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

Integer parameters, write a static method with one integer parameter, x tha...

write a static method with one integer parameter, x that returns the value of the polynomial 3x(2)- 7x + 2

Explain constructors, Constructors By definition, a constructor functio...

Constructors By definition, a constructor function of some class is a member function that automatically gets implemented whenever an instance of the class to which the constru

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

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

Area under curve , c-program to find the area under the curve y=f(x) betwe...

c-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   #include float start_point, /

Program is to define a class as student, Program is to define a class as st...

Program is to define a class as student: Program is to define a class as student and display the records specific depending upon the number class student  {  private:

KRPano, I am seeking an expert to create a 360 degree virtual tour in KRPan...

I am seeking an expert to create a 360 degree virtual tour in KRPano for use on PCs, tablets and smartphones. You will be given with panoramas in order to create an advanced KRPano

Declaring Integer variables with an example, How do you declare an integer ...

How do you declare an integer variable? Explain with an example.

Padovan.., count the number of string in n-th padovan string

count the number of string in n-th padovan string

#title. sentinel controlled loop, #question.develop an algorithm using pseu...

#question.develop an algorithm using pseudocode for computing cos(x) and sin(x). use a sentinel controlled while loop. use the series definition of e^+-jx

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