fmath.h: bit_cast specializations should take refs, like the template (#3213)
fmath.h: bit_cast specializations should take refs, like the template (#3213)


OpenImageIO/oiio,lgritz/oiio,lgritz/oiio,OpenImageIO/oiio,lgritz/oiio,OpenImageIO/oiio,OpenImageIO/oiio,lgritz/oiio