broadcast-common 12.0.0

Foundation for the rust-broadcast crates: symmetric Parse/Serialize traits, CRC-32/MPEG-2, BCD + MJD time codecs, bit I/O, 33-bit/PCR clock arithmetic, checked field widths, container-mux and Stage traits. no_std + alloc.
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//! The decimal time-unit ratios every crate that converts between seconds, milliseconds,
//! microseconds and nanoseconds uses, declared once.
//!
//! All are `u64`; a caller that works in another integer or float width casts at the use
//! (`NANOS_PER_SEC as i128`). [`crate::timescale::MICROS_PER_SECOND`] is the `u32` spelling of
//! [`MICROS_PER_SEC`] the rate-conversion functions take.

/// Milliseconds in a second.
pub const MILLIS_PER_SEC: u64 = 1_000;
/// Microseconds in a millisecond.
pub const MICROS_PER_MILLI: u64 = 1_000;
/// Microseconds in a second.
pub const MICROS_PER_SEC: u64 = MILLIS_PER_SEC * MICROS_PER_MILLI;
/// Nanoseconds in a microsecond.
pub const NANOS_PER_MICRO: u64 = 1_000;
/// Nanoseconds in a millisecond.
pub const NANOS_PER_MILLI: u64 = NANOS_PER_MICRO * MICROS_PER_MILLI;
/// Nanoseconds in a second.
pub const NANOS_PER_SEC: u64 = NANOS_PER_MILLI * MILLIS_PER_SEC;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn the_ratios_are_the_decimal_units() {
        assert_eq!(MICROS_PER_SEC, 1_000_000);
        assert_eq!(NANOS_PER_MILLI, 1_000_000);
        assert_eq!(NANOS_PER_SEC, 1_000_000_000);
        assert_eq!(
            MICROS_PER_SEC,
            u64::from(crate::timescale::MICROS_PER_SECOND)
        );
    }
}