pub unsafe extern "C" fn CPXsetbranchcallbackfunc(
env: CPXENVptr,
branchcallback: Option<unsafe extern "C" fn(xenv: CPXCENVptr, cbdata: *mut c_void, wherefrom: c_int, cbhandle: *mut c_void, brtype: c_int, brset: c_int, nodecnt: c_int, bdcnt: c_int, nodebeg: *const c_int, xindex: *const c_int, lu: *const c_char, bd: *const f64, nodeest: *const f64, useraction_p: *mut c_int) -> c_int>,
cbhandle: *mut c_void,
) -> c_int