After p = new fred[n], how does the compiler know about , C/C++ Programming

Assignment Help:

After p = new Fred[n], how does the compiler know about n objects to be destructed throughout delete[] p?

A:  The run-time system hold the number of objects, n, somewhere where it may be retrieved if you know the pointer, p only. There are two famous techniques that do this. Both of these technique are in use trhough commercial-grade compilers, both have tradeoffs, & neither is perfect. These techniques are following:

Over-allocate the array & put n only to the left of the first Fred object. Employ an associative array along with p as the key and n as the value.

 


Related Discussions:- After p = new fred[n], how does the compiler know about

Luminous Jewels - The Polishing Game, within 2 mins give me answer pllzzzzz...

within 2 mins give me answer pllzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Train Station Schedule, Train Station C++ Program A C++ program that provi...

Train Station C++ Program A C++ program that provides a simple text based interface that will allow a user to create, edit, search, or delete a train schedule. The program will m

Compiler Design - Limit In The Method Instructions, Raj is a newbie to the ...

Raj is a newbie to the programming and while learning the programming language he came to know the following rules: · Each program must start with ''{'' and end with ''}''

Object oriented programming and cryptography, This assignment document will...

This assignment document will be distributed from Blackboard assignment folder. Some parts of the assignments will require you to research answers from your text book (you must rea

Define polymorphism?, Define Polymorphism? A: Polymorphism let a client ...

Define Polymorphism? A: Polymorphism let a client to treat distinct objects in the similar way even if they were developed from distinct classes and exhibit different behaviors.

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

Palindrome, Problem : Change to palindrome A palindrome is a string that r...

Problem : Change to palindrome 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 ta

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

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b.

C program for 5 function of vowels, C Program for 5 FUNCTION OF VOWELS, CNT...

C Program for 5 FUNCTION OF VOWELS, CNT_WORDS, REVERSE void input(char a[]); void output(char a[]); void reverse(char a[], char b[]); char poli(char a[], char b[]);

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