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35 lines
973 B
C
35 lines
973 B
C
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// Copyright (c) 2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_UTIL_STRING_H
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#define BITCOIN_UTIL_STRING_H
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#include <string>
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#include <vector>
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/**
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* Join a list of items
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*
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* @param list The list to join
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* @param separator The separator
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* @param unary_op Apply this operator to each item in the list
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*/
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template <typename T, typename UnaryOp>
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std::string Join(const std::vector<T>& list, const std::string& separator, UnaryOp unary_op)
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{
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std::string ret;
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for (size_t i = 0; i < list.size(); ++i) {
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if (i > 0) ret += separator;
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ret += unary_op(list.at(i));
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}
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return ret;
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}
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inline std::string Join(const std::vector<std::string>& list, const std::string& separator)
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{
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return Join(list, separator, [](const std::string& i) { return i; });
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}
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#endif // BITCOIN_UTIL_STRENCODINGS_H
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