Function cspice_sys::fovray_c

pub unsafe extern "C" fn fovray_c(
    inst: *mut ConstSpiceChar, 
    raydir: *mut ConstSpiceDouble, 
    rframe: *mut ConstSpiceChar, 
    abcorr: *mut ConstSpiceChar, 
    obsrvr: *mut ConstSpiceChar, 
    et: *mut SpiceDouble, 
    visible: *mut SpiceBoolean
)