erfa 0.2.1

A pure-Rust equivalent to the ERFA C library.
Documentation 
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use criterion::*;

use erfa::{aliases::eraGd2gc, time::gst06a, Ellipsoid};

fn erfa(c: &mut Criterion) {
    let mwa_latitude_radians = -0.4660608448386394;
    let mwa_longitude_radians = 2.0362898668561042;
    let mwa_altitude_metres = 377.827;
    let mut mwa_xyz: [f64; 3] = [0.0; 3];

    c.bench_function("erfa-sys::eraGd2gc", |b| {
        b.iter(|| {
            unsafe {
                erfa_sys::eraGd2gc(
                    Ellipsoid::WGS84 as i32, // ellipsoid identifier (Note 1)
                    mwa_longitude_radians,   // longitude (radians, east +ve)
                    mwa_latitude_radians,    // latitude (geodetic, radians, Note 3)
                    mwa_altitude_metres,     // height above ellipsoid (geodetic, Notes 2,3)
                    mwa_xyz.as_mut_ptr(),    // geocentric vector (Note 2)
                );
            }
        })
    });

    c.bench_function("eraGd2gc", |b| {
        b.iter(|| {
            eraGd2gc(
                Ellipsoid::WGS84,
                mwa_longitude_radians,
                mwa_latitude_radians,
                mwa_altitude_metres,
            )
            .unwrap();
        })
    });

    c.bench_function("erfa-sys::gst06a", |b| {
        b.iter(|| unsafe {
            erfa_sys::eraGst06a(2451545.0, -1421.3, 2451545.0, -1421.3);
        })
    });

    c.bench_function("gst06a", |b| {
        b.iter(|| {
            gst06a(2451545.0, -1421.3, 2451545.0, -1421.3);
        })
    });
}

criterion_group!(benches, erfa);
criterion_main!(benches);