fn variable()

in gad/src/core.rs [17:37]

• 15 lines of code
• 3 McCabe index (conditional complexity)

    fn variable(&mut self, data: Data) -> Self::Value;

    /// A non-differential input to the computation.
    fn constant(&mut self, data: Data) -> Self::Value;

    /// Compute the sum of two values `v1 + v2`.
    fn add(&mut self, v1: &Self::Value, v2: &Self::Value) -> Result<Self::Value>;

    /// Compute the sum of several values.
    fn add_all(&mut self, values: &[&Self::Value]) -> Result<Self::Value>
    where
        Self::Value: Clone,
    {
        let mut values = values.iter();
        let mut result: Self::Value =
            (*values.next().ok_or_else(|| Error::empty(func_name!()))?).clone();
        for value in values {
            result = self.add(&result, *value)?;
        }
        Ok(result)
    }