Berkeley DB: Db::get_byteswapped
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++

# Db::get_byteswapped |

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    #include <db_cxx.h>

    int
    Db::get_byteswapped(int *isswapped);

# Description

The Db::get_byteswapped method stores 0 into the memory location referenced by isswapped if the underlying database files were created on an architecture of the same byte order as the current one, and stores 1 into the memory location referenced by isswapped if they were not (that is, big-endian on a little-endian machine, or vice versa). This field may be used to determine whether application data needs to be adjusted for this architecture or not.

The Db::get_byteswapped interface may not be called before the Db::open interface has been called.

# Errors

The Db::get_byteswapped method may fail and throw an exception or return a non-zero error for the following conditions:

EINVAL
  An invalid flag value or parameter was specified.

  Called before Db::open was called.

The Db::get_byteswapped method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the Db::get_byteswapped method may fail and either return DB_RUNRECOVERY or throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.

# Class

Db

# See Also

Databases and Related Methods`

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