how to conc a unknown number of lists

Cantona7 · Mar 31, 2001

how can i cocatenation an unnown number os lists?

pimi · Mar 19, 2002

cat([], Y, Y).
cat([X|XR], Y, [X|Z]) :- cat(XR, Y, Z).

?- cat([a], [], X).
X = [a] ;
no

?- cat([], [a], X).
X = [a] ;
no

?- cat([a, b], [c, d, e], X).
X = [a,b,c,d,e] ;
no

Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

how to conc a unknown number of lists

Cantona7

MIS

pimi

Programmer

Similar threads

Part and Inventory Search

Sponsor