Answer Posted / vignesh1988i
malloc is briefly termed as Memory ALLOCation ......
whenever we write a program in C we will declare some
variables or arrays for a size more than whatever we need ,
etc etc..... so some variables are getting used correctly
and in arrays only some of the memory spaces are getting
used because the user dont know how much spaces he is gonna
use.......so here some memory is getting wasted without
using it.... so there comes a concept called DYNAMIC MEMORY
ALLOCATION in C...
we will give the values for how much memory we need at the
run time of the program... but this concept also only 85%
efficient... this has three types :
1)malloc();
2)calloc();
3)realloc();
malloc() is a function present in ALLOC.H standard library
which is used to allocate memory at run time (ie) in single
or in blocks.....
the syntax is :
pointer_variable=(typecasting
datatype*)malloc(sizeof(datatype));
this pointer variable should be of same datatype as the
typecasting datatype........
thank u
| Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
What is a buffer in c?
What is the meaning of 2d in c?
what value is returned to operating system after program execution?
What is a MAC Address?
What is difference between main and void main?
What is the use of f in c?
What is getch() function?
I completed my B.tech (IT). Actually I want to develop virtual object that which will change software technology in the future. To develop virtual object what course I have to take. can I any professor to help me.
What are compound statements?
Lists the benefits of c programming language?
What is hungarian notation? Is it worthwhile?
Describe the difference between = and == symbols in c programming?
general for is %wd,f-d; in this system "w" means a) 'w' represent total width of digits b) 'w' represent width which includes the digits before,after decimal place and the decimal point c) 'w' represent width which includes the digits before only d) 'w' represent width after decimal place only
What is an array in c?
What is external variable in c?
