Function vformat

include/fmt/format.h:4314–4319

FMT_API void report_system_error(int error_code, const char* message) noexcept;

inline auto vformat(locale_ref loc, string_view fmt, format_args args)
    -> std::string {
  auto buf = memory_buffer();
  detail::vformat_to(buf, fmt, args, loc);
  return {buf.data(), buf.size()};
}

template <typename... T>
FMT_INLINE auto format(locale_ref loc, format_string<T...> fmt, T&&... args)