Swiftdiff options
Diffstat (limited to '3rdParty/Boost/src/boost/optional')
| -rw-r--r-- | 3rdParty/Boost/src/boost/optional/bad_optional_access.hpp | 29 | ||||
| -rw-r--r-- | 3rdParty/Boost/src/boost/optional/optional.hpp | 679 | ||||
| -rw-r--r-- | 3rdParty/Boost/src/boost/optional/optional_fwd.hpp | 5 |
3 files changed, 632 insertions, 81 deletions
diff --git a/3rdParty/Boost/src/boost/optional/bad_optional_access.hpp b/3rdParty/Boost/src/boost/optional/bad_optional_access.hpp new file mode 100644 index 0000000..bf5cae0 --- /dev/null +++ b/3rdParty/Boost/src/boost/optional/bad_optional_access.hpp @@ -0,0 +1,29 @@ +// Copyright (C) 2014, Andrzej Krzemienski. +// +// Use, modification, and distribution is subject to 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) +// +// See http://www.boost.org/libs/optional for documentation. +// +// You are welcome to contact the author at: +// akrzemi1@gmail.com +// +#ifndef BOOST_BAD_OPTIONAL_ACCESS_22MAY2014_HPP +#define BOOST_BAD_OPTIONAL_ACCESS_22MAY2014_HPP + +#include <stdexcept> + +namespace boost { + +class bad_optional_access : public std::logic_error +{ +public: + bad_optional_access() + : std::logic_error("Attempted to access the value of an uninitialized optional object.") + {} +}; + +} // namespace boost + +#endif diff --git a/3rdParty/Boost/src/boost/optional/optional.hpp b/3rdParty/Boost/src/boost/optional/optional.hpp index 0d6dba4..07c4bd3 100644 --- a/3rdParty/Boost/src/boost/optional/optional.hpp +++ b/3rdParty/Boost/src/boost/optional/optional.hpp @@ -1,4 +1,5 @@ // Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal. +// Copyright (C) 2014 Andrzej Krzemienski. // // Use, modification, and distribution is subject to the Boost Software // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at @@ -11,58 +12,55 @@ // // Revisions: // 27 Apr 2008 (improved swap) Fernando Cacciola, Niels Dekker, Thorsten Ottosen +// 05 May 2014 (Added move semantics) Andrzej Krzemienski // #ifndef BOOST_OPTIONAL_OPTIONAL_FLC_19NOV2002_HPP #define BOOST_OPTIONAL_OPTIONAL_FLC_19NOV2002_HPP #include <new> #include <algorithm> +#include <iosfwd> #include <boost/config.hpp> #include <boost/assert.hpp> +#include <boost/core/explicit_operator_bool.hpp> +#include <boost/optional/bad_optional_access.hpp> +#include <boost/static_assert.hpp> +#include <boost/throw_exception.hpp> #include <boost/type.hpp> #include <boost/type_traits/alignment_of.hpp> #include <boost/type_traits/has_nothrow_constructor.hpp> #include <boost/type_traits/type_with_alignment.hpp> +#include <boost/type_traits/remove_const.hpp> #include <boost/type_traits/remove_reference.hpp> +#include <boost/type_traits/decay.hpp> +#include <boost/type_traits/is_base_of.hpp> +#include <boost/type_traits/is_lvalue_reference.hpp> +#include <boost/type_traits/is_nothrow_move_assignable.hpp> +#include <boost/type_traits/is_nothrow_move_constructible.hpp> #include <boost/type_traits/is_reference.hpp> +#include <boost/type_traits/is_rvalue_reference.hpp> +#include <boost/type_traits/is_same.hpp> #include <boost/mpl/if.hpp> #include <boost/mpl/bool.hpp> #include <boost/mpl/not.hpp> #include <boost/detail/reference_content.hpp> +#include <boost/move/utility.hpp> #include <boost/none.hpp> -#include <boost/utility/swap.hpp> #include <boost/utility/addressof.hpp> #include <boost/utility/compare_pointees.hpp> +#include <boost/utility/enable_if.hpp> #include <boost/utility/in_place_factory.hpp> +#include <boost/utility/swap.hpp> -#include <boost/optional/optional_fwd.hpp> -#if BOOST_WORKAROUND(BOOST_MSVC, == 1200) -// VC6.0 has the following bug: -// When a templated assignment operator exist, an implicit conversion -// constructing an optional<T> is used when assigment of the form: -// optional<T> opt ; opt = T(...); -// is compiled. -// However, optional's ctor is _explicit_ and the assignemt shouldn't compile. -// Therefore, for VC6.0 templated assignment is disabled. -// -#define BOOST_OPTIONAL_NO_CONVERTING_ASSIGNMENT -#endif -#if BOOST_WORKAROUND(BOOST_MSVC, == 1300) -// VC7.0 has the following bug: -// When both a non-template and a template copy-ctor exist -// and the templated version is made 'explicit', the explicit is also -// given to the non-templated version, making the class non-implicitely-copyable. -// -#define BOOST_OPTIONAL_NO_CONVERTING_COPY_CTOR -#endif +#include <boost/optional/optional_fwd.hpp> -#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) || BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION,<=700) -// AFAICT only VC7.1 correctly resolves the overload set +#if BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION,<=700) +// AFAICT only Intel 7 correctly resolves the overload set // that includes the in-place factory taking functions, -// so for the other VC versions, in-place factory support +// so for the other icc versions, in-place factory support // is disabled #define BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT #endif @@ -83,8 +81,7 @@ #define BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION #endif -#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) > 302 \ - && !defined(__INTEL_COMPILER) +#if defined(__GNUC__) && !defined(__INTEL_COMPILER) // GCC since 3.3 has may_alias attribute that helps to alleviate optimizer issues with // regard to violation of the strict aliasing rules. The optional< T > storage type is marked // with this attribute in order to let the compiler know that it will alias objects of type T @@ -115,7 +112,6 @@ class typed_in_place_factory_base ; template<class T> void swap ( optional<T>& x, optional<T>& y ); namespace optional_detail { - // This local class is used instead of that in "aligned_storage.hpp" // because I've found the 'official' class to ICE BCB5.5 // when some types are used with optional<> @@ -127,7 +123,7 @@ class aligned_storage union // This works around GCC warnings about breaking strict aliasing rules when casting storage address to T* #if defined(BOOST_OPTIONAL_DETAIL_USE_ATTRIBUTE_MAY_ALIAS) - __attribute__((may_alias)) + __attribute__((__may_alias__)) #endif dummy_u { @@ -152,22 +148,49 @@ struct types_when_isnt_ref { typedef T const& reference_const_type ; typedef T & reference_type ; +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + typedef T && rval_reference_type ; + typedef T && reference_type_of_temporary_wrapper; +#ifdef BOOST_MOVE_OLD_RVALUE_REF_BINDING_RULES + // GCC 4.4 has support for an early draft of rvalue references. The conforming version below + // causes warnings about returning references to a temporary. + static T&& move(T&& r) { return r; } +#else + static rval_reference_type move(reference_type r) { return boost::move(r); } +#endif +#endif typedef T const* pointer_const_type ; typedef T * pointer_type ; typedef T const& argument_type ; } ; + template<class T> struct types_when_is_ref { typedef BOOST_DEDUCED_TYPENAME remove_reference<T>::type raw_type ; - typedef raw_type& reference_const_type ; - typedef raw_type& reference_type ; - typedef raw_type* pointer_const_type ; - typedef raw_type* pointer_type ; - typedef raw_type& argument_type ; + typedef raw_type& reference_const_type ; + typedef raw_type& reference_type ; +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + typedef BOOST_DEDUCED_TYPENAME remove_const<raw_type>::type&& rval_reference_type ; + typedef raw_type& reference_type_of_temporary_wrapper; + static reference_type move(reference_type r) { return r; } +#endif + typedef raw_type* pointer_const_type ; + typedef raw_type* pointer_type ; + typedef raw_type& argument_type ; } ; +template <class To, class From> +void prevent_binding_rvalue_ref_to_optional_lvalue_ref() +{ +#ifndef BOOST_OPTIONAL_ALLOW_BINDING_TO_RVALUES + BOOST_STATIC_ASSERT_MSG( + !boost::is_lvalue_reference<To>::value || !boost::is_rvalue_reference<From>::value, + "binding rvalue references to optional lvalue references is disallowed"); +#endif +} + struct optional_tag {} ; template<class T> @@ -201,10 +224,12 @@ class optional_base : public optional_tag typedef BOOST_DEDUCED_TYPENAME mpl::if_<is_reference_predicate,types_when_ref,types_when_not_ref>::type types ; protected: - typedef bool (this_type::*unspecified_bool_type)() const; - typedef BOOST_DEDUCED_TYPENAME types::reference_type reference_type ; typedef BOOST_DEDUCED_TYPENAME types::reference_const_type reference_const_type ; +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + typedef BOOST_DEDUCED_TYPENAME types::rval_reference_type rval_reference_type ; + typedef BOOST_DEDUCED_TYPENAME types::reference_type_of_temporary_wrapper reference_type_of_temporary_wrapper ; +#endif typedef BOOST_DEDUCED_TYPENAME types::pointer_type pointer_type ; typedef BOOST_DEDUCED_TYPENAME types::pointer_const_type pointer_const_type ; typedef BOOST_DEDUCED_TYPENAME types::argument_type argument_type ; @@ -230,6 +255,17 @@ class optional_base : public optional_tag construct(val); } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // move-construct an optional<T> initialized from an rvalue-ref to 'val'. + // Can throw if T::T(T&&) does + optional_base ( rval_reference_type val ) + : + m_initialized(false) + { + construct( boost::move(val) ); + } +#endif + // Creates an optional<T> initialized with 'val' IFF cond is true, otherwise creates an uninitialzed optional<T>. // Can throw if T::T(T const&) does optional_base ( bool cond, argument_type val ) @@ -250,7 +286,29 @@ class optional_base : public optional_tag construct(rhs.get_impl()); } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Creates a deep move of another optional<T> + // Can throw if T::T(T&&) does + optional_base ( optional_base&& rhs ) + : + m_initialized(false) + { + if ( rhs.is_initialized() ) + construct( boost::move(rhs.get_impl()) ); + } +#endif + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + + template<class Expr, class PtrExpr> + explicit optional_base ( Expr&& expr, PtrExpr const* tag ) + : + m_initialized(false) + { + construct(boost::forward<Expr>(expr),tag); + } +#else // This is used for both converting and in-place constructions. // Derived classes use the 'tag' to select the appropriate // implementation (the correct 'construct()' overload) @@ -262,6 +320,7 @@ class optional_base : public optional_tag construct(expr,tag); } +#endif // No-throw (assuming T::~T() doesn't) @@ -282,6 +341,24 @@ class optional_base : public optional_tag construct(rhs.get_impl()); } } + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Assigns from another optional<T> (deep-moves the rhs value) + void assign ( optional_base&& rhs ) + { + if (is_initialized()) + { + if ( rhs.is_initialized() ) + assign_value(boost::move(rhs.get_impl()), is_reference_predicate() ); + else destroy(); + } + else + { + if ( rhs.is_initialized() ) + construct(boost::move(rhs.get_impl())); + } + } +#endif // Assigns from another _convertible_ optional<U> (deep-copies the rhs value) template<class U> @@ -300,6 +377,26 @@ class optional_base : public optional_tag } } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // move-assigns from another _convertible_ optional<U> (deep-moves from the rhs value) + template<class U> + void assign ( optional<U>&& rhs ) + { + typedef BOOST_DEDUCED_TYPENAME optional<U>::rval_reference_type ref_type; + if (is_initialized()) + { + if ( rhs.is_initialized() ) + assign_value(static_cast<ref_type>(rhs.get()), is_reference_predicate() ); + else destroy(); + } + else + { + if ( rhs.is_initialized() ) + construct(static_cast<ref_type>(rhs.get())); + } + } +#endif + // Assigns from a T (deep-copies the rhs value) void assign ( argument_type val ) { @@ -307,28 +404,50 @@ class optional_base : public optional_tag assign_value(val, is_reference_predicate() ); else construct(val); } + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Assigns from a T (deep-moves the rhs value) + void assign ( rval_reference_type val ) + { + if (is_initialized()) + assign_value( boost::move(val), is_reference_predicate() ); + else construct( boost::move(val) ); + } +#endif // Assigns from "none", destroying the current value, if any, leaving this UNINITIALIZED // No-throw (assuming T::~T() doesn't) - void assign ( none_t ) { destroy(); } + void assign ( none_t ) BOOST_NOEXCEPT { destroy(); } #ifndef BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + template<class Expr, class ExprPtr> + void assign_expr ( Expr&& expr, ExprPtr const* tag ) + { + if (is_initialized()) + assign_expr_to_initialized(boost::forward<Expr>(expr),tag); + else construct(boost::forward<Expr>(expr),tag); + } +#else template<class Expr> void assign_expr ( Expr const& expr, Expr const* tag ) - { - if (is_initialized()) - assign_expr_to_initialized(expr,tag); - else construct(expr,tag); - } + { + if (is_initialized()) + assign_expr_to_initialized(expr,tag); + else construct(expr,tag); + } +#endif + #endif public : - // Destroys the current value, if any, leaving this UNINITIALIZED + // **DEPPRECATED** Destroys the current value, if any, leaving this UNINITIALIZED // No-throw (assuming T::~T() doesn't) - void reset() { destroy(); } + void reset() BOOST_NOEXCEPT { destroy(); } - // Replaces the current value -if any- with 'val' + // **DEPPRECATED** Replaces the current value -if any- with 'val' void reset ( argument_type val ) { assign(val); } // Returns a pointer to the value if this is initialized, otherwise, @@ -343,11 +462,92 @@ class optional_base : public optional_tag void construct ( argument_type val ) { - new (m_storage.address()) internal_type(val) ; + ::new (m_storage.address()) internal_type(val) ; + m_initialized = true ; + } + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + void construct ( rval_reference_type val ) + { + ::new (m_storage.address()) internal_type( types::move(val) ) ; + m_initialized = true ; + } +#endif + + +#if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) && (!defined BOOST_NO_CXX11_VARIADIC_TEMPLATES) + // Constructs in-place + // upon exception *this is always uninitialized + template<class... Args> + void emplace_assign ( Args&&... args ) + { + destroy(); + ::new (m_storage.address()) internal_type( boost::forward<Args>(args)... ); + m_initialized = true ; + } +#elif (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) + template<class Arg> + void emplace_assign ( Arg&& arg ) + { + destroy(); + ::new (m_storage.address()) internal_type( boost::forward<Arg>(arg) ); + m_initialized = true ; + } +#else + template<class Arg> + void emplace_assign ( const Arg& arg ) + { + destroy(); + ::new (m_storage.address()) internal_type( arg ); + m_initialized = true ; + } + + template<class Arg> + void emplace_assign ( Arg& arg ) + { + destroy(); + ::new (m_storage.address()) internal_type( arg ); m_initialized = true ; } +#endif #ifndef BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Constructs in-place using the given factory + template<class Expr> + void construct ( Expr&& factory, in_place_factory_base const* ) + { + BOOST_STATIC_ASSERT ( ::boost::mpl::not_<is_reference_predicate>::value ) ; + boost_optional_detail::construct<value_type>(factory, m_storage.address()); + m_initialized = true ; + } + + // Constructs in-place using the given typed factory + template<class Expr> + void construct ( Expr&& factory, typed_in_place_factory_base const* ) + { + BOOST_STATIC_ASSERT ( ::boost::mpl::not_<is_reference_predicate>::value ) ; + factory.apply(m_storage.address()) ; + m_initialized = true ; + } + + template<class Expr> + void assign_expr_to_initialized ( Expr&& factory, in_place_factory_base const* tag ) + { + destroy(); + construct(factory,tag); + } + + // Constructs in-place using the given typed factory + template<class Expr> + void assign_expr_to_initialized ( Expr&& factory, typed_in_place_factory_base const* tag ) + { + destroy(); + construct(factory,tag); + } + +#else // Constructs in-place using the given factory template<class Expr> void construct ( Expr const& factory, in_place_factory_base const* ) @@ -382,7 +582,31 @@ class optional_base : public optional_tag } #endif - // Constructs using any expression implicitely convertible to the single argument +#endif + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Constructs using any expression implicitly convertible to the single argument + // of a one-argument T constructor. + // Converting constructions of optional<T> from optional<U> uses this function with + // 'Expr' being of type 'U' and relying on a converting constructor of T from U. + template<class Expr> + void construct ( Expr&& expr, void const* ) + { + new (m_storage.address()) internal_type(boost::forward<Expr>(expr)) ; + m_initialized = true ; + } + + // Assigns using a form any expression implicitly convertible to the single argument + // of a T's assignment operator. + // Converting assignments of optional<T> from optional<U> uses this function with + // 'Expr' being of type 'U' and relying on a converting assignment of T from U. + template<class Expr> + void assign_expr_to_initialized ( Expr&& expr, void const* ) + { + assign_value(boost::forward<Expr>(expr), is_reference_predicate()); + } +#else + // Constructs using any expression implicitly convertible to the single argument // of a one-argument T constructor. // Converting constructions of optional<T> from optional<U> uses this function with // 'Expr' being of type 'U' and relying on a converting constructor of T from U. @@ -393,7 +617,7 @@ class optional_base : public optional_tag m_initialized = true ; } - // Assigns using a form any expression implicitely convertible to the single argument + // Assigns using a form any expression implicitly convertible to the single argument // of a T's assignment operator. // Converting assignments of optional<T> from optional<U> uses this function with // 'Expr' being of type 'U' and relying on a converting assignment of T from U. @@ -403,6 +627,8 @@ class optional_base : public optional_tag assign_value(expr, is_reference_predicate()); } +#endif + #ifdef BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION // BCB5.64 (and probably lower versions) workaround. // The in-place factories are supported by means of catch-all constructors @@ -416,6 +642,20 @@ class optional_base : public optional_tag // For VC<=70 compilers this workaround dosen't work becasue the comnpiler issues and error // instead of choosing the wrong overload // +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Notice that 'Expr' will be optional<T> or optional<U> (but not optional_base<..>) + template<class Expr> + void construct ( Expr&& expr, optional_tag const* ) + { + if ( expr.is_initialized() ) + { + // An exception can be thrown here. + // It it happens, THIS will be left uninitialized. + new (m_storage.address()) internal_type(types::move(expr.get())) ; + m_initialized = true ; + } + } +#else // Notice that 'Expr' will be optional<T> or optional<U> (but not optional_base<..>) template<class Expr> void construct ( Expr const& expr, optional_tag const* ) @@ -429,9 +669,14 @@ class optional_base : public optional_tag } } #endif +#endif // defined BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION void assign_value ( argument_type val, is_not_reference_tag ) { get_impl() = val; } void assign_value ( argument_type val, is_reference_tag ) { construct(val); } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + void assign_value ( rval_reference_type val, is_not_reference_tag ) { get_impl() = static_cast<rval_reference_type>(val); } + void assign_value ( rval_reference_type val, is_reference_tag ) { construct( static_cast<rval_reference_type>(val) ); } +#endif void destroy() { @@ -439,8 +684,6 @@ class optional_base : public optional_tag destroy_impl(is_reference_predicate()) ; } - unspecified_bool_type safe_bool() const { return m_initialized ? &this_type::is_initialized : 0 ; } - reference_const_type get_impl() const { return dereference(get_object(), is_reference_predicate() ) ; } reference_type get_impl() { return dereference(get_object(), is_reference_predicate() ) ; } @@ -476,7 +719,7 @@ class optional_base : public optional_tag #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x581)) void destroy_impl ( is_not_reference_tag ) { get_ptr_impl()->internal_type::~internal_type() ; m_initialized = false ; } #else - void destroy_impl ( is_not_reference_tag ) { get_ptr_impl()->T::~T() ; m_initialized = false ; } + void destroy_impl ( is_not_reference_tag ) { get_ptr_impl()->~T() ; m_initialized = false ; } #endif void destroy_impl ( is_reference_tag ) { m_initialized = false ; } @@ -500,8 +743,6 @@ class optional : public optional_detail::optional_base<T> { typedef optional_detail::optional_base<T> base ; - typedef BOOST_DEDUCED_TYPENAME base::unspecified_bool_type unspecified_bool_type ; - public : typedef optional<T> this_type ; @@ -509,27 +750,37 @@ class optional : public optional_detail::optional_base<T> typedef BOOST_DEDUCED_TYPENAME base::value_type value_type ; typedef BOOST_DEDUCED_TYPENAME base::reference_type reference_type ; typedef BOOST_DEDUCED_TYPENAME base::reference_const_type reference_const_type ; +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + typedef BOOST_DEDUCED_TYPENAME base::rval_reference_type rval_reference_type ; + typedef BOOST_DEDUCED_TYPENAME base::reference_type_of_temporary_wrapper reference_type_of_temporary_wrapper ; +#endif typedef BOOST_DEDUCED_TYPENAME base::pointer_type pointer_type ; typedef BOOST_DEDUCED_TYPENAME base::pointer_const_type pointer_const_type ; typedef BOOST_DEDUCED_TYPENAME base::argument_type argument_type ; // Creates an optional<T> uninitialized. // No-throw - optional() : base() {} + optional() BOOST_NOEXCEPT : base() {} // Creates an optional<T> uninitialized. // No-throw - optional( none_t none_ ) : base(none_) {} + optional( none_t none_ ) BOOST_NOEXCEPT : base(none_) {} // Creates an optional<T> initialized with 'val'. // Can throw if T::T(T const&) does optional ( argument_type val ) : base(val) {} +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Creates an optional<T> initialized with 'move(val)'. + // Can throw if T::T(T &&) does + optional ( rval_reference_type val ) : base( boost::forward<T>(val) ) + {optional_detail::prevent_binding_rvalue_ref_to_optional_lvalue_ref<T, rval_reference_type>();} +#endif + // Creates an optional<T> initialized with 'val' IFF cond is true, otherwise creates an uninitialized optional. // Can throw if T::T(T const&) does optional ( bool cond, argument_type val ) : base(cond,val) {} -#ifndef BOOST_OPTIONAL_NO_CONVERTING_COPY_CTOR // NOTE: MSVC needs templated versions first // Creates a deep copy of another convertible optional<U> @@ -543,43 +794,94 @@ class optional : public optional_detail::optional_base<T> if ( rhs.is_initialized() ) this->construct(rhs.get()); } + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Creates a deep move of another convertible optional<U> + // Requires a valid conversion from U to T. + // Can throw if T::T(U&&) does + template<class U> + explicit optional ( optional<U> && rhs ) + : + base() + { + if ( rhs.is_initialized() ) + this->construct( boost::move(rhs.get()) ); + } #endif #ifndef BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT // Creates an optional<T> with an expression which can be either // (a) An instance of InPlaceFactory (i.e. in_place(a,b,...,n); // (b) An instance of TypedInPlaceFactory ( i.e. in_place<T>(a,b,...,n); - // (c) Any expression implicitely convertible to the single type + // (c) Any expression implicitly convertible to the single type // of a one-argument T's constructor. // (d*) Weak compilers (BCB) might also resolved Expr as optional<T> and optional<U> // even though explicit overloads are present for these. // Depending on the above some T ctor is called. - // Can throw is the resolved T ctor throws. + // Can throw if the resolved T ctor throws. +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + + + template<class Expr> + explicit optional ( Expr&& expr, + BOOST_DEDUCED_TYPENAME boost::disable_if_c< + (boost::is_base_of<optional_detail::optional_tag, BOOST_DEDUCED_TYPENAME boost::decay<Expr>::type>::value) || + boost::is_same<BOOST_DEDUCED_TYPENAME boost::decay<Expr>::type, none_t>::value >::type* = 0 + ) + : base(boost::forward<Expr>(expr),boost::addressof(expr)) + {optional_detail::prevent_binding_rvalue_ref_to_optional_lvalue_ref<T, Expr&&>();} + +#else template<class Expr> explicit optional ( Expr const& expr ) : base(expr,boost::addressof(expr)) {} -#endif +#endif // !defined BOOST_NO_CXX11_RVALUE_REFERENCES +#endif // !defined BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT // Creates a deep copy of another optional<T> // Can throw if T::T(T const&) does optional ( optional const& rhs ) : base( static_cast<base const&>(rhs) ) {} +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Creates a deep move of another optional<T> + // Can throw if T::T(T&&) does + optional ( optional && rhs ) + BOOST_NOEXCEPT_IF(::boost::is_nothrow_move_constructible<T>::value) + : base( boost::move(rhs) ) + {} + +#endif // No-throw (assuming T::~T() doesn't) ~optional() {} #if !defined(BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT) && !defined(BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION) // Assigns from an expression. See corresponding constructor. // Basic Guarantee: If the resolved T ctor throws, this is left UNINITIALIZED +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + + template<class Expr> + BOOST_DEDUCED_TYPENAME boost::disable_if_c< + boost::is_base_of<optional_detail::optional_tag, BOOST_DEDUCED_TYPENAME boost::decay<Expr>::type>::value || + boost::is_same<BOOST_DEDUCED_TYPENAME boost::decay<Expr>::type, none_t>::value, + optional& + >::type + operator= ( Expr&& expr ) + { + optional_detail::prevent_binding_rvalue_ref_to_optional_lvalue_ref<T, Expr&&>(); + this->assign_expr(boost::forward<Expr>(expr),boost::addressof(expr)); + return *this ; + } + +#else template<class Expr> optional& operator= ( Expr const& expr ) { this->assign_expr(expr,boost::addressof(expr)); return *this ; } -#endif - +#endif // !defined BOOST_NO_CXX11_RVALUE_REFERENCES +#endif // !defined(BOOST_OPTIONAL_NO_INPLACE_FACTORY_SUPPORT) && !defined(BOOST_OPTIONAL_WEAK_OVERLOAD_RESOLUTION) -#ifndef BOOST_OPTIONAL_NO_CONVERTING_ASSIGNMENT - // Assigns from another convertible optional<U> (converts && deep-copies the rhs value) + // Copy-assigns from another convertible optional<U> (converts && deep-copies the rhs value) // Requires a valid conversion from U to T. // Basic Guarantee: If T::T( U const& ) throws, this is left UNINITIALIZED template<class U> @@ -588,6 +890,17 @@ class optional : public optional_detail::optional_base<T> this->assign(rhs); return *this ; } + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Move-assigns from another convertible optional<U> (converts && deep-moves the rhs value) + // Requires a valid conversion from U to T. + // Basic Guarantee: If T::T( U && ) throws, this is left UNINITIALIZED + template<class U> + optional& operator= ( optional<U> && rhs ) + { + this->assign(boost::move(rhs)); + return *this ; + } #endif // Assigns from another optional<T> (deep-copies the rhs value) @@ -599,6 +912,16 @@ class optional : public optional_detail::optional_base<T> return *this ; } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Assigns from another optional<T> (deep-moves the rhs value) + optional& operator= ( optional && rhs ) + BOOST_NOEXCEPT_IF(::boost::is_nothrow_move_constructible<T>::value && ::boost::is_nothrow_move_assignable<T>::value) + { + this->assign( static_cast<base &&>(rhs) ) ; + return *this ; + } +#endif + // Assigns from a T (deep-copies the rhs value) // Basic Guarantee: If T::( T const& ) throws, this is left UNINITIALIZED optional& operator= ( argument_type val ) @@ -607,20 +930,58 @@ class optional : public optional_detail::optional_base<T> return *this ; } +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES + // Assigns from a T (deep-moves the rhs value) + optional& operator= ( rval_reference_type val ) + { + optional_detail::prevent_binding_rvalue_ref_to_optional_lvalue_ref<T, rval_reference_type>(); + this->assign( boost::move(val) ) ; + return *this ; + } +#endif + // Assigns from a "none" // Which destroys the current value, if any, leaving this UNINITIALIZED // No-throw (assuming T::~T() doesn't) - optional& operator= ( none_t none_ ) + optional& operator= ( none_t none_ ) BOOST_NOEXCEPT { this->assign( none_ ) ; return *this ; } + +#if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) && (!defined BOOST_NO_CXX11_VARIADIC_TEMPLATES) + // Constructs in-place + // upon exception *this is always uninitialized + template<class... Args> + void emplace ( Args&&... args ) + { + this->emplace_assign( boost::forward<Args>(args)... ); + } +#elif (!defined BOOST_NO_CXX11_RVALUE_REFERENCES) + template<class Arg> + void emplace ( Arg&& arg ) + { + this->emplace_assign( boost::forward<Arg>(arg) ); + } +#else + template<class Arg> + void emplace ( const Arg& arg ) + { + this->emplace_assign( arg ); + } + + template<class Arg> + void emplace ( Arg& arg ) + { + this->emplace_assign( arg ); + } +#endif void swap( optional & arg ) + BOOST_NOEXCEPT_IF(::boost::is_nothrow_move_constructible<T>::value && ::boost::is_nothrow_move_assignable<T>::value) { // allow for Koenig lookup - using boost::swap; - swap(*this, arg); + boost::swap(*this, arg); } @@ -643,17 +1004,139 @@ class optional : public optional_detail::optional_base<T> // Returns a reference to the value if this is initialized, otherwise, // the behaviour is UNDEFINED // No-throw +#ifndef BOOST_NO_CXX11_REF_QUALIFIERS + reference_const_type operator *() const& { return this->get() ; } + reference_type operator *() & { return this->get() ; } + reference_type_of_temporary_wrapper operator *() && { return boost::move(this->get()) ; } +#else reference_const_type operator *() const { return this->get() ; } reference_type operator *() { return this->get() ; } +#endif // !defined BOOST_NO_CXX11_REF_QUALIFIERS + +#ifndef BOOST_NO_CXX11_REF_QUALIFIERS + reference_const_type value() const& + { + if (this->is_initialized()) + return this->get() ; + else + throw_exception(bad_optional_access()); + } + + reference_type value() & + { + if (this->is_initialized()) + return this->get() ; + else + throw_exception(bad_optional_access()); + } + + reference_type_of_temporary_wrapper value() && + { + if (this->is_initialized()) + return boost::move(this->get()) ; + else + throw_exception(bad_optional_access()); + } - // implicit conversion to "bool" - // No-throw - operator unspecified_bool_type() const { return this->safe_bool() ; } +#else + reference_const_type value() const + { + if (this->is_initialized()) + return this->get() ; + else + throw_exception(bad_optional_access()); + } + + reference_type value() + { + if (this->is_initialized()) + return this->get() ; + else + throw_exception(bad_optional_access()); + } +#endif - // This is provided for those compilers which don't like the conversion to bool - // on some contexts. - bool operator!() const { return !this->is_initialized() ; } + +#ifndef BOOST_NO_CXX11_REF_QUALIFIERS + template <class U> + value_type value_or ( U&& v ) const& + { + if (this->is_initialized()) + return get(); + else + return boost::forward<U>(v); + } + + template <class U> + value_type value_or ( U&& v ) && + { + if (this->is_initialized()) + return boost::move(get()); + else + return boost::forward<U>(v); + } +#elif !defined BOOST_NO_CXX11_RVALUE_REFERENCES + template <class U> + value_type value_or ( U&& v ) const + { + if (this->is_initialized()) + return get(); + else + return boost::forward<U>(v); + } +#else + template <class U> + value_type value_or ( U const& v ) const + { + if (this->is_initialized()) + return get(); + else + return v; + } +#endif + + +#ifndef BOOST_NO_CXX11_REF_QUALIFIERS + template <typename F> + value_type value_or_eval ( F f ) const& + { + if (this->is_initialized()) + return get(); + else + return f(); + } + + template <typename F> + value_type value_or_eval ( F f ) && + { + if (this->is_initialized()) + return boost::move(get()); + else + return f(); + } +#else + template <typename F> + value_type value_or_eval ( F f ) const + { + if (this->is_initialized()) + return get(); + else + return f(); + } +#endif + + bool operator!() const BOOST_NOEXCEPT { return !this->is_initialized() ; } + + BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT() +} ; + +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES +template<class T> +class optional<T&&> +{ + BOOST_STATIC_ASSERT_MSG(sizeof(T) == 0, "Optional rvalue references are illegal."); } ; +#endif // Returns optional<T>(v) template<class T> @@ -743,6 +1226,11 @@ get_pointer ( optional<T>& opt ) return opt.get_ptr() ; } +// Forward declaration to prevent operator safe-bool from being used. +template<class CharType, class CharTrait, class T> +std::basic_ostream<CharType, CharTrait>& +operator<<(std::basic_ostream<CharType, CharTrait>& out, optional<T> const& v); + // optional's relational operators ( ==, !=, <, >, <=, >= ) have deep-semantics (compare values). // WARNING: This is UNLIKE pointers. Use equal_pointees()/less_pointess() in generic code instead. @@ -856,8 +1344,8 @@ bool operator >= ( T const& x, optional<T> const& y ) template<class T> inline -bool operator == ( optional<T> const& x, none_t ) -{ return equal_pointees(x, optional<T>() ); } +bool operator == ( optional<T> const& x, none_t ) BOOST_NOEXCEPT +{ return !x; } template<class T> inline @@ -866,8 +1354,8 @@ bool operator < ( optional<T> const& x, none_t ) template<class T> inline -bool operator != ( optional<T> const& x, none_t y ) -{ return !( x == y ) ; } +bool operator != ( optional<T> const& x, none_t ) BOOST_NOEXCEPT +{ return bool(x); } template<class T> inline @@ -890,8 +1378,8 @@ bool operator >= ( optional<T> const& x, none_t y ) template<class T> inline -bool operator == ( none_t , optional<T> const& y ) -{ return equal_pointees(optional<T>() ,y); } +bool operator == ( none_t , optional<T> const& y ) BOOST_NOEXCEPT +{ return !y; } template<class T> inline @@ -900,8 +1388,8 @@ bool operator < ( none_t , optional<T> const& y ) template<class T> inline -bool operator != ( none_t x, optional<T> const& y ) -{ return !( x == y ) ; } +bool operator != ( none_t, optional<T> const& y ) BOOST_NOEXCEPT +{ return bool(y); } template<class T> inline @@ -949,6 +1437,37 @@ struct swap_selector<true> } }; +#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES +template<> +struct swap_selector<false> +{ + template<class T> + static void optional_swap ( optional<T>& x, optional<T>& y ) + //BOOST_NOEXCEPT_IF(::boost::is_nothrow_move_constructible<T>::value && BOOST_NOEXCEPT_EXPR(boost::swap(*x, *y))) + { + if(x) + { + if (y) + { + boost::swap(*x, *y); + } + else + { + y = boost::move(*x); + x = boost::none; + } + } + else + { + if (y) + { + x = boost::move(*y); + y = boost::none; + } + } + } +}; +#else template<> struct swap_selector<false> { @@ -975,6 +1494,7 @@ struct swap_selector<false> } } }; +#endif // !defined BOOST_NO_CXX11_RVALUE_REFERENCES } // namespace optional_detail @@ -982,6 +1502,7 @@ template<class T> struct optional_swap_should_use_default_constructor : has_nothrow_default_constructor<T> {} ; template<class T> inline void swap ( optional<T>& x, optional<T>& y ) + //BOOST_NOEXCEPT_IF(::boost::is_nothrow_move_constructible<T>::value && BOOST_NOEXCEPT_EXPR(boost::swap(*x, *y))) { optional_detail::swap_selector<optional_swap_should_use_default_constructor<T>::value>::optional_swap(x, y); } diff --git a/3rdParty/Boost/src/boost/optional/optional_fwd.hpp b/3rdParty/Boost/src/boost/optional/optional_fwd.hpp index 388cc1c..fb59682 100644 --- a/3rdParty/Boost/src/boost/optional/optional_fwd.hpp +++ b/3rdParty/Boost/src/boost/optional/optional_fwd.hpp @@ -11,15 +11,16 @@ // // Revisions: // 10 May 2008 (added swap related forward declaration) Niels Dekker -// +// #ifndef BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP #define BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP + namespace boost { template<class T> class optional ; -template<class T> void swap ( optional<T>& , optional<T>& ) ; +template<class T> void swap ( optional<T>& , optional<T>& ); template<class T> struct optional_swap_should_use_default_constructor ; |