- Function taking no arguments
int func()
{
int value;
...
...
...
value = ...;
return value;
}
- Function taking 1 or more arguments
float func(int a, float b, double c)
{
float value;
float x;
...
...
x = a + b - c;
...
...
value = x;
return value;
}
- Function returning no value
void func(int a, float b, double c)
{
...
...
...
} /* (no return statement) */
- Function returning values through its arguments
void func(int *a, float *b)
{
...
...
*a = 5; /* assign a value to scalar int a */
...
b[3] = 7.5; /* assign value to float array b */
} /* (no return statement) */
int main()
{
int a, float b[10];
func( &a, b ); /* specify variable addresses */
/* name of an array IS the address of the array */
}