help2002

It's UWAweek 42 (2nd semester, week 12)

help2002

This forum is provided to promote discussion amongst students enrolled in CITS2002 Systems Programming.
Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!" followup message.

Displaying the 4 articles in this topic

Showing 4 of 738 articles.
Currently 182 other people reading this forum.

UWA week 37 (2nd semester, week 7) ↓

1st project Do functions need to return a value (all 4)

10:52pm Tue 10th Sep, ANONYMOUS

If they don't have a return value, is their default return value 0.0, or should it be a void function instead?

1st project Do functions need to return a value (all 4)

8:19pm Wed 11th Sep, Joshua N.

ANONYMOUS wrote:

> If they don't have a return value, is their default return value 0.0, or should it be a void function instead?

I think either is fine, but returning 0.0 is probably easier.

1st project Do functions need to return a value (all 4)

11:27pm Wed 11th Sep, ANONYMOUS

Hi, currently I have all the functions double in the translated c file and it works fine even if the function doesn't have a return statement. I read that the return value is undefined for such functions in c so I just wanted to confirm that the return value of a function with no return statement won't be used in an expression in the ml file or do I need to check for that and throw an error in such a case?

1st project Do functions need to return a value (all 4)

9:10pm Thu 12th Sep, Joshua N.

ANONYMOUS wrote:

> Hi, currently I have all the functions double in the translated c file and it works fine even if the function doesn't have a return statement. > > I read that the return value is undefined for such functions in c so I just wanted to confirm that the return value of a function with no return statement won't be used in an expression in the ml file or do I need to check for that and throw an error in such a case?

Just add return 0.0 to the end of your functions if they don't have a return statement.