Definition

Supports all classes in the xtd class hierarchy and provides low-level services to derived classes. This is the ultimate base class of all classes in the xtd. It is the root of the type hierarchy.

class core_export_ object

Namespace: xtd

Library: xtd.core

Examples: The following example defines a point type derived from the object class and victuals many of the virtual methods of the object class. In addition, the example shows how to call many of the static and instance methods of the object class.

Examples:: boxing.cpp, delegate.cpp, event.cpp, format_class_object.cpp, lock.cpp, and send_message_to_form.cpp.

Constructors
	object ()=default
	Create a new instance of the ultimate base class object. More...

Methods
bool	equals (const object &obj) const noexcept
	Determines whether the specified object is equal to the current object. More...

virtual size_t	get_hash_code () const noexcept
	Serves as a hash function for a particular type. More...

virtual type_object	get_type () const noexcept
	Gets the type of the current instance. More...

template<typename object_t >
std::unique_ptr< object_t >	memberwise_clone () const noexcept
	Creates a shallow copy of the current object. More...

virtual xtd::ustring	to_string () const noexcept
	Returns a sxd::ustring that represents the current object. More...

static bool	equals (const object &object_a, const object &object_b) noexcept
	Determines whether the specified object instances are considered equal. More...

static bool	reference_equals (const object &object_a, const object &object_b) noexcept
	Determines whether the specified object instances are the same instance. More...

Constructor & Destructor Documentation

◆ object()

xtd::object::object ( )

default

Create a new instance of the ultimate base class object.

Remarks: This constructor is called by constructors in derived classes, but it can also be used to directly create an instance of the object class.

Member Function Documentation

◆ equals() [1/2]

bool xtd::object::equals ( const object & obj ) const

noexcept

Determines whether the specified object is equal to the current object.

Parameters

obj	The object to compare with the current object.

Returns: true if the specified object is equal to the current object. otherwise, false.

Examples: The following code example compares the current instance with another object.

◆ equals() [2/2]

static bool xtd::object::equals	(	const object &	object_a,
		const object &	object_b
	)

staticnoexcept

Determines whether the specified object instances are considered equal.

Parameters

object_a	The first object to compare.
object_b	The second object to compare.

Returns: true if object_a is the same instance as object_b or if both are null references or if object_a(object_b) returns true. otherwise, false.

Examples: The following code example compares different objects.

◆ get_hash_code()

virtual size_t xtd::object::get_hash_code ( ) const

virtualnoexcept

Serves as a hash function for a particular type.

Returns: size_t A hash code for the current object.

Reimplemented in xtd::ustring.

◆ get_type()

virtual type_object xtd::object::get_type ( ) const

virtualnoexcept

Gets the type of the current instance.

Returns: The type instance that represents the exact runtime type of the current instance.

Examples: The following code example demonstrates that GetType returns the runtime type of the current instance.

Examples:: monitor.cpp.

◆ memberwise_clone()

template<typename object_t >

std::unique_ptr<object_t> xtd::object::memberwise_clone ( ) const

inlinenoexcept

Creates a shallow copy of the current object.

Returns: A shallow copy of the current object.

Examples: The following code example shows how to copy an instance of a class using memberwise_clone.

◆ reference_equals()

static bool xtd::object::reference_equals	(	const object &	object_a,
		const object &	object_b
	)

staticnoexcept

Determines whether the specified object instances are the same instance.

Parameters

object_a	The first object to compare.
object_b	The second object to compare.

Returns: true if object_a is the same instance as object_b or if both are null references; otherwise, false.

Examples: The following code example uses reference_equals to determine if two objects are the same instance.

◆ to_string()

virtual xtd::ustring xtd::object::to_string ( ) const

virtualnoexcept

Returns a sxd::ustring that represents the current object.

Returns: A string that represents the current object.

Examples: The following code example demonstrates what to_string returns.

Reimplemented in xtd::drawing::graphics, xtd::ustring, xtd::drawing::color, xtd::forms::control, xtd::date_time, xtd::uri, xtd::io::file_system_info, xtd::time_span, xtd::forms::month_calendar, xtd::drawing::drawing_2d::graphics_path, xtd::environment::xtd_library, xtd::diagnostics::stack_trace, xtd::drawing::point, xtd::forms::menu_item, xtd::drawing::font, xtd::drawing::rectangle, xtd::net::ip_address, xtd::drawing::rectangle_f, xtd::forms::tool_bar_button, xtd::forms::file_dialog, xtd::forms::status_bar_panel, xtd::version, xtd::drawing::drawing_2d::matrix, xtd::drawing::pen, xtd::drawing::imaging::image_format, xtd::diagnostics::stack_frame, xtd::operating_system, xtd::drawing::icon, xtd::forms::progress_bar, xtd::forms::create_params, xtd::guid, xtd::forms::style_sheets::background_image, xtd::io::drive_info, xtd::drawing::point_f, xtd::forms::horizontal_control_layout_style, xtd::forms::vertical_control_layout_style, xtd::system_exception, xtd::forms::cursor, xtd::forms::track_bar, xtd::forms::numeric_up_down, xtd::forms::menu, xtd::forms::emoticon, xtd::forms::padding, xtd::enum_object< enum_t >, xtd::forms::style_sheets::length, xtd::threading::thread_local_object< value_t >, xtd::drawing::font_family, xtd::forms::radio_button, xtd::forms::style_sheets::lengths, xtd::drawing::size, xtd::forms::style_sheets::theme, xtd::box< type_t >, xtd::forms::message, xtd::drawing::size_f, xtd::forms::up_down_button, xtd::forms::country, xtd::forms::control_layout_style, xtd::distribution, xtd::cpp_language, xtd::forms::list_control::item, xtd::net::ip_end_point, xtd::net::socket_address, xtd::forms::renderer, xtd::compiler, xtd::forms::selection_range, xtd::forms::domain_up_down::item, xtd::forms::link_area, xtd::target_type, xtd::net::dns_end_point, xtd::processor, xtd::type_object, xtd::toolkit, xtd::web::css::property, xtd::drawing::brush, xtd::net::end_point, and xtd::io::string_writer.

Examples:: boxing.cpp.

The documentation for this class was generated from the following file:

xtd.core/include/xtd/object.h

Definition

Constructors

Methods

Constructor & Destructor Documentation

◆ object()

Member Function Documentation

◆ equals() [1/2]

◆ equals() [2/2]

◆ get_hash_code()

◆ get_type()

◆ memberwise_clone()

◆ reference_equals()

◆ to_string()