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

Program for design and simulate a basic risc processor, Overall Program Obj...

Overall Program Objective: You will design and simulate a basic RISC processor.   You will create and encode an instruction set.  Your final task will be to "compile" a program

Flowcharting, how to create a flowchart? can you help me in my assignment a...

how to create a flowchart? can you help me in my assignment about flowcharting ....

Game coding, polishing the jewel game with c coding

polishing the jewel game with c coding

Random question, Ask question #write statement that assign random integer t...

Ask question #write statement that assign random integer to the varaible n in the (100

I want im messenger, I would like to get you to collaborate in my project. ...

I would like to get you to collaborate in my project. We want a C programmer to Develop applications for Windows, the first application may be an Instant messenger encrypted in a w

C program for reverse the string , C Program for REVERSE THE STRING #i...

C Program for REVERSE THE STRING #include stdio.h> #include conio.h> #include string.h> void main() {           char name[30];           char *s;

How the operations are performed in a single linked list, Question: (a)...

Question: (a) Explain a linked list. (b) Describe the three different types of linked list with the help of diagrams. (c) Give two advantages and two disadvantages

Polindrome, A palindrome is a string that reads the same from both the ends...

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

Program Assignment #3, Programming Assignment #3: Vehicle Track Performance...

Programming Assignment #3: Vehicle Track Performance Tests Purpose: The purpose of this programming assignment is to give the student experience in using functions, arrays, and str

Program is to define a class as employee, Program is to define a class as e...

Program is to define a class as employee: Write a program to define a class as employee and collect information about them by using classes and object class employee   {

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