Move sr-arithmetic to a new crate and add in a fuzzer (#3799)

* Split up sr_arithmetic.rs * Add some basic fuzzing * Add more tests * Add printing to fuzzing * Clean things up * Remove arbitrary * Remove comments * More cleaning, fix small error that was causing a panic * Add rational128 * Remove old random tests * introduce panic * fuzzing should panic properly * Bit of cleanup * Add a test uncovered via fuzzing that fails! * Few small changes * Move sr-arithmetic to its own crate * Fix fuzzing * Got rid of fuzzer Cargo.lock * Added no_std * re-export assert_eq_error_rate * bump impl and spec version * re add convert into * Add an ignore to the test * Enabled benchmarking * Reindent * Clean up biguint fuzzer * Clean up biguint more * shuffle sr-primitives/traits about * Remove unused dependencies * Apply clippy suggestions * upgrade primitive-types versions * Run tests against num-bigint * Get rid of allocation in assert_biguints_eq * Add an optimisation to multiply_by_rational * rename parts_per_x -> per_things * Change fuzzer cargo.toml * Remove allocation from BigUint PartialEq impl * Remove accidental indentation * Renmove Lazy and Convert traits * Copy assert_eq_error_rate macro back to sr-primitives * Add documentation to fuzzers * fix sr-primitives assert_eq_error_rate * add cfg(test) * Update core/sr-arithmetic/src/traits.rs Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * Update core/sr-arithmetic/src/traits.rs Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * Update core/sr-arithmetic/fuzzer/src/biguint.rs Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * Allow rounding up in rational128 * Make changes to biguint.rs * Update core/sr-arithmetic/src/traits.rs Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * Final touches * Convert to num_bigint::BigUint to compare * remove unused mut * more small changes * shuffle sr-primitives trait imports * more code review * move assert_eq_error_rate to lib.rs * Update core/sr-arithmetic/fuzzer/src/biguint.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Get rid of S * Simplify rational128 honggfuzz link * Insignificantly change rational128 fuzzing code * Slightly tidy up some of the arithmetic logic * Get rid of sr_arithmetic again(?) and fix sr-primitives/weights * Apply updates to sr_arithmetic.rs to crate
2026-07-06 14:57:27 +00:00 · 2019-10-19 08:36:43 +01:00
parent 356015e450
commit 141a64cf41
20 changed files with 2643 additions and 2339 deletions
@@ -0,0 +1,48 @@
+// Copyright 2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Minimal fixed point arithmetic primitives and types for runtime.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+// to allow benchmarking
+#![cfg_attr(feature = "bench", feature(test))]
+#[cfg(feature = "bench")] extern crate test;
+
+/// Copied from `sr-primitives` and documented there.
+#[cfg(test)]
+macro_rules! assert_eq_error_rate {
+	($x:expr, $y:expr, $error:expr $(,)?) => {
+		assert!(
+			($x) >= (($y) - ($error)) && ($x) <= (($y) + ($error)),
+			"{:?} != {:?} (with error rate {:?})",
+			$x,
+			$y,
+			$error,
+		);
+	};
+}
+
+pub mod biguint;
+pub mod helpers_128bit;
+pub mod traits;
+mod per_things;
+mod fixed64;
+mod rational128;
+
+pub use fixed64::Fixed64;
+pub use per_things::{Percent, Permill, Perbill, Perquintill};
+pub use rational128::Rational128;