Load the problem into the Xpress Optimizer.

0 if function executed successfully, 1 otherwise.

Here the matrix is generated for problem expl2.

XPRBprob expl2;
expl2 = XPRBnewprob("example2");
   ...
XPRBloadmat(expl2);

This function calls the Optimizer library functions XPRSloadlp, XPRSloadqp, XPRSloadglobal, or XPRSloadqglobal to transform the current BCL problem definition into a matrix in the Xpress Optimizer. Empty rows and columns are deleted before generating the matrix. Semi-continuous (integer) variables are preprocessed: if a lower bound value greater than 0 is given, then the variable is treated like a continuous (resp. integer) variable. Variables that belong to the problem but do not appear in the matrix receive negative column numbers. Usually, it is not necessary to call this function explicitly because BCL automatically does this conversion whenever it is required. To force matrix reloading, a call to this function needs to be preceded by a call to XPRBsync with the flag XPRB_XPRS_PROB.

XPRBsync, XPRBgetXPRSprob, Appendix Using BCL with the Optimizer library.