| is_piv_ruleChecks if the specified pivot rule is active. unsigned char is_piv_rule(lprec *lp, int rule); Return Value is_piv_rule returns TRUE if the specified pivot rule is active, else FALSE Parameters lp Pointer to previously created lp model. See return value of make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI ruleCan be one of the following values: 
 Remarks This rule can influence solving times
						considerably. Depending on the model one rule can be best and for another model
						another rule. Example See Also make_lp, copy_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI, get_pivoting, set_pivoting, is_piv_mode |