Function definitions implement the function prototype. - C Function

Description

Function definitions implement the function prototype.

Demo Code

#include <stdio.h> 
int addTwoNumbers(int, int);  //function prototype 
int main() { /*from w ww  . j  a  v  a 2s  . co  m*/
   printf("%d",addTwoNumbers(2, 3) );
   return 0;
}
//function definition 
int addTwoNumbers(int operand1, int operand2){ 
   return operand1 + operand2; 
}

Result

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Related Tutorials

• Use function definition as function prototype
• To create an in-line function, precede its definition with the inline keyword. For example, in this program, calls to the function max( ) are optimized:
• Function without returning any value.
• Function prototypes should be placed outside the main() function and before the main() function starts
• Function calls by passing variables as parameters