Define memory allocation functions, Computer Engineering

Assignment Help:

The various memory allocation functions are described below:

(i) malloc( ): It is a memory allocation function that assigns requested size of bytes and returns a pointer to the first byte of the allocated space. The malloc function returns a pointer of type void so we can allocate it to any type of pointer.

(ii) calloc( ): It is another memory allocation function that assigns space for an array of elements, initializes them to zero and then returns a pointer to the memory. This function is normally used for request memory space at run time. Whereas malloc allocates a single block of storage space, calloc allocates multiple block of storage, each of the similar size, and then sets all bytes to zero

(iii) realloc( ): realloc is a memory allocation function that changes the size of previously allocated space. Sometime it may happen that the allocated memory space is larger than what is needed or it is less than what is needed. In both cases, we can change the memory size already allocated with the help of the realloc function called as reallocation of memory

 


Related Discussions:- Define memory allocation functions

What is the protocol used by sap gateway process, What is the protocol used...

What is the protocol used by SAP Gateway process? The SAP Gateway method communicates with the clients based on the TCP/IP Protocol.

General principles of pruning, General principles of pruning: The gene...

General principles of pruning: The general principles are such that: 1. Given a node N that can be chosen by player one, thus if there is another node, X, along any path,

Evidence of intelligent behavior - artificial intelligence, Evidence of int...

Evidence of intelligent behavior - Artificial Intelligence: Machines mean they could simply be personal computers, or they could be robots with embedded automative systems, or

Classifier with classes, Consider one versus the rest voting used for class...

Consider one versus the rest voting used for classifier with three classes {a, b, c}. Given a row of data denoted as x0 suppose that the classifier for a versus the rest predicts t

Describe about the desk top publishing, Desk Top Publishing (DTP) As wo...

Desk Top Publishing (DTP) As word processors develop increasingly more sophisticated features, differences with desk top publishing (DTP) packages becomes more and more blurred

Enumerate the process of dynamic modelling:, Define the Process of dynamic ...

Define the Process of dynamic modelling: Analyse applicability of actions Recognize object states Create dynamic model diagram Express every state in terms o

Explain what logic gets synthesized , What logic gets synthesized when I us...

What logic gets synthesized when I use an integer instead of a reg variable as a storage element? Is use of integer recommended? An  integer  can  take  place  of  a  reg  as

Give an example of problem statement, Give an example of Problem Statem...

Give an example of Problem Statement You should understand here that you are looking for a statement of requirements, not a proposal for the solution. OOA specifies structu

What is loader, What is loader? Loader is a system software which havin...

What is loader? Loader is a system software which having a set of utility programs. It will load the object program to the memory.

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