<div>
<div class="content wysiwyg-content">
Hi,<br />
&nbsp; &nbsp; &nbsp; &nbsp;what is the use of mmap()? when is it used? and how is it different from using ordinary file operations(fscanf, fprintf, etc)? Is there any advantage of using it?<br />
I did go through the man pages formmap() but didnt understand the concept exactly?<br />
<br />
Thanks.
</div>
</div>


Hi,
       what is the use of mmap()? when is it used? and how is it different from using ordinary file operations(fscanf, fprintf, etc)? Is there any advantage of using it?
I did go through the man pages formmap() but didnt understand the concept exactly?

Thanks.

purpose/advantage of mmap()

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.