Denormals = enum
  Ignore, SetZero, Calculate

Float16 = distinct uint16

proc toFloat16[T](n: T; denormals: static[Denormals] = Ignore;
                  clamp: static[bool] = false): Float16

proc toFloat32(n: Float16; denormals: static[Denormals] = Ignore): float32

template `$`(n: Float16): string

template toFloat(n: Float16; denormals: static[Denormals] = Ignore): float

template toFloat64(n: Float16; denormals: static[Denormals] = Ignore): float64