Method operator()

extlibs/fmt/include/fmt/format.h:2389–2389

  explicit FMT_CONSTEXPR precision_adapter(SpecHandler& h) : handler(h) {}

  FMT_CONSTEXPR void operator()() { handler.on_dynamic_precision(auto_id()); }
  FMT_CONSTEXPR void operator()(int id) { handler.on_dynamic_precision(id); }
  FMT_CONSTEXPR void operator()(basic_string_view<Char> id) {
    handler.on_dynamic_precision(id);