Function vprintf

3rd/spdlog/include/spdlog/fmt/bundled/printf.h:796–800

template <typename S, typename Char = FMT_CHAR(S)>
inline int vprintf(const S &format,
                   basic_format_args<typename basic_printf_context_t<
                    internal::basic_buffer<Char>>::type> args) {
  return vfprintf(stdout, to_string_view(format), args);
}

/**
  \rst