swift - How to cast from UInt16 to NSNumber -

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i have uint16 variable pass legacy function requires nsnumber.

if try:

var castasnsnumber : nsnumber = myuint16

i compiler error 'uint16' not convertible 'nsnumber'

question

how can recast nsnumber?

var castasnsnumber = nsnumber(unsignedshort: myuint16)

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