as sbit and using of true/false

[Bytex]

Hi Me team,
New compiler is fantastic but very young.
Here a problem with sbit using.
The problem is: true assigning doesn't work.

Example:

Code: Select all

program Test_Pro_release

dim LED as sbit at PORTB.7

main:

     '// Compile OK
     LED = false
     
     '// 12 305 Argument is out of range "_TRUE" to "sbit"
     '// Test_Pro_release.mbas
     while true
        if LED = false then
           LED = true
        else
           LED = false
        end if
     wend

     '// Compile OK
     while true
        if LED = false then
           LED = 1
        else
           LED = false
        end if
     wend

end.

Thank you in advance

[Dany]

Hi, a bit is not a boolean.
Bits can have the values "0" and "1", booleans can have the values "false" and "true". Both types are in principle incompatible.

[Bytex]

Thank you Dany.
So, what about the old

Code: Select all

Symbol LED = PORTB.7

?
I'm so

[Dany]

Thank you Dany.
So, what about the old

Code: Select all

Symbol LED = PORTB.7

?
I'm so

Hi, I do not know about symbols (I am a mikroPascal addict), but as far as I can see "PortB.7" is also a bit, so you should assign it 0 or 1, not true of false.

[Bytex]

No, no.
This is a programming style problem.
In the past, with the old compiler (V7.2) it was possible:

Code: Select all

Symbol LED = PORTB.7

main:
    TRISB.7 = 0 ' output
    LED = false ' assign 0 output
    while true 
        if LED = false then
            LED = true
        else
            LED = false
        end if
    wend

end.

So, with true/false assignement you was able to manage everything (PINs, boolean variables and more else).

Regards,

[Dany]

No, no.
This is a programming style problem.

In the past, with the old compiler (V7.2) it was possible:

Code: Select all

Symbol LED = PORTB.7
main:
    TRISB.7 = 0 ' output
    LED = false ' assign 0 output
    while true 
        if LED = false 
        then LED = true
        else LED = false
        end if
    wend
end.

So, with true/false assignement you was able to manage everything (PINs, boolean variables and more else).

Everything of course depends on the implicite type conversion rules from boolean to something else (e.g. bit).
Perhaps something has changed there since V7.2?