For more free Urdu Tutorials click here: bit.ly/ZcRlXc
Like us on facebook: on.fb.me/13Z3CqS
Follow us on twitter: bit.ly/13Z3LKP
This video is about C Programming Language Functions Introduction in Urdu. In this Urdu Tutorials Series I teach you how to program in C programming language.
A function is a block of code that has a name and it has a property that it is reusable i.e. it can be executed from as many different points in a C Program as required.
Function groups a number of program statements into a unit and gives it a name. This unit can be invoked from other parts of a program. A computer program cannot handle all the tasks by it self. Instead its requests other program like entities -- called functions in C -- to get its tasks done. A function is a self contained block of statements that perform a coherent task of same kind
The name of the function is unique in a C Program and is Global. It neams that a function can be accessed from any location with in a C Program. We pass information to the function called arguments specified when the function is called. And the function either returns some value to the point it was called from or returns nothing.
We can divide a long C program into small blocks which can perform a certain task. A function is a self contained block of statements that perform a coherent task of same kind.