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?

C and Data structure, Implement multiple stacks in a single dimensional arr...

Implement multiple stacks in a single dimensional array using c.

Define the stream oriented data files, Define the Stream Oriented Data File...

Define the Stream Oriented Data Files? There are two dissimilar types of data files called stream-oriented (or standard) data files and system-oriented (or low-level) data file

Flight Departure in C, I really have a hard time analyzing how to write a c...

I really have a hard time analyzing how to write a code in C. It''s all bout Time Departure and we must used a 24 hour clock. Can u help me?

Program for manage the tasks of a robot, Consider a group of n robots, numb...

Consider a group of n robots, numbered R2D1 through R2Dn, and m tasks, numbered 1 through m. Tasks can be different and robots are specialized, hence a given robot can only perform

Program is to append the contents of one file to another, Program is to app...

Program is to append the contents of one file to another: void main()    {   clrscr();   fstream file1,file2;   char st1[13],st2[13];/* 13 because a filename canno

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

write a program to find the area under the curve y=f(x) between x=a and x=b integrate y=f(x)   #include float start_point, /* GLOBAL VARIABLES */

C program for find even & odd no.s in the array , C Program for FIND EVEN &...

C Program for FIND EVEN & ODD NO.S IN THE ARRAY #include stdio.h> #include string.h> #include conio.h> void main() {           int i=0,j=0, l_e[100],l_o[100];

Program is to perform all the functions of super bazaar, Program is to perf...

Program is to perform all the functions that are performed in a super bazaar: class stock   {   private:     int itno;     char itname[20];     char brname[20];

Fibonacci function by using simple recursive approach, Implement, in rPeANU...

Implement, in rPeANUt, the a Fibonacci function by using the simple recursive approach. The Fibonacci function can be implemented in c as follow: int fib(int x) {   if (x

.., write a c++ code to implement use of a constructor

write a c++ code to implement use of a constructor

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