Can i drop the [] while deleteing array of some built-in , C/C++ Programming

Assignment Help:

Can I drop the [] while deleteing array of some built-in type (char, int, etc)?

A: No. you can't

Sometimes programmers think that the [] in the delete[] p only present so the compiler will call the suitable destructors for all elements in the array. Due to this reasoning, they suppose that an array of some built-in type such as char or int can be deleted without the []. For example they suppose the following is valid code:

void userCode(int n)

{

char* p = new char[n];

...

delete p; //  ERROR! Should be delete[] p !

}

However the above code is wrong and it can cause a blow at runtime. Particularly, the code that's called for delete p is operator delete (void*), however the code that's called for delete[] p is operator delete[](void*). For the latter the default behavior is to call the former, however users are allowed to replace the latter along with a different behavior (in which case normally they would also replace the corresponding new code in operator new[](size_t)). If they replaced the delete[] code thus it wasn't compatible  along with the delete code, and you called the wrong one (that means  if you said delete p instead of delete[] p), you could end up with a disaster at runtime.


Related Discussions:- Can i drop the [] while deleteing array of some built-in

Data structure, Project Description: Project is related indexing data re...

Project Description: Project is related indexing data related some data structure. I need to share all information related project later if i contact any body Skills required

.luminous jewels, Byteland county is very famous for luminous jewels. Lumin...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Program to create triangles on the surface , Using your mountain project so...

Using your mountain project source code as a starting point, you are to write a code that randomly chooses one of the triangles on the surface of your mountain, this will be the en

C program to store all ascii char into a file, Program is to store all ASCI...

Program is to store all ASCII char into a file: void main()     {   ofstream  fout("ascii.txt");   int i,n=256;   for(i=1;i     {     fout     }

System programing, #quesdifferentiate betweenrelocatable and self relocatin...

#quesdifferentiate betweenrelocatable and self relocating program with exampletion..

What is the difference between structure and class, What is the difference ...

What is the difference between structure and class? - Members of structures are public while those of a class are private. - Classes provide data hiding while structures don

Programming an odds betting website, Programming an odds betting website ...

Programming an odds betting website Project Description: We want someone to program a odds betting website, Require someone with experience and skills! Skills required are

How many ways are there to initialize an int with a constant, There are two...

There are two ways for initializes in C++ as shown in the example that follows. The first way uses the traditional C notation. The second way uses constructor notation. int foo

Game coding, polishing the jewel game with c coding

polishing the jewel game with c coding

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