According to Jesper Lund:

Is there a (simple) way of trapping runtime I/O errors in GPC, like the {$I-} compiler directive in Borland Pascal? [...]

Not yet, but it is being worked on. (Interested to take part?;-)

[...] to emulate the Borland 'Val' procedure.

`Val' is being worked on as well. Greetings, Peter Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [971005] maintainer GNU Pascal [971001] - http://home.pages.de/~gnu-pascal/ [971005]