Frank:
Right, and I consider that to be "machine dependent"
Not machine dependent, but compiler dependent, that's a big difference! It will work on any machine, as long as it's compiled with GPC.
Of course, I should have said that.
since such things are not available on all Pascal compilers. So I avoid them.
Well, at least the 3rd mechanism is specified in the Extended Pascal standard (ISO 10206), while your way (derving the file name from the variable name) is not standardized and therefore also compiler dependent...
Hmm. Deriving the name from the variable with no changes would seem to me to be pretty simple, whether or not it is standard.
Dr. Thomas D. Schneider National Cancer Institute Laboratory of Experimental and Computational Biology Frederick, Maryland 21702-1201 toms@ncifcrf.gov permanent email: toms@alum.mit.edu http://www.lecb.ncifcrf.gov/~toms/