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3 years ago

If you define a destructor, are you required to define an operator '=' and a copy constructor?

Computers and Technology

1 answer:

Reil [10]3 years ago

7 0

a. Yes, that is the Rule of Three.

<u>Explanation:</u>

A destructor can be defined as a special member function of the class that is used to deallocate the memory assigned to the data members of the class after the created objects of the class go out of scope. If we define a destructor or a copy constructor or an operator "=", we need to include the definition of the other two in the class according to the rule of three.

This is because the compiler copies and copy assign the objects of the class in various situations and if these functions are not present, they are implicitly created and called.

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Question Mode Matching Question Match the following description with the appropriate programming language generation. 1GL 1GL dr

erastovalidia [21]

Answer:

1GL: Machine language. Represented by a series of 1s and 0s.

2GL: Assembly language. An assembler converts 2GL into machine language.

3GL: High-level programming language. Uses a compiler to convert into machine language.

4GL: Specifically designed for creating database management programs.

5GL: Extremely advanced. Uses statements (scripts) rather than algorithms.

Explanation:

Programming languages started as a series of binary digits (i.e. 0's and 1'). This generation of language is referred to as the first generation.

However, the machine language were difficult to read by human, so mnemonics were created (i.e. assembly language). This language uses symbolic codes such as ADD for addition, etc. This is the second generation

The third generation are the high level languages that uses languages that can be easily understood by human, e.g. + means plus. However, the language must be translated; hence the need for a compiler or interpreter, as the case may be.

The fourth and fifth generations are extensions of the third generation languages. The fourth were created to connect to DBMS while the fifth are more advanced.

4 0

3 years ago

Match the careers with the career clusters.

creativ13 [48]

<h2>Answer and Explanation:</h2>

The picture shows the right careers with their respective career clusters.

4 0

3 years ago

Read 2 more answers

What is the purpose of saving code snippets?

Brrunno [24]

Answer:

A stores code for later re-use

Explanation:

To find - What is the purpose of saving code snippets?

Solution -

Code Snippet" is used to describe a small portion of re-usable source code, machine code, or text.

They allow a programmer to avoid typing repetitive code during the course of routine programming.

So,

The correct option is - A stores code for later re-use

4 0

3 years ago

Suppose that the content of the input file is: 14 13 26 8 -11 36 0 -1. What is the output of the following code? ifstream myInfi

tester [92]

I do not know, i really hope you dont fail!!!!!!!!!

3 0

3 years ago

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The second version of css, css2, was introduced in 1998, expanding the language to provide styles to _________.

Evgen [1.6K]

Answer:

Structured Documents

Explanation:

Structured Documents consist of hierarchy in the files. They may include data files. HTML (Hyper-text markup language) documents and XML (Extensible Markup Language) applications are the examples of Structured Documents.

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3 years ago