in gad/src/core.rs [221:237]
fn add(&mut self, v1: &Value<D>, v2: &Value<D>) -> Result<Value<D>> {
let result = self.eval().add(v1.data(), v2.data())?;
let value = self.make_node(result, vec![v1.input(), v2.input()], {
let id1 = v1.id();
let id2 = v2.id();
move |graph, store, gradient| {
if let Some(id) = id1 {
store.add_gradient(graph, id, &gradient)?;
}
if let Some(id) = id2 {
store.add_gradient(graph, id, &gradient)?;
}
Ok(())
}
});
Ok(value)
}