for
Entity: predicate

Usage:
for( I, A, B),
for( I, A, B, Step)

Makes a loop in which the value of I is moving between A and B with step Step. If Step is missing then the default step is one.

I starts from A and it last value is =< B if step is positive and is >= B if step is negative.

Example:

?- for( I, 10, 1, -1), write(I), write(" "), fail.

This example will write:

10 9 8 7 6 5 4 3 2 1 No

See also:

repeat