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@ -22,27 +22,25 @@ FMT_BEGIN_NAMESPACE |
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namespace detail { |
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template <typename RangeT, typename OutputIterator> |
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OutputIterator copy(const RangeT& range, OutputIterator out) { |
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template <typename Range, typename OutputIt> |
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auto copy(const Range& range, OutputIt out) -> OutputIt { |
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for (auto it = range.begin(), end = range.end(); it != end; ++it) |
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*out++ = *it; |
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return out; |
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} |
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template <typename OutputIterator> |
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OutputIterator copy(const char* str, OutputIterator out) { |
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template <typename OutputIt> |
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auto copy(const char* str, OutputIt out) -> OutputIt { |
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while (*str) *out++ = *str++; |
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return out; |
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} |
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template <typename OutputIterator> |
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OutputIterator copy(char ch, OutputIterator out) { |
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template <typename OutputIt> auto copy(char ch, OutputIt out) -> OutputIt { |
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*out++ = ch; |
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return out; |
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} |
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template <typename OutputIterator> |
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OutputIterator copy(wchar_t ch, OutputIterator out) { |
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template <typename OutputIt> auto copy(wchar_t ch, OutputIt out) -> OutputIt { |
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*out++ = ch; |
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return out; |
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} |
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@ -69,7 +67,7 @@ template <typename T> class is_map { |
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template <typename> static void check(...); |
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public: |
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#ifdef FMT_FORMAT_MAP_AS_LIST |
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#ifdef FMT_FORMAT_MAP_AS_LIST // DEPRECATED! |
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static constexpr const bool value = false; |
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#else |
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static constexpr const bool value = |
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@ -82,7 +80,7 @@ template <typename T> class is_set { |
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template <typename> static void check(...); |
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public: |
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#ifdef FMT_FORMAT_SET_AS_LIST |
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#ifdef FMT_FORMAT_SET_AS_LIST // DEPRECATED! |
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static constexpr const bool value = false; |
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#else |
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static constexpr const bool value = |
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@ -157,8 +155,9 @@ template <typename T> |
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struct has_mutable_begin_end< |
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T, void_t<decltype(detail::range_begin(std::declval<T>())), |
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decltype(detail::range_end(std::declval<T>())), |
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enable_if_t<std::is_copy_constructible<T>::value>>> |
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: std::true_type {}; |
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// the extra int here is because older versions of MSVC don't |
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// SFINAE properly unless there are distinct types |
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int>> : std::true_type {}; |
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template <typename T> |
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struct is_range_<T, void> |
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@ -211,41 +210,61 @@ class is_tuple_formattable_ { |
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static constexpr const bool value = false; |
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}; |
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template <typename T, typename C> class is_tuple_formattable_<T, C, true> { |
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template <std::size_t... I> |
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static std::true_type check2(index_sequence<I...>, |
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integer_sequence<bool, (I == I)...>); |
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template <std::size_t... Is> |
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static std::true_type check2(index_sequence<Is...>, |
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integer_sequence<bool, (Is == Is)...>); |
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static std::false_type check2(...); |
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template <std::size_t... I> |
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template <std::size_t... Is> |
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static decltype(check2( |
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index_sequence<I...>{}, |
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index_sequence<Is...>{}, |
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integer_sequence< |
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bool, (is_formattable<typename std::tuple_element<I, T>::type, |
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C>::value)...>{})) check(index_sequence<I...>); |
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bool, (is_formattable<typename std::tuple_element<Is, T>::type, |
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C>::value)...>{})) check(index_sequence<Is...>); |
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public: |
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static constexpr const bool value = |
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decltype(check(tuple_index_sequence<T>{}))::value; |
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}; |
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template <class Tuple, class F, size_t... Is> |
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void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) noexcept { |
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template <typename Tuple, typename F, size_t... Is> |
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FMT_CONSTEXPR void for_each(index_sequence<Is...>, Tuple&& t, F&& f) { |
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using std::get; |
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// using free function get<I>(T) now. |
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const int _[] = {0, ((void)f(get<Is>(tup)), 0)...}; |
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(void)_; // blocks warnings |
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// Using a free function get<Is>(Tuple) now. |
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const int unused[] = {0, ((void)f(get<Is>(t)), 0)...}; |
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ignore_unused(unused); |
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} |
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template <typename Tuple, typename F> |
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FMT_CONSTEXPR void for_each(Tuple&& t, F&& f) { |
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for_each(tuple_index_sequence<remove_cvref_t<Tuple>>(), |
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std::forward<Tuple>(t), std::forward<F>(f)); |
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} |
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template <class T> |
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FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes( |
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T const&) { |
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return {}; |
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template <typename Tuple1, typename Tuple2, typename F, size_t... Is> |
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void for_each2(index_sequence<Is...>, Tuple1&& t1, Tuple2&& t2, F&& f) { |
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using std::get; |
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const int unused[] = {0, ((void)f(get<Is>(t1), get<Is>(t2)), 0)...}; |
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ignore_unused(unused); |
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} |
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template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) { |
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const auto indexes = get_indexes(tup); |
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for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f)); |
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template <typename Tuple1, typename Tuple2, typename F> |
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void for_each2(Tuple1&& t1, Tuple2&& t2, F&& f) { |
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for_each2(tuple_index_sequence<remove_cvref_t<Tuple1>>(), |
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std::forward<Tuple1>(t1), std::forward<Tuple2>(t2), |
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std::forward<F>(f)); |
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} |
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namespace tuple { |
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// Workaround a bug in MSVC 2019 (v140). |
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template <typename Char, typename... T> |
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using result_t = std::tuple<formatter<remove_cvref_t<T>, Char>...>; |
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using std::get; |
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template <typename Tuple, typename Char, std::size_t... Is> |
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auto get_formatters(index_sequence<Is...>) |
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-> result_t<Char, decltype(get<Is>(std::declval<Tuple>()))...>; |
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} // namespace tuple |
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#if FMT_MSC_VERSION && FMT_MSC_VERSION < 1920 |
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// Older MSVC doesn't get the reference type correctly for arrays. |
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template <typename R> struct range_reference_type_impl { |
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@ -269,45 +288,37 @@ using range_reference_type = |
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template <typename Range> |
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using uncvref_type = remove_cvref_t<range_reference_type<Range>>; |
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template <typename Range> |
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using uncvref_first_type = |
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remove_cvref_t<decltype(std::declval<range_reference_type<Range>>().first)>; |
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template <typename Range> |
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using uncvref_second_type = remove_cvref_t< |
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decltype(std::declval<range_reference_type<Range>>().second)>; |
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template <typename OutputIt> OutputIt write_delimiter(OutputIt out) { |
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*out++ = ','; |
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*out++ = ' '; |
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return out; |
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} |
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template <typename Char, typename OutputIt> |
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auto write_range_entry(OutputIt out, basic_string_view<Char> str) -> OutputIt { |
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return write_escaped_string(out, str); |
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} |
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template <typename Char, typename OutputIt, typename T, |
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FMT_ENABLE_IF(std::is_convertible<T, std_string_view<char>>::value)> |
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inline auto write_range_entry(OutputIt out, const T& str) -> OutputIt { |
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auto sv = std_string_view<Char>(str); |
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return write_range_entry<Char>(out, basic_string_view<Char>(sv)); |
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} |
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template <typename Char, typename OutputIt, typename Arg, |
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FMT_ENABLE_IF(std::is_same<Arg, Char>::value)> |
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OutputIt write_range_entry(OutputIt out, const Arg v) { |
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return write_escaped_char(out, v); |
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template <typename Formatter> |
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FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set) |
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-> decltype(f.set_debug_format(set)) { |
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f.set_debug_format(set); |
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} |
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template <typename Formatter> |
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FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {} |
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// These are not generic lambdas for compatibility with C++11. |
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template <typename ParseContext> struct parse_empty_specs { |
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template <typename Formatter> FMT_CONSTEXPR void operator()(Formatter& f) { |
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f.parse(ctx); |
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detail::maybe_set_debug_format(f, true); |
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} |
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ParseContext& ctx; |
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}; |
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template <typename FormatContext> struct format_tuple_element { |
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using char_type = typename FormatContext::char_type; |
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template <typename T> |
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void operator()(const formatter<T, char_type>& f, const T& v) { |
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if (i > 0) |
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ctx.advance_to(detail::copy_str<char_type>(separator, ctx.out())); |
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ctx.advance_to(f.format(v, ctx)); |
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++i; |
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} |
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template < |
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typename Char, typename OutputIt, typename Arg, |
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FMT_ENABLE_IF(!is_std_string_like<typename std::decay<Arg>::type>::value && |
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!std::is_same<Arg, Char>::value)> |
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OutputIt write_range_entry(OutputIt out, const Arg& v) { |
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return write<Char>(out, v); |
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} |
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int i; |
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FormatContext& ctx; |
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basic_string_view<char_type> separator; |
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}; |
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} // namespace detail |
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@ -321,29 +332,20 @@ template <typename T, typename C> struct is_tuple_formattable { |
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detail::is_tuple_formattable_<T, C>::value; |
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}; |
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template <typename TupleT, typename Char> |
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struct formatter<TupleT, Char, |
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enable_if_t<fmt::is_tuple_like<TupleT>::value && |
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fmt::is_tuple_formattable<TupleT, Char>::value>> { |
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template <typename Tuple, typename Char> |
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struct formatter<Tuple, Char, |
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enable_if_t<fmt::is_tuple_like<Tuple>::value && |
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fmt::is_tuple_formattable<Tuple, Char>::value>> { |
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private: |
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decltype(detail::tuple::get_formatters<Tuple, Char>( |
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detail::tuple_index_sequence<Tuple>())) formatters_; |
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basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{}; |
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basic_string_view<Char> opening_bracket_ = |
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detail::string_literal<Char, '('>{}; |
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basic_string_view<Char> closing_bracket_ = |
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detail::string_literal<Char, ')'>{}; |
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// C++11 generic lambda for format(). |
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template <typename FormatContext> struct format_each { |
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template <typename T> void operator()(const T& v) { |
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if (i > 0) out = detail::copy_str<Char>(separator, out); |
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out = detail::write_range_entry<Char>(out, v); |
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++i; |
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} |
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int i; |
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typename FormatContext::iterator& out; |
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basic_string_view<Char> separator; |
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}; |
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public: |
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FMT_CONSTEXPR formatter() {} |
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@ -359,17 +361,21 @@ struct formatter<TupleT, Char, |
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template <typename ParseContext> |
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FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
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return ctx.begin(); |
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auto it = ctx.begin(); |
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if (it != ctx.end() && *it != '}') |
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FMT_THROW(format_error("invalid format specifier")); |
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detail::for_each(formatters_, detail::parse_empty_specs<ParseContext>{ctx}); |
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return it; |
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} |
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template <typename FormatContext = format_context> |
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auto format(const TupleT& values, FormatContext& ctx) const |
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template <typename FormatContext> |
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auto format(const Tuple& value, FormatContext& ctx) const |
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-> decltype(ctx.out()) { |
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auto out = ctx.out(); |
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out = detail::copy_str<Char>(opening_bracket_, out); |
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detail::for_each(values, format_each<FormatContext>{0, out, separator_}); |
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out = detail::copy_str<Char>(closing_bracket_, out); |
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return out; |
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ctx.advance_to(detail::copy_str<Char>(opening_bracket_, ctx.out())); |
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detail::for_each2( |
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formatters_, value, |
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detail::format_tuple_element<FormatContext>{0, ctx, separator_}); |
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return detail::copy_str<Char>(closing_bracket_, ctx.out()); |
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} |
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}; |
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@ -398,12 +404,10 @@ template <typename Context> struct range_mapper { |
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}; |
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template <typename Char, typename Element> |
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using range_formatter_type = conditional_t< |
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is_formattable<Element, Char>::value, |
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using range_formatter_type = |
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formatter<remove_cvref_t<decltype(range_mapper<buffer_context<Char>>{}.map( |
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std::declval<Element>()))>, |
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Char>, |
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fallback_formatter<Element, Char>>; |
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Char>; |
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template <typename R> |
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using maybe_const_range = |
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@ -413,11 +417,8 @@ using maybe_const_range = |
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#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910 |
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template <typename R, typename Char> |
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struct is_formattable_delayed |
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: disjunction< |
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is_formattable<uncvref_type<maybe_const_range<R>>, Char>, |
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has_fallback_formatter<uncvref_type<maybe_const_range<R>>, Char>> {}; |
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: is_formattable<uncvref_type<maybe_const_range<R>>, Char> {}; |
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#endif |
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} // namespace detail |
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template <typename T, typename Char, typename Enable = void> |
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@ -426,32 +427,16 @@ struct range_formatter; |
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template <typename T, typename Char> |
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struct range_formatter< |
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T, Char, |
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enable_if_t<conjunction< |
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std::is_same<T, remove_cvref_t<T>>, |
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disjunction<is_formattable<T, Char>, |
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detail::has_fallback_formatter<T, Char>>>::value>> { |
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enable_if_t<conjunction<std::is_same<T, remove_cvref_t<T>>, |
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is_formattable<T, Char>>::value>> { |
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private: |
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detail::range_formatter_type<Char, T> underlying_; |
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bool custom_specs_ = false; |
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basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{}; |
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basic_string_view<Char> opening_bracket_ = |
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detail::string_literal<Char, '['>{}; |
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basic_string_view<Char> closing_bracket_ = |
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detail::string_literal<Char, ']'>{}; |
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template <class U> |
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FMT_CONSTEXPR static auto maybe_set_debug_format(U& u, int) |
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-> decltype(u.set_debug_format()) { |
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u.set_debug_format(); |
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} |
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template <class U> |
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FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {} |
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FMT_CONSTEXPR void maybe_set_debug_format() { |
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maybe_set_debug_format(underlying_, 0); |
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} |
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public: |
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FMT_CONSTEXPR range_formatter() {} |
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@ -473,31 +458,24 @@ struct range_formatter< |
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FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
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auto it = ctx.begin(); |
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auto end = ctx.end(); |
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if (it == end || *it == '}') { |
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maybe_set_debug_format(); |
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return it; |
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} |
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if (*it == 'n') { |
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if (it != end && *it == 'n') { |
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set_brackets({}, {}); |
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++it; |
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} |
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if (*it == '}') { |
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maybe_set_debug_format(); |
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return it; |
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if (it != end && *it != '}') { |
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if (*it != ':') FMT_THROW(format_error("invalid format specifier")); |
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++it; |
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} else { |
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detail::maybe_set_debug_format(underlying_, true); |
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} |
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if (*it != ':') |
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FMT_THROW(format_error("no other top-level range formatters supported")); |
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custom_specs_ = true; |
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++it; |
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ctx.advance_to(it); |
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return underlying_.parse(ctx); |
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} |
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template <typename R, class FormatContext> |
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template <typename R, typename FormatContext> |
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auto format(R&& range, FormatContext& ctx) const -> decltype(ctx.out()) { |
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detail::range_mapper<buffer_context<Char>> mapper; |
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auto out = ctx.out(); |
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@ -507,7 +485,6 @@ struct range_formatter< |
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auto end = detail::range_end(range); |
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for (; it != end; ++it) { |
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if (i > 0) out = detail::copy_str<Char>(separator_, out); |
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; |
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ctx.advance_to(out); |
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out = underlying_.format(mapper.map(*it), ctx); |
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++i; |
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@ -520,13 +497,14 @@ struct range_formatter< |
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enum class range_format { disabled, map, set, sequence, string, debug_string }; |
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namespace detail { |
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template <typename T> struct range_format_kind_ { |
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static constexpr auto value = std::is_same<range_reference_type<T>, T>::value |
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? range_format::disabled |
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: is_map<T>::value ? range_format::map |
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: is_set<T>::value ? range_format::set |
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: range_format::sequence; |
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}; |
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template <typename T> |
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struct range_format_kind_ |
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: std::integral_constant<range_format, |
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std::is_same<uncvref_type<T>, T>::value |
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? range_format::disabled |
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|
: is_map<T>::value ? range_format::map |
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: is_set<T>::value ? range_format::set |
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|
: range_format::sequence> {}; |
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template <range_format K, typename R, typename Char, typename Enable = void> |
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struct range_default_formatter; |
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@ -601,9 +579,6 @@ template <typename Char, typename... T> struct tuple_join_view : detail::view { |
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|
: tuple(t), sep{s} {} |
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|
}; |
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template <typename Char, typename... T> |
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using tuple_arg_join = tuple_join_view<Char, T...>; |
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|
// Define FMT_TUPLE_JOIN_SPECIFIERS to enable experimental format specifiers |
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|
|
// support in tuple_join. It is disabled by default because of issues with |
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|
// the dynamic width and precision. |
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|
@ -673,7 +648,42 @@ struct formatter<tuple_join_view<Char, T...>, Char> { |
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|
} |
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|
}; |
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|
FMT_MODULE_EXPORT_BEGIN |
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|
|
namespace detail { |
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|
|
// Check if T has an interface like a container adaptor (e.g. std::stack, |
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|
|
// std::queue, std::priority_queue). |
|
|
|
template <typename T> class is_container_adaptor_like { |
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|
|
template <typename U> static auto check(U* p) -> typename U::container_type; |
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|
|
template <typename> static void check(...); |
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|
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|
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|
|
public: |
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|
|
static constexpr const bool value = |
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|
|
!std::is_void<decltype(check<T>(nullptr))>::value; |
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|
|
}; |
|
|
|
|
|
|
|
template <typename Container> struct all { |
|
|
|
const Container& c; |
|
|
|
auto begin() const -> typename Container::const_iterator { return c.begin(); } |
|
|
|
auto end() const -> typename Container::const_iterator { return c.end(); } |
|
|
|
}; |
|
|
|
} // namespace detail |
|
|
|
|
|
|
|
template <typename T, typename Char> |
|
|
|
struct formatter<T, Char, |
|
|
|
enable_if_t<detail::is_container_adaptor_like<T>::value>> |
|
|
|
: formatter<detail::all<typename T::container_type>, Char> { |
|
|
|
using all = detail::all<typename T::container_type>; |
|
|
|
template <typename FormatContext> |
|
|
|
auto format(const T& t, FormatContext& ctx) const -> decltype(ctx.out()) { |
|
|
|
struct getter : T { |
|
|
|
static auto get(const T& t) -> all { |
|
|
|
return {t.*(&getter::c)}; // Access c through the derived class. |
|
|
|
} |
|
|
|
}; |
|
|
|
return formatter<all>::format(getter::get(t), ctx); |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
|
|
FMT_BEGIN_EXPORT |
|
|
|
|
|
|
|
/** |
|
|
|
\rst |
|
|
@ -716,7 +726,7 @@ auto join(std::initializer_list<T> list, string_view sep) |
|
|
|
return join(std::begin(list), std::end(list), sep); |
|
|
|
} |
|
|
|
|
|
|
|
FMT_MODULE_EXPORT_END |
|
|
|
FMT_END_EXPORT |
|
|
|
FMT_END_NAMESPACE |
|
|
|
|
|
|
|
#endif // FMT_RANGES_H_ |