Function SCIPincludeHeur 

pub unsafe extern "C" fn SCIPincludeHeur(
    scip: *mut SCIP,
    name: *const c_char,
    desc: *const c_char,
    dispchar: c_char,
    priority: c_int,
    freq: c_int,
    freqofs: c_int,
    maxdepth: c_int,
    timingmask: SCIP_HEURTIMING,
    usessubscip: c_uint,
    heurcopy: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurfree: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurinit: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurexit: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurinitsol: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurexitsol: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR) -> SCIP_RETCODE>,
    heurexec: Option<unsafe extern "C" fn(scip: *mut SCIP, heur: *mut SCIP_HEUR, heurtiming: SCIP_HEURTIMING, nodeinfeasible: c_uint, result: *mut SCIP_RESULT) -> SCIP_RETCODE>,
    heurdata: *mut SCIP_HEURDATA,
) -> SCIP_RETCODE

creates a primal heuristic and includes it in SCIP.

@note method has all heuristic callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeHeurBasic() and setter functions if you seek for a method which is less likely to change in future releases

@return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref SCIP_Retcode “SCIP_RETCODE” for a complete list of error codes.

@pre This method can be called if @p scip is in one of the following stages: - \ref SCIP_STAGE_INIT - \ref SCIP_STAGE_PROBLEM