RsBundle  Diff

    }

    /// Solve the problem but stop after `niter` iterations.
    ///
    /// The function returns `Ok(true)` if the termination criterion
    /// has been satisfied. Otherwise it returns `Ok(false)` or an
    /// error code.
    ///
    /// If this function is called again, the solution process is
    /// continued from the previous point. Because of this one must
    /// call `init()` before the first call to this function.
    pub fn solve_iter(&mut self, niter: usize) -> Result<bool> {
        try!(self.init());
        for _ in 0..niter {
            let mut term = try!(self.step());
            let changed = try!(self.update_problem(term));
            // do not stop if the problem has been changed
            if changed && term == Step::Term {
                term = Step::Null
            }