What is the difference between realloc() and free(), Computer Engineering

Assignment Help:

The free subroutine frees a block of memory lastly allocated by the malloc subroutine. Undefined results happen if the Pointer parameter is not a valid pointer. If the Pointer parameter is a null value, no action will happen. The realloc subroutine changes the size of the block of memory pointed to by the Pointer parameter to the number of bytes specified by the Size parameter and returns a new pointer to the block. The pointer specified by the Pointer parameter must have been formed with the malloc, calloc, or realloc subroutines and not been deallocated with the free or realloc subroutines. Undefined results happen if the Pointer parameter is not a valid pointer.             

 

 


Related Discussions:- What is the difference between realloc() and free()

What does the future in gimp, Version 2.8 may bring a combined Transform to...

Version 2.8 may bring a combined Transform tool (Scale, Rotate,Flip and Perspective), more use of Cairo for attractive ant aliased graphics and more usability improvements. We will

Global fon, GlobalFon is an international communication company, which offe...

GlobalFon is an international communication company, which offers international prepaid calling cards. They introduced three different types of cards, (1) AsiaFon: is cheapest for

Approach to reasoning - first-order logic, Approach to reasoning - first-or...

Approach to reasoning - first-order logic: The formal approach to reasoning has bigger return and disadvantages. In generally we notice, if a computer program has proved somet

How are the instructions provided to computer, Let's answer our second ques...

Let's answer our second question first. All computers have a Unit which performs arithmetic and logical functions. This Unit is called as Arithmetic and Logic Unit (ALU). However h

Database system, What are the three data anomalise that are likely to occur...

What are the three data anomalise that are likely to occur as a result of data redundancy?

Explain what are user controls, Briefly explain what user controls are and ...

Briefly explain what user controls are and what server controls are and the differences between the two.   An ASP.NET control (sometimes known as a server control) is a server-

What are the probabilities that the patient has the virus, In a clinic 0.15...

In a clinic 0.15 of the patients have got the HIV virus. Assume a blood test is carried out on a patient. If the patient has got the virus the test will turn out positive with prob

Does c have circular shift operators, No C don't have circular shift operat...

No C don't have circular shift operator. (Part of the reason why that is the sizes of C's types aren't precisely described----but a circular shift makes most sense when applied to

Rules for calling assembly subroutines from, Q. Rules for calling assembly ...

Q. Rules for calling assembly subroutines from? The rules for calling assembly subroutines from C are: (i)  Memory model: The calling program and called assembly programs sh

What is asynchronous transmission, What is asynchronous transmission An...

What is asynchronous transmission An asynchronous transmission technique used in many interactive terminals employ special bits. With this method each character consists of thr

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