int QSdelete_named_columns_list(QSprob p, int num, const char **colnames)
/* Assume p is an initialized LP problem. */ /* Delete variables v and w. */ int rval; const char *dlist[2] = { "v", "w" }; rval = QSdelete_named_columns_list (p, 2, dlist); if (rval) { fprintf (stderr, "could not delete variables, error code %d\n", rval); }