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