[Implemented] ListSize

User_Russian · Post by **User_Russian** » Wed Oct 12, 2022 8:29 pm

safely used to determine if a list is empty or not.

Using the function is not safe! The application is crashing.

DisableDebugger
NewList x()
FreeList(x())
MessageRequester("", Str(ListSize(x())))

normeus · Post by **normeus** » Wed Oct 12, 2022 9:09 pm

if you might use the list again use:

ClearList(x())

It frees memory like FreeList() but the List reference is still available. FreeList() makes it like the variable never existed.

Norm.

infratec · Post by **infratec** » Wed Oct 12, 2022 9:13 pm

if a list is empty or not

After FreeList() you have no list. So it is correct.
It is not a procedure to test if a list is available or not.

infratec · Post by **infratec** » Wed Oct 12, 2022 9:21 pm

Maybe a FeatureRequest for IsList() is a good idea.

STARGÅTE · Post by **STARGÅTE** » Wed Oct 12, 2022 10:19 pm

I would prefer that ListSize() gives -1 if the list is not initialized, as it is the behavior for arrays.

Denis · Post by **Denis** » Thu Oct 13, 2022 5:37 am

STARGÅTE wrote: Wed Oct 12, 2022 10:19 pm I would prefer that ListSize() gives -1 if the list is not initialized, as it is the behavior for arrays.

+1

Post by **Andre** » Fri Mar 10, 2023 9:51 pm

Moved to 'Feature requests'

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