warning: : unused label

ID:2073467
 
Apr 21 2016, 11:03 pm
BYOND Version:509
Operating System:Windows 10 Pro 64-bit
Web Browser:Chrome 49.0.2623.112
Applies to:DM Language
Status: Open
Issue hasn't been assigned a status value.
Descriptive Problem Summary:
The following code: 
if (DEBUG)
causes a compile time warning of "unused label".

Expected Results:
Since I'm not working with the preprocessor at this point it should interpret "DEBUG" as a variable.

Actual Results:
"DEBUG" appears to be a reserved variable?

Does the problem occur:
Every time? Or how often?
Every time.
In other games?
Yes.
In other user accounts?
Yes.
On other computers?
Yes.

When does the problem NOT occur?
The problem does not occur when another name is used.

Workarounds:
Use a different name than "DEBUG".
Apr 22 2016, 4:14 am
The below seems to work correctly on both 509.1319 and 510.1338 on Linux; do you have a full demo that shows the problem? My guess is some of the surrounding code is influencing it.
/world/New()
    var/DEBUG = 1
    if (DEBUG)
        world.log << "DEBUG is true!" // this prints
    else
        world.log << "DEBUG is false!" // if you change DEBUG to 0 above, this prints instead
    del(src)

Apr 22 2016, 4:16 am
In my case it's a global variable instead of a local one (and a const variable at that).
Apr 22 2016, 4:18 am
Like this?
/var/const/DEBUG = 1

/world/New()
    if (DEBUG)
        world.log << "DEBUG is true!"
    else
        world.log << "DEBUG is false!"

(this behaves exactly the same as my first post for me)
Apr 22 2016, 4:56 am
If you have debug mode on in Dream Maker, that is probably the cause of this.
Apr 22 2016, 5:58 am
I did test with a #define DEBUG above, I couldn't get it to give an "unused label" warning though. If it is debug mode, it's not the same code as I've posted.