Method operator<

src/script/descriptor.cpp:192–199

Compare two public keys represented by this provider. * Used by the Miniscript descriptors to check for duplicate keys in the script. */

     * Used by the Miniscript descriptors to check for duplicate keys in the script.
     */
    bool operator<(PubkeyProvider& other) const {
        FlatSigningProvider dummy;

        std::optional<CPubKey> a = GetPubKey(0, dummy, dummy);
        std::optional<CPubKey> b = other.GetPubKey(0, dummy, dummy);

        return a < b;
    }

    /** Derive a public key and put it into out.
     *  read_cache is the cache to read keys from (if not nullptr)