functions in C ..!!

           A function provides a convenient way to encapsulate some computation, which can then be used without worrying about its implementation. With properly designed functions, it is possible to ignore how a job is done; knowing what is done is sufficient. C makes the sue of functions easy, convinient and efficient; you will often see a short function defined and called only once, just because it clarifies some piece of code.



A function definition Syntax: 
return-type function-name(parameter declarations, if any)
{
   declarations
   statements
}

Example: 

/*

power.c: This program will give you brief idea about functions. 

Author: Afiz S 

Date: 11/08/10

*/

#include

int power(int a, int b); //prototype of the function. 

main()

{

int a,b;

printf("Enter your 2 number base and exponent\n");

scanf("%d%d",&a,&b);

printf("%dpower %d is = %d\n",a,b,power(a,b));  // calling function. 

}

int power(int a, int b) // function defination 

{

int i,base=a;

for(i=1;i

{

//printf("%d\n",a);

a=a*base;

}

return a;

}