fn insert_equation()

in src/builder.rs [241:257]

• 16 lines of code
• 5 McCabe index (conditional complexity)

    fn insert_equation(&mut self, mut eq: Equation<W>) -> bool {
        loop {
            if eq.is_zero() {
                return eq.b == 0; /* redundant (b=0) or inconsistent (b!=0) */
            }
            if eq.s >= self.rows.len() {
                // TODO: could be smarter here
                self.rows.resize_with(eq.s + 1, Equation::zero);
            }
            let cur = &mut self.rows[eq.s];
            if cur.is_zero() {
                *cur = eq;
                return true; /* inserted */
            }
            eq.add(cur);
        }
    }