mirror of
https://github.com/bitcoinbook/bitcoinbook
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29 lines
982 B
C++
29 lines
982 B
C++
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/*
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Display the genesis block message by Satoshi.
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*/
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#include <iostream>
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#include <bitcoin/bitcoin.hpp>
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int main()
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{
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// Create genesis block.
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bc::block_type block = bc::genesis_block();
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// Genesis block contains a single coinbase transaction.
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assert(block.transactions.size() == 1);
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// Get first transaction in block (coinbase).
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const bc::transaction_type& coinbase_tx = block.transactions[0];
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// Coinbase tx has a single input.
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assert(coinbase_tx.inputs.size() == 1);
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const bc::transaction_input_type& coinbase_input = coinbase_tx.inputs[0];
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// Convert the input script to its raw format.
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const bc::data_chunk& raw_message = save_script(coinbase_input.script);
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// Convert this to an std::string.
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std::string message;
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message.resize(raw_message.size());
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std::copy(raw_message.begin(), raw_message.end(), message.begin());
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// Display the genesis block message.
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std::cout << message << std::endl;
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return 0;
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}
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