text: #pragma once
  
  #include <cstdarg>
  #include <string>
  #include <vector>
  
  namespace Str_Util
  {
      // Ref: https://stackoverflow.com/questions/69738/c-how-to-get-fprintf-results-as-a-stdstring-w-o-sprintf#69911
      std::string format(char const* fmt, ...);
      std::string vformat(char const* fmt, va_list ap);
  
      unsigned string_to_unsigned(std::string const& s) noexcept(false);
  };
  