RC>   Also is there a list available of which libraries/library functions 
 RC> are multi-thread friendly?  The docs that I've got 
 RC> (the ones that come with Cset++ 2.1) don't seem to

*ALL* of the functions are multi-thread friendly,  when you compile/link with /Gm.

This does not prevent you from doing silly things though.  For
example,calling getc() for the same stream in different threads will work,
but which thread each piece of data goes to is anyone's guess.

Calling getc() with different streams should work fine.  If you find that
your program behaves better when you replace one of the getc's with
DosRead(),  you have probably prevented the error by changing the timing of
your program (a DosRead() of one byte is a LOT slower than getc()).

Rememeber,  your exception was a "divide by zero";  This doesn't
sound like something that would happen inside of getc().

ps: why are you calling _getc() instead of getc()?  I can't even find a
_getc() in the library reference.


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