librdf_hash_bdb_exists

Name

librdf_hash_bdb_exists --  Test the existence of a key/value in the hash

Synopsis

int librdf_hash_bdb_exists (void* context, librdf_hash_datum * key, librdf_hash_datum * value);

Arguments

context

BerkeleyDB hash context

key

pointer to key

value

pointer to value (optional)

Description

The value can be NULL in which case the check will just be for the key.

Return value

>0 if the key/value exists in the hash, 0 if not, <0 on failure