PreIntsolCallback Delegate

public delegate void PreIntsolCallback(
	XPRSprob cbprob,
	Object cbdata,
	int soltype,
	ref int p_reject,
	ref double p_cutoff
)

Parameters

cbprob   XPRSprob

The problem passed to the callback function, preintsol.

cbdata   Object

The user-defined data passed as data when setting up the callback.

soltype   Int32

/// The type of MIP solution that has been found:///

• 0: The continuous relaxation solution to the current node of the tree search, which has been found to be integer feasible.
///
• 1: A MIP solution found by a heuristic.
///
• 2: A MIP solution provided by the user.
///

p_reject   Int32

/// Set this to 1 if the solution should be rejected. When soltype is zero, this will also drop the node problem.

p_cutoff   Double

/// /// The new cutoff value that the Optimizer will use if the solution is accepted./// /// /// If p_cutoff is assigned a value, the new value will be used instead./// The cutoff value will not be updated if the solution is rejected.///

Reference

Other Resources