Definitions for copy constructor
copy con·struc·tor

WiktionaryRate this definition:0.0 / 0 votes

1. copy constructornoun

   A constructor that takes an existing instance as a parameter and copies its values.

WikipediaRate this definition:0.0 / 0 votes

1. copy constructor

   In class-based, object-oriented programming, a constructor (abbreviation: ctor) is a special type of subroutine called to create an object. It prepares the new object for use, often accepting arguments that the constructor uses to set required member variables. A constructor resembles an instance method, but it differs from a method in that it has no explicit return type, it is not implicitly inherited and it usually has different rules for scope modifiers. Constructors often have the same name as the declaring class. They have the task of initializing the object's data members and of establishing the invariant of the class, failing if the invariant is invalid. A properly written constructor leaves the resulting object in a valid state. Immutable objects must be initialized in a constructor. Most languages allow overloading the constructor in that there can be more than one constructor for a class, with differing parameters. Some languages take consideration of some special types of constructors. Constructors, which concretely use a single class to create objects and return a new instance of the class, are abstracted by factories, which also create objects but can do so in various ways, using multiple classes or different allocation schemes such as an object pool.

WikidataRate this definition:0.0 / 0 votes

1. Copy constructor

   A copy constructor is a special constructor in the C++ programming language for creating a new object as a copy of an existing object. The first argument of such a constructor is a reference to an object of the same type as is being constructed, which might be followed by parameters of any type. Normally the compiler automatically creates a copy constructor for each class but for special cases the programmer creates the copy constructor, known as a user-defined copy constructor. In such cases, the compiler does not create one. Hence, there is always one copy constructor that is either defined by the user or by the system. A user-defined copy constructor is generally needed when an object owns pointers or non-shareable references, such as to a file, in which case a destructor and an assignment operator should also be written.

How to pronounce copy constructor?

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How to say copy constructor in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of copy constructor in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of copy constructor in Pythagorean Numerology is: 9

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Copy_Constructor
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Copy_Constructor
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=copy constructor