CPXgetqconstrslack

int CPXPUBLIC CPXgetqconstrslack(CPXCENVptr env, CPXCLPptr lp, double * qcslack, int begin, int end)

Definition file: cplex.h

Include files: cplex.h

The routine CPXgetqconstrslack is used to access the slack values for a range of the quadratic constraints of a quadratically constrained program. The beginning and end of the range must be specified. The slack values returned consist of the right-hand side minus the constraint activity level.

Example

 status = CPXgetqconstrslack (env, lp, qcslack, 0, CPXgetnumqconstrs(env,lp)-1);

Parameters:

env	A pointer to the CPLEX environment as returned by `CPXopenCPLEX`.
lp	A pointer to a CPLEX problem object as returned by `CPXcreateprob`.
qcslack	An array to receive the values of the slack or surplus variables for each of the constraints. This array must be of length at least (`end` - `begin+1`). If successful, `qcslack[0]` through `qcslack[end-begin]` contain the values of the slacks.
begin	An integer indicating the beginning of the range of slack values to be returned.
end	An integer indicating the end of the range of slack values to be returned.

Returns:

The routine returns zero on success and nonzero if an error occurs.