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?

Inline functions, Inline functions, C++ provides inline functions to help r...

Inline functions, C++ provides inline functions to help reduce function_call overhead especially for small functions. The qualifier inline before function's return type in the f

What is a command line argument and what is its use, Question 1) What are ...

Question 1) What are the commonly used input/output functions in C? Question 2) What is the difference between function declaration and function definition? Write a recursive

Computer graphics, .Develop a two dimensional interactive game with the fol...

.Develop a two dimensional interactive game with the following features: 1. Use OpenGL (any version you find convenient) 2. The game can either be two player or one player with the

201 it, overloadstream insertion opertator to display the data of object on...

overloadstream insertion opertator to display the data of object on the console

C program for bernoulli''s equation, i need a detailed c program to explain...

i need a detailed c program to explain the parameters of bernoulli''s equation..

What is object variable, The definition of an object(variable ): We can...

The definition of an object(variable ): We can explain a variable(set memory to the variable) in the following ways. e.g. double salary; int month; When more than o

Explain protected and public in c++, Explain protected, public, private in ...

Explain protected, public, private in C++? These are three access spaecifiers in C++. - Public - Here data members and functions are accessible outside the class. - Pr

Application for tag in the forest game, Your program should use the Free Pa...

Your program should use the Free Pascal compiler or the Lazarus IDE described in CSC 540. When you hand in your assignment to the digital dropbox, it should be a .PAS file, not zip

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