Function grb_sys2::GRBgetcallbackfunc
source ยท pub unsafe extern "C" fn GRBgetcallbackfunc(
model: *mut GRBmodel,
cb: *mut Option<extern "C" fn(_: *mut GRBmodel, _: *mut c_void, _: c_int, _: *mut c_void) -> c_int>
) -> c_int