6 Sep
1996
6 Sep
'96
4:46 p.m.
Hello Patricio,
I currently teaching Operative System to students who only know Pascal, so I'd like to know if we can use Unix System calls in pascal programs wirh GPC ? I mean stuff like 'fork()', 'exec()', etc...
You can access any function using the "external", "C", and "asmname" directives:
Procedure fork; external;
means: there is an external Procedure "Fork" (first letter uppercase),
Procedure fork; C;
means: there is an external Procedure "fork" (everything lowercase), and
Procedure fork; asmname 'foO';
means: there is an external Procedure with the funny name "foO" (last letter is uppercase in this example) which can be accessed from Pascal via the name "fork".
Good luck,
Peter