When should i use references, and when ought to use pointers, C/C++ Programming

Assignment Help:

A: Use references when you can use, and use pointers when you have to.

References are generally preferred over pointers whenever you don't require "reseating". Usually this means that references are most useful in class's public interface. Typically references appear on the skin of an object, & pointers on the inside.

The exception to the above is where a function's parameter or return value require a "sentinel" reference a reference which does not refer to an object. Usually this is best done by returning/taking a pointer, & giving the NULL pointer this special significance (references must always alias objects, not dereferenced NULL pointer).

Note: Old line C programmers sometimes don't like references as they provide reference semantics which isn't explicit in the caller's code. However, after some C++ experience, one quickly realizes it is a form of information hiding, which is an asset instead of a liability. E.g., programmers must write code in the language of the problem instead of the language of the machine.

 


Related Discussions:- When should i use references, and when ought to use pointers

#padovan string in c , #padovan string in java   program in java /...

#padovan string in java   program in java // aakash , suraj , prem sasi kumar kamaraj college program 1 : package test.padovanstring; public class PadovanStrin

How to create a data file, How to Create A Data File? A data file shoul...

How to Create A Data File? A data file should be created before it can be processed. A stream-oriented data file is able to be created in two ways. One is to create the file st

Define scope rules of c program - computer programming, Define Scope Rules ...

Define Scope Rules of C program - Computer Programming? The fundamental rule of scope is that identifiers are accessible only within the block in which they are declared and th

#psuedocode, Create a pseudocode in getting Calendar Quarter. The program s...

Create a pseudocode in getting Calendar Quarter. The program should identify which quarter falls the given date. Note: Consider the date format DDMMYYYY.

Computer programing, pls give me answer 01110-00110 in 2''s comlpiment in d...

pls give me answer 01110-00110 in 2''s comlpiment in detail

Coding, padovan series with words

padovan series with words

Abstract array - c program, Abstract array - c program: AbstractArray:...

Abstract array - c program: AbstractArray::AbstractArray( int anUpper, int aLower, sizeType aDelta ) {     PRECONDITION( anUpper >= aLower );     lastElementIndex = a

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