memcached_return memcached_increment_by_key(memcached_st *ptr,
const char *master_key, size_t master_key_length,
const char *key, size_t key_length,
memcached_return memcached_increment_by_key(memcached_st *ptr,
const char *master_key, size_t master_key_length,
const char *key, size_t key_length,