Class Hierarchy
This inheritance list is sorted roughly, but not completely, alphabetically:

lmdb::cursor | Resource class for `MDB_cursor*` handles
lmdb::dbi | Resource class for `MDB_dbi` handles
lmdb::env | Resource class for `MDB_env*` handles
runtime_error |
lmdb::error | Base class for LMDB exception conditions
lmdb::fatal_error | Base class for fatal error conditions
lmdb::corrupted_error | Exception class for `MDB_CORRUPTED` errors
lmdb::panic_error | Exception class for `MDB_PANIC` errors
lmdb::version_mismatch_error | Exception class for `MDB_VERSION_MISMATCH` errors
lmdb::logic_error | Base class for logic error conditions
lmdb::runtime_error | Base class for runtime error conditions
lmdb::bad_dbi_error | Exception class for `MDB_BAD_DBI` errors
lmdb::key_exist_error | Exception class for `MDB_KEYEXIST` errors
lmdb::map_full_error | Exception class for `MDB_MAP_FULL` errors
lmdb::not_found_error | Exception class for `MDB_NOTFOUND` errors
lmdb::txn | Resource class for `MDB_txn*` handles
lmdb::val | Wrapper class for `MDB_val` structures