util/std_util.cc

// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "util/std_util.h"

namespace openscreen {

std::string Join(const std::vector<std::string>& strings,
                 const char* delimiter) {
  size_t size_to_reserve = 0;
  for (const auto& piece : strings) {
    size_to_reserve += piece.length();
  }
  std::string out;
  out.reserve(size_to_reserve);
  auto it = strings.begin();
  out += *it;
  for (++it; it != strings.end(); ++it) {
    out += delimiter + *it;
  }

  return out;
}

}  // namespace openscreen