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Run-time type information, the Glossary

Index Run-time type information

In computer programming, run-time type information or run-time type identification (RTTI) is a feature of some programming languages (such as C++, Object Pascal, and Ada) that exposes information about an object's data type at runtime.[1]

Table of Contents

  1. 31 relations: Ada (programming language), Bjarne Stroustrup, C (programming language), C++, Class (computer programming), Class hierarchy, Data type, Delphi (software), Downcasting, Exception handling, Function (computer programming), Inheritance (object-oriented programming), Java (programming language), Null pointer, Object (computer science), Object Pascal, Pointer (computer programming), Polymorphism (computer science), Reference (C++), Reference (computer science), Reflective programming, Reserved word, Run-time type information, Static cast, Template (C++), Time complexity, Type conversion, Type inference, Type introspection, Typeof, Virtual function.

  2. Class (computer programming)
  3. Programming language comparisons

Ada (programming language)

Ada is a structured, statically typed, imperative, and object-oriented high-level programming language, inspired by Pascal and other languages.

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Bjarne Stroustrup

Bjarne Stroustrup (born 30 December 1950) is a Danish computer scientist, known for the development of the C++ programming language. Run-time type information and Bjarne Stroustrup are C++.

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C (programming language)

C (pronounced – like the letter c) is a general-purpose programming language.

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C++

C++ (pronounced "C plus plus" and sometimes abbreviated as CPP) is a high-level, general-purpose programming language created by Danish computer scientist Bjarne Stroustrup.

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Class (computer programming)

In object-oriented programming, a class defines the shared aspects of objects created from the class.

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Class hierarchy

A class hierarchy or inheritance tree in computer science is a classification of object types, denoting objects as the instantiations of classes (class is like a blueprint, the object is what is built from that blueprint) inter-relating the various classes by relationships such as "inherits", "extends", "is an abstraction of", "an interface definition". Run-time type information and class hierarchy are class (computer programming).

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Data type

In computer science and computer programming, a data type (or simply type) is a collection or grouping of data values, usually specified by a set of possible values, a set of allowed operations on these values, and/or a representation of these values as machine types. Run-time type information and data type are data types.

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Delphi (software)

Delphi is a general-purpose programming language and a software product that uses the Delphi dialect of the Object Pascal programming language and provides an integrated development environment (IDE) for rapid application development of desktop, mobile, web, and console software, currently developed and maintained by Embarcadero Technologies.

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Downcasting

In class-based programming, downcasting, or type refinement, is the act of casting a base or parent class reference, to a more restricted derived class reference. Run-time type information and downcasting are class (computer programming).

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Exception handling

In computing and computer programming, exception handling is the process of responding to the occurrence of exceptions – anomalous or exceptional conditions requiring special processing – during the execution of a program.

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Function (computer programming)

In computer programming, a function, procedure, method, subroutine, routine, or subprogram is a callable unit of software logic that has a well-defined interface and behavior and can be invoked multiple times.

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Inheritance (object-oriented programming)

In object-oriented programming, inheritance is the mechanism of basing an object or class upon another object (prototype-based inheritance) or class (class-based inheritance), retaining similar implementation.

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Java (programming language)

Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.

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Null pointer

In computing, a null pointer or null reference is a value saved for indicating that the pointer or reference does not refer to a valid object.

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Object (computer science)

In computer science, an object is a programming element that has state, has associated operations and is accessed via an identifier. Run-time type information and object (computer science) are data types.

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Object Pascal

Object Pascal is an extension to the programming language Pascal that provides object-oriented programming (OOP) features such as classes and methods.

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Pointer (computer programming)

In computer science, a pointer is an object in many programming languages that stores a memory address.

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Polymorphism (computer science)

In programming language theory and type theory, polymorphism is the use of a single symbol to represent multiple different types. Run-time type information and polymorphism (computer science) are data types.

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Reference (C++)

In the C++ programming language, a reference is a simple reference datatype that is less powerful but safer than the pointer type inherited from C. The name C++ reference may cause confusion, as in computer science a reference is a general concept datatype, with pointers and C++ references being specific reference datatype implementations. Run-time type information and reference (C++) are C++.

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Reference (computer science)

In computer programming, a reference is a value that enables a program to indirectly access a particular datum, such as a variable's value or a record, in the computer's memory or in some other storage device. Run-time type information and reference (computer science) are data types.

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Reflective programming

In computer science, reflective programming or reflection is the ability of a process to examine, introspect, and modify its own structure and behavior. Run-time type information and reflective programming are programming language comparisons.

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Reserved word

In a computer language, a reserved word (also known as a reserved identifier) is a word that cannot be used as an identifier, such as the name of a variable, function, or label – it is "reserved from use".

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Run-time type information

In computer programming, run-time type information or run-time type identification (RTTI) is a feature of some programming languages (such as C++, Object Pascal, and Ada) that exposes information about an object's data type at runtime. Run-time type information and run-time type information are C++, class (computer programming), data types and programming language comparisons.

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Static cast

In the C++ programming language, static_cast is an operator that performs an explicit type conversion. Run-time type information and static cast are C++.

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Template (C++)

Templates are a feature of the C++ programming language that allows functions and classes to operate with generic types. Run-time type information and Template (C++) are C++.

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Time complexity

In theoretical computer science, the time complexity is the computational complexity that describes the amount of computer time it takes to run an algorithm.

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Type conversion

In computer science, type conversion, type casting, type coercion, and type juggling are different ways of changing an expression from one data type to another. Run-time type information and type conversion are data types.

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Type inference

Type inference, sometimes called type reconstruction, refers to the automatic detection of the type of an expression in a formal language.

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Type introspection

In computing, type introspection is the ability of a program to examine the type or properties of an object at runtime. Run-time type information and type introspection are programming language comparisons.

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Typeof

typeof, alternately also typeOf, and TypeOf, is an operator provided by several programming languages to determine the data type of a variable.

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Virtual function

In object-oriented programming such as is often used in C++ and Object Pascal, a virtual function or virtual method is an inheritable and overridable function or method that is dispatched dynamically. Run-time type information and virtual function are C++.

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See also

Class (computer programming)

Programming language comparisons

References

[1] https://en.wikipedia.org/wiki/Run-time_type_information

Also known as Dynamic cast, Dynamic casting, Java.lang.ClassCastException, RTTI, Run Time Type Information, RunTime Type Information, Runtime type identification, Type info, Typeid.