fayalite 0.2.0

Hardware Description Language embedded in Rust, using FIRRTL's semantics
Documentation 
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// SPDX-License-Identifier: LGPL-3.0-or-later
// See Notices.txt for copyright information
use std::cmp::Ordering;

pub const fn const_u8_cmp(a: u8, b: u8) -> Ordering {
    if a < b {
        Ordering::Less
    } else if a > b {
        Ordering::Greater
    } else {
        Ordering::Equal
    }
}

pub const fn const_usize_cmp(a: usize, b: usize) -> Ordering {
    if a < b {
        Ordering::Less
    } else if a > b {
        Ordering::Greater
    } else {
        Ordering::Equal
    }
}

pub const fn const_bytes_cmp(a: &[u8], b: &[u8]) -> Ordering {
    let mut i = 0;
    while i < a.len() && i < b.len() {
        match const_u8_cmp(a[i], b[i]) {
            Ordering::Equal => {}
            retval => return retval,
        }
        i += 1;
    }
    const_usize_cmp(a.len(), b.len())
}

pub const fn const_str_cmp(a: &str, b: &str) -> Ordering {
    const_bytes_cmp(a.as_bytes(), b.as_bytes())
}

pub const fn const_str_array_is_strictly_ascending(a: &[&str]) -> bool {
    let mut i = 1;
    while i < a.len() {
        match const_str_cmp(a[i - 1], a[i]) {
            Ordering::Less => {}
            _ => return false,
        }
        i += 1;
    }
    true
}