Dynamic memory management, C/C++ Programming

Assignment Help:

C and C++ require explicit dynamic memory management, using new and delete or malloc() and free().

It is helpful to understand where variables exist (usually the stack or the heap, sometimes the data segment 1).

The stack is managed for you by the compiler, so it's usually the easiest memory to use. Local variables go on the stack, and passed function parameters go on the stack2. Since the stack frame can change signi?cantly between uses, do not return pointers to the stack! This is analogous to dereferencing freed memory.

If a variable needs to exist longer than a function call, then you should put allocate space for it on the heap (with new, for instance). If you allocate space for a variable, remember to free that space when you're done with it! If you allocate memory but don't free it, you'll end up with memory leaks, which usually becomes a problem when a program is supposed to run for a long time, repeatedly allocating and forgetting to free. It can be helpful to write allocating functions/methods at the same time as freeing functions/methods, so that you don't forget to deallocate memory from the heap.


Related Discussions:- Dynamic memory management

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

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. The area under a curve between two points can b

AlgorithmS, Algorithm to find the value of the powers raised by integer

Algorithm to find the value of the powers raised by integer

C++ project, project on business management

project on business management

Explain static member functions, Static Member Functions All the object...

Static Member Functions All the objects of the class share static data members of a class. The example above demonstrates how to keep track of all the objects of a class which

What does extern "c" int func(int *, A: This will turn o_ "name mangling" f...

A: This will turn o_ "name mangling" for func so that one can connect to code compiled by a C compiler.

C program for dynamic data structure(linked list), Aim: To implement a pro...

Aim: To implement a program for dynamic data structure(linked list). Code:                       class node {             int data;             node *next;

#pointers, what is the purpose of pointer ? what is the syntax? how it work...

what is the purpose of pointer ? what is the syntax? how it works?

C program to print l diagonal triangle, C program to print L diagonal trian...

C program to print L diagonal triangle: void main() {                 int i=0,j=0;                 int arr[rows][cols];                 for (i=0; i

Functions, differentiate between inbuilt and user defined functions

differentiate between inbuilt and user defined functions

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