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Bug #399

closed

Gosub and Goto using variable fails (integer or string)

Added by Brian Flanagan over 4 years ago. Updated about 4 years ago.

Status:
Closed
Priority:
High
Assignee:
Francois Lionet
Target version:
Beta RC4
Start date:
06/27/2020
Due date:
% Done:

0%

Estimated time:
2:00 h
Affected version:
Beta RC2

Description

Gosub using variable fails. (related to bug #28)
The result is a syntax error.

#manifest: "pc"
#splashScreen: false
#speed: "safe"
#fps: false

X=20

Gosub X

End

20 Print "line 20"
Return

This also fails when using labels:

#manifest: "pc"
#splashScreen: false
#speed: "safe"
#fps: false

X=20
X$="MyLabel"
Gosub X$
End

MyLabel:
Print "My Label"
Return

NOTE: In both cases, you can work around this bug by putting the expression within parentheses, but this should NOT be required. Any valid expression should be allowed.
NOTE2: This was also a bug in AMOOS Pro (for numerics). String expressions weren't a problem in AMOS Pro (but they are in AOZ!).

Here's the syntax description from the manual... as it should be:

GOSUB
structure: jump to a sub-routine
Gosub label
Gosub number
Gosub expression

NOTE that there are NO parentheses in the syntax!
NOTE also that string labels are NOT case-sensitive!

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