| #![feature(prelude_import)] |
| #![no_std] |
| //@ needs-enzyme |
| |
| #![feature(autodiff)] |
| #[macro_use] |
| extern crate std; |
| #[prelude_import] |
| use ::std::prelude::rust_2015::*; |
| //@ pretty-mode:expanded |
| //@ pretty-compare-only |
| //@ pp-exact:inherent_impl.pp |
| |
| use std::autodiff::autodiff_reverse; |
| |
| struct Foo { |
| a: f64, |
| } |
| |
| trait MyTrait { |
| fn f(&self, x: f64) |
| -> f64; |
| fn df(&self, x: f64, seed: f64) |
| -> (f64, f64); |
| } |
| |
| impl MyTrait for Foo { |
| #[rustc_autodiff] |
| fn f(&self, x: f64) -> f64 { |
| self.a * 0.25 * (x * x - 1.0 - 2.0 * x.ln()) |
| } |
| #[rustc_autodiff(Reverse, 1, Const, Active, Active)] |
| fn df(&self, x: f64, dret: f64) -> (f64, f64) { |
| ::core::intrinsics::autodiff(Self::f::<>, Self::df::<>, |
| (self, x, dret)) |
| } |
| } |