Function fitsio_sys::ffxypx

pub unsafe extern fn ffxypx(xpos: c_double, ypos: c_double, xref: c_double, yref: c_double, xrefpix: c_double, yrefpix: c_double, xinc: c_double, yinc: c_double, rot: c_double, type_: *mut c_char, xpix: *mut c_double, ypix: *mut c_double, status: *mut c_int) -> c_int