Changelog

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All notable changes to this project are documented here. The format follows Keep a Changelog, and this project uses Semantic Versioning.

1.0.2 - 2026-10-21

Fixed

  • The :tolerance config is now tracked by Mix. Before, it was read while your code compiled without Mix knowing, so changing it in config.exs could leave some modules using the old value until a forced recompile. Changing it now recompiles everything that uses the guards.
  • The README example is_eq_ish(0.1 + 0.2) == 0.3 did not compile. It is now is_eq_ish(0.1 + 0.2, 0.3).
  • The package's GitHub link pointed to the wrong repository.

Changed

  • A release now fails to boot if config/runtime.exs sets a different :tolerance than the one it was compiled with. Before, the runtime value was ignored without any warning. Guards cannot read config at runtime, so set the tolerance in config/config.exs instead. (mix run and iex -S mix still ignore the runtime value.)
  • Typespecs now accept any number as the tolerance, not just floats. Integer tolerances already worked.

Documentation

  • Explained that the tolerance is a compile-time setting, and where to set it.
  • Explained that the tolerance is a fixed amount, not a percentage, with examples of where that matters for very large and very small numbers.
  • Added this changelog.

1.0.1 - 2026-09-03

  • Version bump only.

1.0.0 - 2026-09-03

  • Initial release: is_eq_ish, is_not_eq_ish, is_gt_ish, is_gte_ish, is_lt_ish and is_lte_ish, usable as guards or ordinary expressions, with an optional tolerance argument and a configurable default.