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const-oid 0.10.0-rc.1

Const-friendly implementation of the ISO/IEC Object Identifier (OID) standard as defined in ITU X.660, with support for BER/DER encoding/decoding as well as heapless no_std (i.e. embedded) support
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//! Checked arithmetic helpers.

/// `const fn`-friendly checked addition helper.
macro_rules! checked_add {
    ($a:expr, $b:expr) => {
        match $a.checked_add($b) {
            Some(n) => n,
            None => return Err(Error::Length),
        }
    };
}