Method cardinality

crates/openquant/src/combinatorial_optimization.rs:64–72

(self)

    }

    fn cardinality(self) -> Result<usize, CombinatorialOptimizationError> {
        self.validate()?;
        let span = i128::from(self.upper) - i128::from(self.lower);
        let step = i128::from(self.step);
        let count = span / step + 1;
        usize::try_from(count).map_err(|_| {
            CombinatorialOptimizationError::InvalidInput("variable cardinality does not fit usize")
        })
    }

    fn values(self) -> Result<Vec<i64>, CombinatorialOptimizationError> {
        self.validate()?;