How do i allocate multidimensional arrays by new? , C/C++ Programming

Assignment Help:

Can I free() pointers allocated  along with new? Can I delete pointers allocated along with malloc()?

A: No.

It is completely legal, moral, and wholesome to employ malloc() and delete in the same program, or to employ new and free() in the same program. However it is illegal, immoral, & despicable to call free() along with a pointer allocated though new, or to call delete on a pointer allocated through malloc().

Occasionally people tell that it works OK for them on machine X and compiler Y. Just because they don't notice bad symptoms in simple test case doesn't mean this won't crash in the field. Even if they know this won't crash on their specific compiler doesn't mean this will work carefully on another compiler, platform, or even another version of the simialr compiler.

Occasionally people say, "But I'm just working with an array of char." Though do not mix malloc() and delete on the similar pointer, or new & free() on the similar pointer! If you allocated through p = new char[n], you have to use delete[] p; you do not have to use free(p). Or if you allocated via p = malloc(n), you have to use free(p); you should not employ delete[] p or delete p! Mixing these up could cause a catastrophic failure at runtime if code was ported to a new compiler, a new machine or even a new version of the similar compiler

 


Related Discussions:- How do i allocate multidimensional arrays by new?

Should i employ null or 0?, A: In C++, the definition of NULL is 0, thus th...

A: In C++, the definition of NULL is 0, thus there is only an aesthetic difference. I prefer to ignore macros, so I employ 0. Another difficulty with NULL is that people sometimes

Inheritance, example of program to ad two numbers

example of program to ad two numbers

.Change to palindrome, A palindrome is a string that reads the same from bo...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Compiling/ installing openvpn client within an ip camera, Project Descripti...

Project Description: I want someone with experience on adding/compiling/installing the OpenVPN client software within an IP network camera's embedded operating system. Either if

Online poker web application, Project Description:  LOOKING TO DEVELOP ...

Project Description:  LOOKING TO DEVELOP A ONLINE POKER Web Application. WEBSITE WILL BE DEVELOPED OVER THE NEXT 6 MONTHS Duration & WILL REQUIRE FULL SOFTWARE CODING OF WEB

CptS 121 Program Development & Design program design in C, Write a program...

Write a program that performs character processing on 10 characters read in from a file, and writes the results to output files. Do NOT use loops or arrays to solve this problem. N

What are the precautions with function overloading, Precautions with functi...

Precautions with function overloading Function overloading is a boon to designers, since dissimilar names for same functions need not be thought of, which often is a cumbersome

Class & objects, how objects are initialized dynamically?

how objects are initialized dynamically?

Pebble merchant, There is a pebble merchant. He sells the pebbles, that are...

There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing tha

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