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