Re: read shows surprising results

Dirk Weber schrieb:
> Hi,
> 
> I do not really understand where the mistake is: In my understanding of
> the read statement or in the book I use for self studying Pascal.
> 
> Here the program listing
> ..........
> writeln('Please enter 123 a45b');
> read(n1,z1,z2,n2);
> 
> Running the program resulted in a runtime error.
> 
> The error message was:
> 
> Runtime error 106 at $08048199

Turbo Pascal gives the same error.

My advice:
Never use read for input from keyboard!

If you want to read just one thing, ReadLn can be okay. ReadLn is also
okay if you want to read a string and parse it.

In all other cases use ReadKey.

You need to validate any input in any case, nobody wants a Runtime error.

Wolf