Copy the user-defined callbacks from one SLP problem to another

The following example creates a new problem and copies only the Xpress NonLinear callbacks from the existing problem (not the Optimizer library ones).

XSLPprob nProb;
XPRSprob xProb;
int Control;

XSLPcreateprob(&nProb, &xProb);

Control = 1<<2;
XSLPsetintcontrol(Prob, XSLP_CONTROL, Control);
XSLPcopycallbacks(nProb, Prob);

Note that XSLP_CONTROL is set in the old problem, not the new one.

Normally XSLPcopycallbacks copies both the Xpress NonLinear callbacks and the Optimizer Library callbacks for the underlying problem. If only the Xpress NonLinear callbacks are required, set the integer control variable XSLP_CONTROL appropriately.

XSLP_CONTROL