Convert an int into an array of its respective enum flags

IntToFlagsArray.cs

//the flags
[Flags]
public enum Role
{
  None = 0x0,
  User = 0x1,
  Administrator = 0x2,
  SysAdmin = 0x4
}

//lets say im a user and administrator
var int myRolesValue = 3;
var allRoles = Enum.GetValues(typeof(Role));
var myRoles = new List<Role>();
foreach (var role in allRoles)
{
    if(((int)role | myRolesValue) == myRolesValue)
        myRoles.Add((Role)role);
}