NS_OPTIONS matches

Question

I am trying to implement the following typedef

typedef NS_OPTIONS (NSInteger, MyCellCorners) {
    MyCellCornerTopLeft,
    MyCellCornerTopRight,
    MyCellCornerBottomLeft,
    MyCellCornerBottomRight,
};

and correctly assign a value with

MyCellCorners cellCorners = (MyCellCornerTopLeft | MyCellCornerTopRight);

when drawing my cell, how can I check which of the options match so I can correctly draw it.