next up previous contents Back to SYMPHONY Home Page
Next: user_send_feasible_solution Up: User-written functions of the Previous: user_get_upper_bounds

user_is_feasible

int user_is_feasible(void *user, double lpetol, int varnum, int
                     *indices, double *values, int *feasible)

Description:

User tests the feasibility of the solution to the current LP relaxation.

There is no post-processing. Possible defaults are testing integrality ( TEST_INTEGRALITY) and testing whether the solution is binary ( TEST_ZERO_ONE).

Arguments:

tabular1554

Return values:

tabular1556

Wrapper invoked from:
select_branching_object() after pre-solving the LP relaxation of a child corresponding to a candidate and from fathom_branch() after solving an LP relaxation.



Ted Ralphs
Thu Jun 8 12:44:45 CDT 2000