rust/build.rs at 2615971f55e24570805180b820e85457b74ba1be - rust - Gitea: Git with a cup of tea

itsscb/rust

mirror of https://github.com/rust-lang/rust.git synced 2025-10-31 04:57:19 +00:00

Trevor Gross dfa694a8e4 Add a utility crate for quick evaluation

Introduce a simple binary that can run arbitrary input against any of
the available implementations (musl, MPFR, our libm). This provides an
easy way to check results, or run specific cases against a debugger.

Examples:

    $ cargo run -p util -- eval libm pow 1.6 2.4
    3.089498284311124
    $ cargo run -p util -- eval mpfr pow 1.6 2.4
    3.089498284311124
    $ cargo run -p util -- eval musl tgamma 1.2344597839132
    0.9097442657960874
    $ cargo run -p util -- eval mpfr tgamma 1.2344597839132
    0.9097442657960874
    $ cargo run -p util -- eval libm tgamma 1.2344597839132
    0.9097442657960871
    $ cargo run -p util -- eval musl sincos 3.1415926535
    (8.979318433952318e-11, -1.0)

2025-01-13 04:43:48 -05:00

10 lines

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Rust

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 #![allow(unexpected_cfgs)]
 #[path = "../../configure.rs"]
 mod configure;
 fn main() {
     let cfg = configure::Config::from_env();
     configure::emit_libm_config(&cfg);
 }