stringデータをstdを使ってコピー

copy_str.cpp

#include <algorithm>
#include <iostream>
#include <string>


int main() 
{
  std::string text = "abcde";
  std::string copy_text = "";
  std::copy(text.begin(), text.begin()+3, std::inserter(copy_text, copy_text.begin()));
  std::cout << copy_text << std::endl;
  return 0;
}