/* * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". * */ char rcs_id2[] = "$Header$" ; /* Author: E.G. Keizer */ int fac(n) { return ( n==0 ? 1 : n*fac(n-1)) ; } main() { { int dummy ; if ( fac(6) != 720 ) printf("vernielt return waarde\n") ; } return 0 ; }