The following new error classes are defined
| MPI_ERR_WIN | invalid win argument | 
| MPI_ERR_BASE | invalid base argument | 
| MPI_ERR_SIZE | invalid size argument | 
| MPI_ERR_DISP | invalid disp argument | 
| MPI_ERR_LOCKTYPE | invalid locktype argument | 
| MPI_ERR_ASSERT | invalid assert argument | 
| MPI_ERR_RMA_CONFLICT | conflicting accesses to window | 
| MPI_ERR_RMA_SYNC | wrong synchronization of RMA calls |