calc_rational

CLI calculator for rational numbers.
git clone https://git.philomathiclife.com/repos/calc_rational
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build.rs (461B)

      1 use rustc_version::{version_meta, Channel};
      2 fn main() {
      3     println!("cargo::rustc-check-cfg=cfg(channel_dev,channel_nightly,channel_beta,channel_stable)");
      4     println!(
      5         "cargo::rustc-cfg=channel_{}",
      6         match version_meta().map_or(Channel::Stable, |meta| meta.channel) {
      7             Channel::Dev => "dev",
      8             Channel::Nightly => "nightly",
      9             Channel::Beta => "beta",
     10             Channel::Stable => "stable",
     11         }
     12     );
     13 }