int sym_get_obj_sense(sym_environment *env, int *sense)
This routine is used to get the objective sense.
| sym_environment *env | IN | Pointer to the SYMPHONY environment. | 
| int *sense | OUT | Pointer to an integer indicating the objective sense. In return, it will be 1 in case of minimization and -1 in case of maximization. | 
| FUNCTION_TERMINATED_ABNORMALLY | Function invoked unsuccessfully. | 
| FUNCTION_TERMINATED_NORMALLY | Function invoked successfully. |