Changelog

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

This project adheres to Semantic Versioning.

Unreleased

0.4.6 - 2021-03-27

• Fix compatibility issues with const generics.

0.4.5 - 2021-01-05

• Exclude unneeded files from crates.io.

0.4.4 - 2020-11-02

• Accept const_fn attribute with no arguments and functions without const keyword. This allows const_fn to be used as an optional dependency.

  #[cfg_attr(feature = "...", const_fn::const_fn)]
  pub fn func() {
      /* ... */
  }
  

0.4.3 - 2020-11-02

• const_fn no longer fails to compile if unable to determine rustc version. Instead, it now displays a warning.

• const_fn no longer relies on debug print format.

0.4.2 - 2020-08-31

• Improve error messages when failed to parse version information.

• Fix compile failure with cargo installed by yum.

0.4.1 - 2020-08-25

• Fix compile failure with non-cargo build systems.

0.4.0 - 2020-08-25

• Add support for version-based code generation. The following conditions are available:

  use const_fn::const_fn;
  
  // function is `const` on specified version and later compiler (including beta and nightly)
  #[const_fn("1.36")]
  pub const fn version() {
      /* ... */
  }
  
  // function is `const` on nightly compiler (including dev build)
  #[const_fn(nightly)]
  pub const fn nightly() {
      /* ... */
  }
  
  // function is `const` if `cfg(...)` is true
  #[const_fn(cfg(...))]
  pub const fn cfg() {
      /* ... */
  }
  
  // function is `const` if `cfg(feature = "...")` is true
  #[const_fn(feature = "...")]
  pub const fn feature() {
      /* ... */
  }
  

• Improve compile time by removing proc-macro related dependencies (#18, #20).

0.3.1 - 2019-12-09

• Updated syn-mid to 0.5.

0.3.0 - 2019-10-20

• #[const_fn] attribute may only be used on const functions.

0.2.1 - 2019-08-15

• Updated proc-macro2, syn, and quote to 1.0.

• Updated syn-mid to 0.4.

0.2.0 - 2019-06-16

• Transition to Rust 2018. With this change, the minimum required version will go up to Rust 1.31.

0.1.7 - 2019-02-18

• Update syn-mid version to 0.3

0.1.6 - 2019-02-15

• Reduce compilation time

0.1.5 - 2019-02-15

• Revert 0.1.4

0.1.4 - 2019-02-15

Note: This release has been yanked.

• Reduce compilation time

0.1.3 - 2019-01-06

• Fix dependencies

0.1.2 - 2018-12-27

• Improve error messages

0.1.1 - 2018-12-27

• Improve an error message

0.1.0 - 2018-12-25

Initial release