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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased - ReleaseDate

0.9.5 - 2026-02-03

Fixed

  • Remove doc_auto_cfg in order to fix docs.rs builds on Rust v1.92.

0.9.4 - 2026-02-03

Added

  • Support for rkyv based (de)serialization (#44).

0.9.3 - 2025-01-18

Changed

  • Replace i256 implementation to improve performance of arithmetic operations for 128-bit based FixedPoint.

0.9.2 - 2023-03-02

Added

  • Add FixedPoint::to_decimal (#37).
  • Add the schemars feature (#36).

0.9.1 - 2022-10-06

Added

  • Add repr(transparent) (#31).

0.9.0 - 2022-09-08

Added

  • A new parsing method: from_str_exact.
  • serde::repr_option, serde::float_option and serde::str_option.
  • The quick-xml feature to support tag parsing.

Changed

  • BREAKING CHANGE: FromStr and Deserialize rounds to the nearest value.
  • BREAKING CHANGE: serde::as_f64 is renamed to serde::float, serde::as_string to serde::str and serde::as_repr to serde::repr.
  • BREAKING CHANGE: the serde feature is not enabled by default anymore.
  • BREAKING CHANGE: the parity feature doesn't enable parity-scale-codec/derive anymore.
  • Deserialize from strings, floats and integers for human readable formats.
  • Now serde::* work for wrappers around FixedPoint too.

0.8.0 - 2022-06-23

Added

  • A new round mode: RoundMode::Nearest.
  • New methods: signum, floor, ceil and round.

Changed

  • Replace the RoundingSqrt trait with the rsqrt method.

Removed

  • Deprecated methods rounding_from_f64 and to_f64. Use TryFrom<f64> and Into<f64> instead.
  • Remove rounding_to_i64. Use the integral method instead.

0.7.0 - 2022-05-15

Fixed

  • Rare "from f64" bugs (#25).

Changed

  • Update parity-scale-codec to v3 (#26).
  • Optimize From<f64> instance (#25).
  • Optimize serialization to string and Display instance (#29).

0.6.1 - 2021-12-30

Changed

  • serde: can be used in no_std environments (#24).
  • TryFrom<f64> can be used in no_std environments (#22).

0.6.0 - 2021-07-01

Added

  • serde::as_string, serde::as_float, serde::as_repr.
  • i64, i32, i16 features.

Fixed

  • To/from f64 conversion (#25).

Changed

  • No implementation is provided by default, use i64 or i128 features.
  • (De)serialize FixedPoint as a string in case of human readable formats.
  • ConvertError and FromDecimalError are merged into one opaque ConvertError type.

0.5.1 - 2021-05-28

Added

  • docs: specify required features for feature-gated instances.

0.5.0 - 2021-03-24

Added

  • Trait ops::RoundingSqrt and its implementation for FixedPoint and ints (#17).
  • ArithmeticError::DomainViolation error for attempts to compute a square root of a negative number (#17).

Changed

  • FixedPoint::half_sum now takes RoundMode parameter (#17).

0.4.0 - 2021-03-05

Changed

  • Update parity-scale-codec to v2 (#16).

0.3.1 - 2021-02-16

Added

  • Method FixedPoint::into_bits (#14).
  • More thorough feature testing (#13).
  • "Compile fail" test for fixnum_const! macro (#13).

Changed

  • Unit tests for default fixnum feature set and i128 feature were unified (#13).

0.3.0 - 2021-01-25

Removed

  • Support of fixnum::ops::Numeric (#10).

Added

  • Traits ops::One, ops::Zero, ops::Bounded.
  • Saturating operations (#10):
    • CheckedAdd::saturating_add,
    • CheckedMul::saturating_mul,
    • CheckedSub::saturating_sub,
    • RoundingMul::saturating_rmul.

0.2.3 - 2020-12-30

Added

  • Const fixed-point literal macro fixnum_const! (#11).
  • Compact implementation for parity feature (#9).
  • Clone implementation for errors (#9).

Fixed

  • parity's Encode and Decode impls (#9).

0.2.2 - 2020-12-09

Added

  • parity-scale-codec support under the parity feature: Encode and Decode instances (#8).
  • fixnum! macro for compile-time-checked fixed-point "literals".
  • .as_str() was implemented for errors (#8).

Changed

  • Added $crate prefix for impl_op macro (#8).

0.2.1 - 2020-12-04

Changed

  • Docs' links were fixed (#6).

0.2.0 - 2020-12-04

Removed

  • Support of fixnum::ops::CheckedDiv (#5).

Changed

  • There's no need in uint crate anymore. This significantly helps in no_std environments (#5).

0.1.0 - 2020-12-03

Added

  • Initial release.