functions

[osha]

If a function needs to modify more than one variable, it must:
Choose one answer.
a. be a call by reference function.
b. be pass by value.
c. return all values needed.
d. be a void function.

[donbock]

It is not appropriate for us to simply hand you the answer. What do you think about these choices?

[whodgson]

What do you make of this function:

void computeCircle(double& area, double& circumference,double r)
{
area = PI*r*r;
circumference = 2*PI*r;
}
/*Output
Enter radius ( 0 to quit)21.3
Area : 1425.31  circumference : 133.832
*/

[jkmyoung]

See whodgson's post, and don't take my answer too seriously.

I would say "none of the above."
The question is not specific enough and is poorly written.

void changeLocalVariablesForNoReason(){
int i = 0; 
int j = 0;
  i = 1;
  j = 2; //oh, it changed!
}