#True is only 1, not all True

[rsts]

#TRUE is a constant defined as NOT #FALSE. True can be anything as long as it is not false, and false
can be anything as long as it is not true.

Simple as that. :roll:

Code: Select all

Define condition
condition=6
If condition = #True
  debug "Condition is #True"
EndIf

If condition  NOT #False
  debug "condition is NOT #False"
EndIf

[JackWebb]

I was just thinking about this the other day while working on an IF structure. I have to agree with Mr. Gaman's original question. #False is always false it never changes. But #True is not always "true" but never false. This is what I came up with. I wonder if it will work in every case? Thanks to Idle for the tip!

Code: Select all

Macro IsTrue(v)
  v Or 0
EndMacro

Macro IsFalse(v)
  0 Not v
EndMacro

Test = 0

If IsTrue(Test)
  Debug "test is true"
EndIf

If IsFalse(Test)
  Debug "test is false"
EndIf

Jack

[Trond]

Why go through all of that hassle when you can do it correctly like this:

Code: Select all

Test = 0

If Test
  Debug "test is true"
EndIf

If Not Test
  Debug "test is false"
EndIf

[Joakim Christiansen]

Why go through all of that hassle when you can do it correctly like this:

Code: Select all

Test = 0

If Test
  Debug "test is true"
EndIf

If Not Test
  Debug "test is false"
EndIf

+1

And maybe PB should get the keywords "true" and "false" too; so people wont mistake the constant for such...

[JackWebb]

Why go through all of that hassle when you can do it correctly like this:

Code: Select all

Test = 0

If Test
  Debug "test is true"
EndIf

If Not Test
  Debug "test is false"
EndIf

Because pointless coding gymnastics force me to think about things I normally would not think about. Also because it helps a PureBasic noob like me gain a deeper understanding of the language. Other than that it's a good question and interesting to read everyone's reponses and code.

Jack