int QSget_named_slack (QSprob p, const char *rowname, double *val)
/* p is an initialized QSprob, a handle to an existing LP problem */ /* Get the slack value for the constraint r2. */ int rval; double val; rval = QSget_named_slack (p, "r2", &val); if (rval) { fprintf (stderr, "Could not get the slack value, error code %d\n", rval); } else { printf ("Slack value = %.6f\n", val); }