# Function ethcore::snapshot::verify_old_block [−] [src]

    pub fn verify_old_block(rng: &mut OsRng,
                            header: &Header,
                            engine: &Engine,
                            chain: &BlockChain,
                            body: Option<&[u8]>,
                            always: bool)
                            -> Result<(), Error>

Verify an old block with the given header, engine, blockchain, body. If `always` is set, it will perform the fullest verification possible. If not, it will take a random sample to determine whether it will do heavy or light verification.

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