[ library(COLIBRI_DOC) | ]
X #= Y
X is equal to Y.
- X
- An integer term.
- Y
- An integer term.
Description
This constraints states that the two terms are equal. It is activated whenever a bound of a domain variable is updated that might require updating other domains. This constraints exists also in a reified form, (X #= Y) #= Bool, where Bool is an int variable ranging in 0..1.
Fail Conditions
Fails if the two terms have a different value.
Resatisfiable
no
Examples
Success:
int_vars(int,[X,Y]), X #: 1 .. 10, Y #: 5 .. 20, X #= Y.
(gives X = _436{[5 .. 10]}, Y = _436{[5 .. 10]})
Fail:
int_vars(int,[X,Y]), X #: 1 .. 10, Y #: 15 .. 20, X #= Y.
See Also
#: / 2, int_vars / 2