_RELATION(<) - BOOST_ITERATOR_FACADE_RELATION(>) - BOOST_ITERATOR_FACADE_RELATION(<=) - BOOST_ITERATOR_FACADE_RELATION(>=) -# undef BOOST_ITERATOR_FACADE_RELATION - - BOOST_ITERATOR_FACADE_INTEROP_HEAD( - friend, -, cutl_details_boost::detail::choose_difference_type) - ; - - BOOST_ITERATOR_FACADE_PLUS_HEAD( - friend inline - , (iterator_facade const& - , typename Derived::difference_type) - ) - ; - - BOOST_ITERATOR_FACADE_PLUS_HEAD( - friend inline - , (typename Derived::difference_type - , iterator_facade const&) - ) - ; - -# endif - - template - static typename Facade::reference dereference(Facade const& f) - { - return f.dereference(); - } - - template - static void increment(Facade& f) - { - f.increment(); - } - - template - static void decrement(Facade& f) - { - f.decrement(); - } - - template - static bool equal(Facade1 const& f1, Facade2 const& f2, mpl::true_) - { - return f1.equal(f2); - } - - template - static bool equal(Facade1 const& f1, Facade2 const& f2, mpl::false_) - { - return f2.equal(f1); - } - - template - static void advance(Facade& f, typename Facade::difference_type n) - { - f.advance(n); - } - - template - static typename Facade1::difference_type distance_from( - Facade1 const& f1, Facade2 const& f2, mpl::true_) - { - return -f1.distance_to(f2); - } - - template - static typename Facade2::difference_type distance_from( - Facade1 const& f1, Facade2 const& f2, mpl::false_) - { - return f2.distance_to(f1); - } - - // - // Curiously Recurring Template interface. - // - template - static I& derived(iterator_facade& facade) - { - return *static_cast(&facade); - } - - template - static I const& derived(iterator_facade const& facade) - { - return *static_cast(&facade); - } - - private: - // objects of this class are useless - iterator_core_access(); //undefined - }; - - // - // iterator_facade - use as a public base class for defining new - // standard-conforming iterators. - // - template < - class Derived // The derived iterator type being constructed - , class Value - , class CategoryOrTraversal - , class Reference = Value& - , class Difference = std::ptrdiff_t - > - class iterator_facade -# ifdef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE - : public cutl_details_boost::detail::iterator_facade_types< - Value, CategoryOrTraversal, Reference, Difference - >::base -# undef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE -# endif - { - private: - // - // Curiously Recurring Template interface. - // - Derived& derived() - { - return *static_cast(this); - } - - Derived const& derived() const - { - return *static_cast(this); - } - - typedef cutl_details_boost::detail::iterator_facade_types< - Value, CategoryOrTraversal, Reference, Difference - > associated_types; - - typedef cutl_details_boost::detail::operator_arrow_dispatch< - Reference - , typename associated_types::pointer - > operator_arrow_dispatch_; - - protected: - // For use by derived classes - typedef iterator_facade iterator_facade_; - - public: - - typedef typename associated_types::value_type value_type; - typedef Reference reference; - typedef Difference difference_type; - - typedef typename operator_arrow_dispatch_::result_type pointer; - - typedef typename associated_types::iterator_category iterator_category; - - reference operator*() const - { - return iterator_core_access::dereference(this->derived()); - } - - pointer operator->() const - { - return operator_arrow_dispatch_::apply(*this->derived()); - } - - typename cutl_details_boost::detail::operator_brackets_result::type - operator[](difference_type n) const - { - typedef cutl_details_boost::detail::use_operator_brackets_proxy use_proxy; - - return cutl_details_boost::detail::make_operator_brackets_result( - this->derived() + n - , use_proxy() - ); - } - - Derived& operator++() - { - iterator_core_access::increment(this->derived()); - return this->derived(); - } - -# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) - typename cutl_details_boost::detail::postfix_increment_result::type - operator++(int) - { - typename cutl_details_boost::detail::postfix_increment_result::type - tmp(this->derived()); - ++*this; - return tmp; - } -# endif - - Derived& operator--() - { - iterator_core_access::decrement(this->derived()); - return this->derived(); - } - - Derived operator--(int) - { - Derived tmp(this->derived()); - --*this; - return tmp; - } - - Derived& operator+=(difference_type n) - { - iterator_core_access::advance(this->derived(), n); - return this->derived(); - } - - Derived& operator-=(difference_type n) - { - iterator_core_access::advance(this->derived(), -n); - return this->derived(); - } - - Derived operator-(difference_type x) const - { - Derived result(this->derived()); - return result -= x; - } - -# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) - // There appears to be a bug which trashes the data of classes - // derived from iterator_facade when they are assigned unless we - // define this assignment operator. This bug is only revealed - // (so far) in STLPort debug mode, but it's clearly a codegen - // problem so we apply the workaround for all MSVC6. - iterator_facade& operator=(iterator_facade const&) - { - return *this; - } -# endif - }; - -# if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) - template - inline typename cutl_details_boost::detail::postfix_increment_result::type - operator++( - iterator_facade& i - , int - ) - { - typename cutl_details_boost::detail::postfix_increment_result::type - tmp(*static_cast(&i)); - - ++i; - - return tmp; - } -# endif - - - // - // Comparison operator implementation. The library supplied operators - // enables the user to provide fully interoperable constant/mutable - // iterator types. I.e. the library provides all operators - // for all mutable/constant iterator combinations. - // - // Note though that this kind of interoperability for constant/mutable - // iterators is not required by the standard for container iterators. - // All the standard asks for is a conversion mutable -> constant. - // Most standard library implementations nowadays provide fully interoperable - // iterator implementations, but there are still heavily used implementations - // that do not provide them. (Actually it's even worse, they do not provide - // them for only a few iterators.) - // - // ?? Maybe a BOOST_ITERATOR_NO_FULL_INTEROPERABILITY macro should - // enable the user to turn off mixed type operators - // - // The library takes care to provide only the right operator overloads. - // I.e. - // - // bool operator==(Iterator, Iterator); - // bool operator==(ConstIterator, Iterator); - // bool operator==(Iterator, ConstIterator); - // bool operator==(ConstIterator, ConstIterator); - // - // ... - // - // In order to do so it uses c++ idioms that are not yet widely supported - // by current compiler releases. The library is designed to degrade gracefully - // in the face of compiler deficiencies. In general compiler - // deficiencies result in less strict error checking and more obscure - // error messages, functionality is not affected. - // - // For full operation compiler support for "Substitution Failure Is Not An Error" - // (aka. enable_if) and cutl_details_boost::is_convertible is required. - // - // The following problems occur if support is lacking. - // - // Pseudo code - // - // --------------- - // AdaptorA a1; - // AdaptorA a2; - // - // // This will result in a no such overload error in full operation - // // If enable_if or is_convertible is not supported - // // The instantiation will fail with an error hopefully indicating that - // // there is no operator== for Iterator1, Iterator2 - // // The same will happen if no enable_if is used to remove - // // false overloads from the templated conversion constructor - // // of AdaptorA. - // - // a1 == a2; - // ---------------- - // - // AdaptorA a; - // AdaptorB b; - // - // // This will result in a no such overload error in full operation - // // If enable_if is not supported the static assert used - // // in the operator implementation will fail. - // // This will accidently work if is_convertible is not supported. - // - // a == b; - // ---------------- - // - -# ifdef BOOST_NO_ONE_WAY_ITERATOR_INTEROP -# define BOOST_ITERATOR_CONVERTIBLE(a,b) mpl::true_() -# else -# define BOOST_ITERATOR_CONVERTIBLE(a,b) is_convertible() -# endif - -# define BOOST_ITERATOR_FACADE_INTEROP(op, result_type, return_prefix, base_op) \ - BOOST_ITERATOR_FACADE_INTEROP_HEAD(inline, op, result_type) \ - { \ - /* For those compilers that do not support enable_if */ \ - BOOST_STATIC_ASSERT(( \ - is_interoperable< Derived1, Derived2 >::value \ - )); \ - return_prefix iterator_core_access::base_op( \ - *static_cast(&lhs) \ - , *static_cast(&rhs) \ - , BOOST_ITERATOR_CONVERTIBLE(Derived2,Derived1) \ - ); \ - } - -# define BOOST_ITERATOR_FACADE_RELATION(op, return_prefix, base_op) \ - BOOST_ITERATOR_FACADE_INTEROP( \ - op \ - , cutl_details_boost::detail::always_bool2 \ - , return_prefix \ - , base_op \ - ) - - BOOST_ITERATOR_FACADE_RELATION(==, return, equal) - BOOST_ITERATOR_FACADE_RELATION(!=, return !, equal) - - BOOST_ITERATOR_FACADE_RELATION(<, return 0 >, distance_from) - BOOST_ITERATOR_FACADE_RELATION(>, return 0 <, distance_from) - BOOST_ITERATOR_FACADE_RELATION(<=, return 0 >=, distance_from) - BOOST_ITERATOR_FACADE_RELATION(>=, return 0 <=, distance_from) -# undef BOOST_ITERATOR_FACADE_RELATION - - // operator- requires an additional part in the static assertion - BOOST_ITERATOR_FACADE_INTEROP( - - - , cutl_details_boost::detail::choose_difference_type - , return - , distance_from - ) -# undef BOOST_ITERATOR_FACADE_INTEROP -# undef BOOST_ITERATOR_FACADE_INTEROP_HEAD - -# define BOOST_ITERATOR_FACADE_PLUS(args) \ - BOOST_ITERATOR_FACADE_PLUS_HEAD(inline, args) \ - { \ - Derived tmp(static_cast(i)); \ - return tmp += n; \ - } - -BOOST_ITERATOR_FACADE_PLUS(( - iterator_facade const& i - , typename Derived::difference_type n -)) - -BOOST_ITERATOR_FACADE_PLUS(( - typename Derived::difference_type n - , iterator_facade const& i -)) -# undef BOOST_ITERATOR_FACADE_PLUS -# undef BOOST_ITERATOR_FACADE_PLUS_HEAD - -} // namespace cutl_details_boost - -#include - -#endif // BOOST_ITERATOR_FACADE_23022003THW_HPP -- cgit v1.1