FileSize() bug or feature ?

[Phlos]

Hello all,

Look at this simple line of code :

Code: Select all

Debug Hex(FileSize("*.jpg"))

If you run it in a directory where it resides some "jpg" picture, it will not returns "-1" error code (file not found), but the size a jpg.
Since when the parameter of FileSize() is not a filepath but more like a "mask" with wildcard allowed ?

Nothing about that on documentation.
Until now, I trusted FileSize() to know if a file exists or not (with -1 error code), but no I can't, even if the file "*.jpg" doesn't exist, it does not return -1.

[Shield]

I think the problem might be related to a direct call to the Windows function FindFirstFile
which accepts wildcards. I'd say this should be called a bug as the behavior is clearly
not what the function is intended to do.

[Phlos]

Yes you are right, it calls FindFirstFile(). But it should not. That's not a reliable behaviour.

[skywalk]

Not a bug, just lack of documentation.
Discussed last year and I find it very useful...
viewtopic.php?p=347080&sid=076dacc1eb72 ... d4#p347080
http://www.purebasic.fr/english/viewtop ... 87#p347087

[Fred]

Looks like a bug to me

[Dude]

Looks like a bug to me

So... can it get fixed? I just tested it:

Code: Select all

Debug FileSize("D:\*.jpg") ; Returns 155009

[Josh]

Until now, I trusted FileSize() to know if a file exists or not ...

For an alternative FileExist() look here.