Page 8 - Sample_test_Float

8 Functions and Pointers

Syntax
ReturnType FunctionName(ArgumenTtype with VariableName)
{

Block of statements;
}
Block of statements may include variable declarations, statements and return value.

Note: The return statement forces the function to return immediately eventhough if function is not yet completed.

Example of function definition
int add(int a,int b)
{
int c;
c = a+b;
return c;
}

Note: In the argument list of function definition, you specify the variable name also.A semicolon should not be placed at
the end of the first line of the function definition.

Another Example
int add(int a,int b)
{
int c;
return c;
c=a+b;
}

Here the function terminates after reaching the return statement without executing the statement “return c.”

Example Program

#include<stdio.h>
int add(int a,int b) //Function Definition
{
return a+b;
}
void main()
{
int x=10,y=20;
int sum;
sum = add(x,y);// Function Calling
printf(“\nSum =%d”,sum);
}

Output
30