Read a text file

cpp_read_file.cpp

#include <iostream>
#include <string>
#include <fstream>

int main() {

  std::string filepath = "data.txt";
  std::ifstream ifs(filepath.c_str(), std::ios_base::in | std::ios_base::binary);
  if (ifs) {

    ifs.seekg(0, std::ios_base::end);
    size_t length = static_cast<size_t>(ifs.tellg());
    ifs.seekg(0, std::ios_base::beg);

    std::string text;
    text.resize(length);

    ifs.read(&text[0], length);

    std::cout << text << std::endl;

    ifs.close();
  }

  return 0;
}