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// Copyright (c) 2009-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_CRYPTO_HEX_BASE_H
#define BITCOIN_CRYPTO_HEX_BASE_H
#include <span.h>
#include <cstddef>
#include <cstdint>
#include <string>
/**
* Convert a span of bytes to a lower-case hexadecimal string.
*/
std::string HexStr(const Span<const uint8_t> s);
inline std::string HexStr(const Span<const char> s) { return HexStr(MakeUCharSpan(s)); }
inline std::string HexStr(const Span<const std::byte> s) { return HexStr(MakeUCharSpan(s)); }
signed char HexDigit(char c);
#endif // BITCOIN_CRYPTO_HEX_BASE_H
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