c- language.
1. function:- it is a concept of modular programming consisting of instructions to carry out the specific task. in general concept the function after executing returns a single value to function called program. Advantage of function:- There are following advantages of functions. 1.By using function, we can avoid re-writting, same logic or code again and again in a program. 2.We can call c-functions any number of times in a program and from any place in a program. 3.We can track a large logic c-program easily when, it is divided into multiple function. 4.Reuseablity is the main benifit of function. function is divided into two sub category:- 1. library function. 2. user defined function.