[Gambas-user] IF Not (any boolean) then

[Lewis Balentine]

My Apologies, I was trying to keep the message short and to the point:

' Gambas module file
' Project IfNot

Public Sub Main()
   ' The following line Prints "False"
   If TestFunk() Then Print "True" Else Print "False"
   ' The following line prints "False"
   If TestFunk() = False Then Print "False" Else Print "True"
   '*** The following line produces the error "unknown identifier: NOT" ***
   'If Not(TestFunk()) Then Print "False" Else Print "True"
   ' The following line prints "True"
   If True Then Print "True" Else Print "False"
   '*** The following line produces the error "unknown identifier: NOT" ***
   'If Not(True) Then Print "False" Else Print "True"

End

Private Function TestFunk() As Boolean
     Return False
End

' [System]
' *** Gambas = 3.6.2 ***
' OperatingSystem = Linux
' Kernel = 3.13.0 - 24 - generic
' Architecture = x86_64
' Distribution = Linux Mint 17 Qiana
' Desktop = MATE
' Theme = QGtk
' Language = en_US.UTF - 8
' Memory = 15994 M
' [Libraries]
' Cairo = libcairo.so.2.11301.0
' Curl = libcurl.so.4.3.0
' DBus = libdbus - 1. so.3.7.6
' GStreamer = libgstreamer - 0.10.so.0.30.0
' GStreamer = libgstreamer - 1.0.so.0.204.0
' GTK + 3 = libgtk - 3. so.0.1000.8
' GTK += libgtk - x11 - 2.0.so.0.2400.23
' OpenGL = libGL.so.1.2.0
' Poppler = libpoppler.so.44.0.0
' Qt4 = libQtCore.so.4.8.6
' SDL = libSDL - 1.2.so.0.11.4
'====================================
' [System]
' *** Gambas = 3.6.90 ***
' OperatingSystem = Linux
' Kernel = 3.13.0 - 24 - generic
' Architecture = x86_64
' Distribution = Linux Mint 17 Qiana
' Desktop = MATE
' Theme = QGtk
' Language = en_US.UTF - 8
' Memory = 3944 M
' [Libraries]
' Cairo = libcairo.so.2.11301.0
' Curl = libcurl.so.4.3.0
' DBus = libdbus - 1. so.3.7.6
' GStreamer = libgstreamer - 0.10.so.0.30.0
' GStreamer = libgstreamer - 1.0.so.0.204.0
' GTK + 3 = libgtk - 3. so.0.1000.8
' GTK += libgtk - x11 - 2.0.so.0.2400.23
' OpenGL = libGL.so.1.2.0
' Poppler = libpoppler.so.44.0.0
' Qt4 = libQtCore.so.4.8.6
' SDL = libSDL - 1.2.so.0.11.4

cheers,

Lewis



On 01/01/2015 04:39 PM, Tobias Boege wrote:
> On Fri, 02 Jan 2015, adamnt42 at ...626... wrote:
>> On Thu, 1 Jan 2015 23:13:20 +0100
>> Tobias Boege <taboege at ...626...> wrote:
>>
>>> On Thu, 01 Jan 2015, Lewis Balentine wrote:
>>>> If I use "NOT" in an "IF" statement with any boolean (function or value)
>>>> then I get an error. example:
>>>>
>>>> If NOT (BooleanFuntion) then Do this
>>>> unknown identifier: NOT
>>>>
>>>> Am I mistaken in thinking that one should be able to use the NOT
>>>> operator in this manner ?
>>>>
>>>> I can get around this by changing the syntax to. example:
>>>> If BooleanFuntion = False then Do this
>>>>
>>> Attached is a script which works over here. If you use Not in the same way,
>>> there must be an error in your Gambas or the parts of your code which you
>>> didn't show us. (The latter being a common outcome of not sending the whole
>>> script/project ;-))
>>>
>>> Regards,
>>> Tobi
>>>
>>> -- 
>>> "There's an old saying: Don't change anything... ever!" -- Mr. Monk
>> Hey Tobi!
>>
>> Didn't we do this one a few weeks ago?
>>
>> The error is not the NOT it's the missing () ....
>>
>> b :-)
> And I insist that it would be easier to spot if there was a whole concrete
> (yet minimal) script to look at, not abstracting from important syntactical
> details like parentheses or whether BooleanFunction above was actually a
> Function returning a Boolean or an expression producing a Boolean. Well
> whatever, see you next time, I guess :-)
>
> Regards,
> Tobi
>