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

Explain about the data logging, Data logging  This technique involves ...

Data logging  This technique involves collecting data automatically using sensors; frequently used when doing scientific experiments or monitoring a system.

Show the process management for parallel virtual machine, Q. Show the Proce...

Q. Show the Process Management for parallel virtual machine? Process Management  int pvm_mytid( void ) Returns the tid of the calling process. Tid values les

Differences between flexgrid control and dbgrid control, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain about the prepurchase interaction activity, Explain about the Prepu...

Explain about the Prepurchase Interaction activity. Prepurchase Interaction: This interaction for consumers comprises three activities: • Product or service search and di

Cgi programming, For this assignment you should construct a comprehensive w...

For this assignment you should construct a comprehensive web site for Dangar Winery of Puddledock Road Armidale, makers of fine table wines and ports since 1983. Chief winemaker, A

Credit line, The Credit Line The Credit Line is a set of informational f...

The Credit Line The Credit Line is a set of informational facts usually found below or beside a picture of a work of art. Should the picture appear in a book, magazine, poster,

List-processing without using suppress-dialog, What happens if we use Leave...

What happens if we use Leave to list-processing without using Suppress-Dialog? If we don't use Suppress-Dialog to next screen will be viewed but as empty, when the user presse

Object oriented systems analysis and design, Analysis and design form the b...

Analysis and design form the basis on any significant software artifact. Analysis is critical in terms of making sure that the final artifact actually meets user requirements (ie b

What is circular shift, What is Circular shift The circular shift is al...

What is Circular shift The circular shift is also called as rotate operation. It circulates bits of the register around two ends and there is no loss of information. This is do

Explain cgi standard, Explain CGI standard. The CGI Standard: Techno...

Explain CGI standard. The CGI Standard: Technology utilized for building dynamic web documents is termed as Common Gateway Interface (CGI). The CGI standard gives how a serv

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