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formatting empty std::tuple does not compile #1588

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boryas opened this issue Mar 11, 2020 · 1 comment

boryas commented Mar 11, 2020

https://godbolt.org/z/rAM82Z

I was able to work-around this for now by adding:

template <>
struct formatter<std::tuple<>> {
  template <typename ParseContext>
  constexpr auto parse(ParseContext& ctx) {
    return ctx.begin();
  }

  template <typename FormatContext>
  auto format(const std::tuple<>& tup, FormatContext& ctx) {
    return format_to(ctx.out(), "()");
  }
};

The text was updated successfully, but these errors were encountered:

vitaut added a commit that referenced this issue


          Fix handling of empty tuples (#1588)

61c5a51

Contributor

vitaut commented Mar 14, 2020

Good catch, thanks. Fixed in 61c5a51.

vitaut closed this as completed

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