func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
	return errOpNoSupport
}
LeaveSourceSpecificGroup leaves the source-specific group on the
interface ifi.
package ipv4
import "net"
func (c *dgramOpt) MulticastTTL() (int, error) {
	return 0, errOpNoSupport
}
func (c *dgramOpt) SetMulticastTTL(ttl int) error {
	return errOpNoSupport
}
func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
	return nil, errOpNoSupport
}
func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
	return errOpNoSupport
}
func (c *dgramOpt) MulticastLoopback() (bool, error) {
	return false, errOpNoSupport
}
func (c *dgramOpt) SetMulticastLoopback(on bool) error {
	return errOpNoSupport
}
func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
	return errOpNoSupport
}
func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
	return errOpNoSupport
}
func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
	return errOpNoSupport
}