pub unsafe extern "C" fn dd_CheckEquality(
d_size: dd_colrange,
RP1: *mut dd_RayPtr,
RP2: *mut dd_RayPtr,
equal: *mut dd_boolean,
)pub unsafe extern "C" fn dd_CheckEquality(
d_size: dd_colrange,
RP1: *mut dd_RayPtr,
RP2: *mut dd_RayPtr,
equal: *mut dd_boolean,
)