Explain call by value and call by reference, Computer Engineering

Assignment Help:

Call by value and Call by reference

Call by value means sending the values of the arguments- The value of each of the original arguments in the calling function is copied into corresponding formal arguments of the called function. The modification made to the formal arguments has no effect on the values of actual arguments in the calling function.  This method of passing arguments is called call by value verified by swap (int x, int y) function in the following example. 

Call by reference means sending the addresses of the arguments- the addresses of actual arguments in the calling function are copied into formal arguments of the called function. Using these addresses we are really working on actual argument so changes will be reflected in the calling function.

 


Related Discussions:- Explain call by value and call by reference

2 way staircase switch-truth table logic equation & circuit, A staircase li...

A staircase light is controlled by two switches one at the top of the stairs and another at the bottom of stairs a. Make a truth table for this system. b. Write the lo

Explain the working of a 4-bit SISO shift register, Using D-Flip flops and ...

Using D-Flip flops and waveforms explain the working of a 4-bit SISO shift register. Ans. Serial In-Serail Out Shift Register: Fig.(a) demonstrates a 4 bit serial in-serial out

Which device consume minimum power, Which device consume minimum power ? ...

Which device consume minimum power ? Ans. Minimum power consume by CMOS as in its one p-MOS and one n-MOS transistors are connected in complimentary mode, so one device is ON a

How the temperature effecting the delays in a chip, How the temperature eff...

How the temperature effecting the delays in a chip The delays are directly proportional to the temperature. As the temperature enhances the delays are enhances and chip wil

Explain macro definition and call, Explain Macro definition and call. ...

Explain Macro definition and call. Macro: The assembly language programming frequently finds this necessary to repeat certain piece of code several times during the course of

Explain the architectural framework for electronic commerce, Explain the Ar...

Explain the Architectural framework for electronic commerce. An application independent framework to categorize service interaction relies on four basic dimensions   1.  Ser

What is paging unit, Paging Unit Paging mechanism functions with 4K -...

Paging Unit Paging mechanism functions with 4K - byte memory pages or with a new extension available to Pentium with 4M byte-memory pages. In the Pentium, with the new 4M-byt

Explain bitwise-inclusive-or operato, Bitwise-Inclusive-OR Operator: i...

Bitwise-Inclusive-OR Operator: inclusive-OR-expression : exclusive-OR-expression inclusive-OR-expression | exclusive-OR-expression The  bitwise-inclusive-OR  operator

What is the advantages for linux, What is the advantages for Linux? ...

What is the advantages for Linux? Runs on old Hardware Low-Cost Linux is fully customizable in all its components Powerful Linux runs on low-end, cheap hardware

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd