Hi.
Good afternoon.
It seems that it has an error in the the control structure "do while".
Please compile the attached program for to see that the expression used 
in the statement "if" is given as correct and gives an error in the 
statement "do while".
Do someone knows why?

Fraternally
Beling

Carlos,

>It seems that it has an error in the the control structure "do while".

The problem lies with the pre-processor, not the compiler. All "do while" 
statements are converted by the pre-processor to a simple "while" statement. 

The compiler complains, because the pre-processor doesn't remove the "do "
in front of the while in your code. I assume that the reason for this is 
that you are calling a method of an object of self in your function -- which 
you should of course only do in a method -- and that the many ":" colons are 
confusing the pre-processor.

Simply remove the superfluous "do " in front of the while -- I always use 
simply "while" and never "do while" -- and everything will compile just 
fine.

Alternatively, you could try to change the Xbase++ "Std.ch" file -- or add 
your own pre-processor directives -- to handle your specific code construct.

Hope that helps,

Andreas

Andreas Gehrs-Pahl
Absolute Software, LLC

phone: (989) 723-9927
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Hello Andreas.
good afternoon.
Many thanks again.
I do call it in a method. I used function in the example for to avoid 
compiler error message.

Fraternally
Beling

On 19/03/2021 18:16, Andreas Gehrs-Pahl wrote:
> Carlos,
> 
>> It seems that it has an error in the the control structure "do while".
> 
> The problem lies with the pre-processor, not the compiler. All "do while"
> statements are converted by the pre-processor to a simple "while" statement.
> 
> The compiler complains, because the pre-processor doesn't remove the "do "
> in front of the while in your code. I assume that the reason for this is
> that you are calling a method of an object of self in your function -- which
> you should of course only do in a method -- and that the many ":" colons are
> confusing the pre-processor.
> 
> Simply remove the superfluous "do " in front of the while -- I always use
> simply "while" and never "do while" -- and everything will compile just
> fine.
> 
> Alternatively, you could try to change the Xbase++ "Std.ch" file -- or add
> your own pre-processor directives -- to handle your specific code construct.
> 
> Hope that helps,
> 
> Andreas
>