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

I want to convert atmel c code into arduino mppt, Normal 0 fals...

Normal 0 false false false EN-US X-NONE X-NONE

Area under curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve betw

Developing programs in the c++ programming language., I. COURSE DESCRIPTION...

I. COURSE DESCRIPTION Develops a working knowledge of object-oriented concepts in areas of classes, inheritance, data structures, error handling, templates and file processing.

Explain syntax rules for writing a destructor function, Syntax rules for wr...

Syntax rules for writing a destructor function Its name is the similar as that of the class to which it belongs, except that the first character of the name is the symbol t

C program to convert time in 24 hour format to 12., Aim: To implement a pr...

Aim: To implement a program to convert time in 24 hour format to 12 hour format. Code:                       #include #include #include class time24 {

Explain different implementations of oop, Different implementations of OOP ...

Different implementations of OOP Object-oriented programming is not mainly concerned with the details of the program operation. Instead, it deals with the overall design of the

C++, Write a program to find the area under the curve y = f(x) between x = ...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Padovan string, A Padovan string P(n) for a natural number n is defined as:...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t

Structures of flowchart, Ask Draw a flowchart that print all even numbers f...

Ask Draw a flowchart that print all even numbers from 2 until 10

Write a code to implement the base and derived class, Study the given hiera...

Study the given hierarchical class diagram and additional information, and answer the questions that follow: Sale Company: string unitPrice: double

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