Make sure the sign bit of expm1 is correct for small arguments (#1482)
Make sure the sign bit of expm1 is correct for small arguments (#1482)


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