Function SCIPcreateEmptyNlRow 

pub unsafe extern "C" fn SCIPcreateEmptyNlRow(
    scip: *mut SCIP,
    nlrow: *mut *mut SCIP_NLROW,
    name: *const c_char,
    lhs: f64,
    rhs: f64,
) -> SCIP_RETCODE

creates and captures a nonlinear row without any coefficients

@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 SCIP is in one of the following stages: - \ref SCIP_STAGE_PRESOLVED - \ref SCIP_STAGE_INITSOLVE - \ref SCIP_STAGE_SOLVING