Function execute_system_call

less_slow.cpp:6622–6630

auto to_microseconds(auto duration) { return std::chrono::duration_cast<std::chrono::microseconds>(duration); }

std::string execute_system_call(std::string const &command) {
    std::array<char, 1024> buffer {};
    std::string result;
    if (FILE *pipe = popen(command.c_str(), "r")) {
        while (fgets(buffer.data(), static_cast<int>(buffer.size()), pipe)) result += buffer.data();
        pclose(pipe);
    }
    return result;
}

std::string raise_system_error(std::string const &message) {
    std::string error_message = message + ": " + std::strerror(errno) + " (" + std::to_string(errno) + ")";