Libbitcoin Common: Difference between revisions
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The common [https://github.com/libbitcoin/libbitcoin libbitcoin] library is a dependency of all others with the exception of [[Libbitcoin_Consensus|libbitcoin-consensus]]. It was the first library created and originally contained the core functionality of all of the others. | The common [https://github.com/libbitcoin/libbitcoin-system libbitcoin-system] (formerly "libbitcoin") library is a dependency of all others with the exception of [[Libbitcoin_Consensus|libbitcoin-consensus]]. It was the first library created and originally contained the core functionality of all of the others. | ||
==Example== | ==Example== | ||
#include <cstdint> | |||
#include <iostream> | #include <iostream> | ||
#include <string> | #include <string> | ||
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int main() | int main() | ||
{ | { | ||
const auto block = bc:: | const auto block = bc::chain::block::genesis_mainnet(); | ||
const auto& tx = block.transactions | const auto& tx = block.transactions().front(); | ||
const auto& input = tx.inputs | const auto& input = tx.inputs().front(); | ||
const auto script = | const auto script = input.script().to_data(false); | ||
std::string message(script.begin(), script.end()); | std::string message(script.begin() + sizeof(uint64_t), script.end()); | ||
std::cout << message << std::endl; | std::cout << message << std::endl; | ||
return 0; | return 0; | ||
} | } | ||
The Times 03/Jan/2009 Chancellor on brink of second bailout for banks | |||
==Bitcoin Related Features== | ==Bitcoin Related Features== | ||
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==General Purpose Features== | ==General Purpose Features== | ||
* [https://github.com/libbitcoin/libbitcoin-system/wiki Documentation] | |||
* Logging utilities | * Logging utilities | ||
* [http://en.wikipedia.org/wiki/Radix_tree Patricia Trie] template with binary alphabet | * [http://en.wikipedia.org/wiki/Radix_tree Patricia Trie] template with binary alphabet | ||
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* Uses C++11 advancements and restricts use of pointers and exceptions | * Uses C++11 advancements and restricts use of pointers and exceptions | ||
==Dependencies== | ==Dependencies (Version2)== | ||
* [http://www.boost.org boost] | * [http://www.boost.org boost] | ||
* [https://github.com/bitcoin/secp256k1 libsecp256k1] | * [https://github.com/bitcoin/secp256k1 libsecp256k1] | ||
* [http://site.icu-project.org ICU] (optional) | * [http://site.icu-project.org ICU] (optional) | ||
==Dependencies (Version3)== | |||
* [http://www.boost.org boost] | |||
* [https://github.com/bitcoin/secp256k1 libsecp256k1] | |||
* [http://site.icu-project.org ICU] (optional) | |||
* [http://www.libpng.org/pub/png/libpng.html libpng] (optional) | |||
* [https://fukuchi.org/works/qrencode libqrencode] (optional) | |||
==See Also== | ==See Also== | ||
Latest revision as of 01:38, 9 March 2021
The common libbitcoin-system (formerly "libbitcoin") library is a dependency of all others with the exception of libbitcoin-consensus. It was the first library created and originally contained the core functionality of all of the others.
Example
#include <cstdint>
#include <iostream>
#include <string>
#include <bitcoin/bitcoin.hpp>
// Extract Satoshi's words.
int main()
{
const auto block = bc::chain::block::genesis_mainnet();
const auto& tx = block.transactions().front();
const auto& input = tx.inputs().front();
const auto script = input.script().to_data(false);
std::string message(script.begin() + sizeof(uint64_t), script.end());
std::cout << message << std::endl;
return 0;
}
The Times 03/Jan/2009 Chancellor on brink of second bailout for banks
Bitcoin Related Features
- Key formats (raw, BIP32, WIF, compressed/uncompressed, minikey)
- Encoding functions (base 2/10/16/58/64/85)
- Hash functions (ripemd160, sha1, sha256, sha512, hmac_sha256, hmac_sha512, pkcs5_pbkdf2_hmac_sha512)
- URL parsing (BIP21 and BIP72)
- Mnemonic functions (BIP39)
- All published mnemonic dictionaries
- Curve math, deterministic ECDSA, verification and encryption functions
- Address functions (P2PKH and P2SH/BIP16)
- Stealth addresses functions[1] for wallets and blockchain search
- Wire and text serializable type library (P2P protocol)
- Bitcoin script engine (see libbitcoin-consensus for more information)
- Asynchronous P2P networking stack built on ASIO (moved to libbitcoin-network in version 3)
General Purpose Features
- Documentation
- Logging utilities
- Patricia Trie template with binary alphabet
- UTF8 Everywhere tools and integration for Windows
- Command line and configuration file utilities based on boost program options
Build and Quality Control
- Autotools builds for GCC/Clang
- All build artifacts generated by libbitcoin-build
- Continuous integration builds via Travis-CI
- Automated test coverage reporting via Coverall
- Visual Studio 2013 project and solution files
- Support for 32/64 bit processors and endianness differences
- Uses C++11 advancements and restricts use of pointers and exceptions
Dependencies (Version2)
- boost
- libsecp256k1
- ICU (optional)
Dependencies (Version3)
- boost
- libsecp256k1
- ICU (optional)
- libpng (optional)
- libqrencode (optional)