:sig
u64 memcache_connect(String host = "127.0.0.1", u16 port = 11211)

:params
host : optional host name of the memcache server, defaults to local address 127.0.0.1
port : optional memcache server's port, defaults to 11211
return value : the connection handle (or -1 if an error occurred)

:see
>memcache

:content
Connects to a Memcache server instance.

If the connection fails, the function returns `-1`.

:example
u64 conn = memcache_connect();
print(conn != 0 ? "connected to memcached" : "no memcached server reachable", "\n");