Hello,
Where can I find the declaration of read, readln, write and writeln procedures? I've searched the whole source package for fpc and didn't find even header of those function, where they are?
Mailing lists / fpc-pascal / 2003-06
System unit and readln
6 messages · 3 people ·
- Maciej Łaszcz 3
- Marco van de Voort 2
- Peter Vreman 1
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Show quoted text 5 lines
Hello,
Where can I find the declaration of read, readln, write and writeln
procedures? I've searched the whole source package for fpc and didn't
find even header of those function, where they are?
They are handled internally by the compiler. See the reference manual for a description
Where can I find the declaration of read, readln, write and writeln procedures? I've…
Where can I find the declaration of read, readln, write and writeln procedures? I've searched the whole source package for fpc and didn't find even header of those function, where they are?
These aren't proper procedures, and the compiler generates "special" code for it.
So there is no definition.
If you are merely searching for a way to do variable number of arguments, look in the help for "array of const"
Marco van de Voort wrote 11 lines
> Where can I find the declaration of read, readln, write and writeln
> procedures? I've searched the whole source package for fpc and didn't
> find even header of those function, where they are?
These aren't proper procedures, and the compiler generates "special" code
for it.
So there is no definition.
If you are merely searching for a way to do variable number of arguments,
look in the help for "array of const"
I need to know which system function have to be blocked to block writeln, write function. And as I see I can't block it
Show quoted text 15 lines
On Thu, 19 Jun 2003, Marco van de Voort wrote:
> > Where can I find the declaration of read, readln, write and writeln
> > procedures? I've searched the whole source package for fpc and didn't
> > find even header of those function, where they are?
>
> These aren't proper procedures, and the compiler generates "special" code
> for it.
>
> So there is no definition.
>
> If you are merely searching for a way to do variable number of arguments,
> look in the help for "array of const"
I need to know which system function have to be blocked to block writeln,
write function. And as I see I can't block it
Yes you can. See the Crt unit. In practice you have to redefine the handlers in the output handle (stdout under C) so that those handlers don't do anything with the input (or redirect it to where you want)
close(output);
assign(Output,'text.txt');
rewrite(Output);might alread do something.
Marco van de Voort wrote 10 lines
Yes you can. See the Crt unit. In practice you have to redefine the handlers in
the output handle (stdout under C) so that those handlers don't do anything with
the input (or redirect it to where you want)
close(output);
assign(Output,'text.txt');
rewrite(Output);
might alread do something.
This is what I need, thank you very much