mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-26 15:51:08 +00:00
Xiliang Chen
d1261d3482
* add fixed128 * fix build * re-export * fix test * saturating_pow * Update primitives/arithmetic/src/fixed128.rs Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com> Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
59 lines
1.7 KiB
Rust
59 lines
1.7 KiB
Rust
// Copyright 2019-2020 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)]
|
|
|
|
/// Copied from `sp-runtime` and documented there.
|
|
#[macro_export]
|
|
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 fixed128;
|
|
mod rational128;
|
|
|
|
pub use fixed64::Fixed64;
|
|
pub use fixed128::Fixed128;
|
|
pub use per_things::{PerThing, Percent, PerU16, Permill, Perbill, Perquintill};
|
|
pub use rational128::Rational128;
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn peru16_rational_does_not_overflow() {
|
|
// A historical example that will panic only for per_thing type that are created with
|
|
// maximum capacity of their type, e.g. PerU16.
|
|
let _ = PerU16::from_rational_approximation(17424870u32, 17424870);
|
|
}
|
|
}
|