joinToString.h

#pragma once
 
#include <numeric>
#include <string>
 
namespace CesiumUtility {
template <class TIterator>
std::string
joinToString(TIterator begin, TIterator end, const std::string& separator) {
  if (begin == end)
    return std::string();
 
  std::string first = *begin;
 
  return std::accumulate(
      ++begin,
      end,
      std::move(first),
      [&separator](const std::string& acc, const std::string& element) {
        return acc + separator + element;
      });
}
 
template <class TCollection>
std::string joinToString(TCollection collection, const std::string& separator) {
  return joinToString(collection.cbegin(), collection.cend(), separator);
}
} // namespace CesiumUtility