Lines Matching refs:E

32 template <typename E, E V>
34   static_assert(std::is_enum_v<E>);  in ftl_enum()
95 template <typename E>
96 constexpr auto to_underlying(E v) {
97   return static_cast<std::underlying_type_t<E>>(v);
118 template <typename E, typename = void>
120   static_assert(is_scoped_enum_v<E>, "Missing ftl_first enumerator");
121   static constexpr E value{0};
124 template <typename E>
125 struct enum_begin<E, std::void_t<decltype(E::ftl_first)>> {
126   static constexpr E value = E::ftl_first;
129 template <typename E>
130 inline constexpr E enum_begin_v = enum_begin<E>::value;
132 template <typename E, typename = void>
134   using U = std::underlying_type_t<E>;
135   static_assert(is_scoped_enum_v<E> && std::is_unsigned_v<U>, "Missing ftl_last enumerator");
137   static constexpr E value{std::numeric_limits<U>::digits};
140 template <typename E>
141 struct enum_end<E, std::void_t<decltype(E::ftl_last)>> {
142   static constexpr E value = E{to_underlying(E::ftl_last) + 1};
145 template <typename E>
146 inline constexpr E enum_end_v = enum_end<E>::value;
148 template <typename E>
149 inline constexpr E enum_last_v = E{to_underlying(enum_end_v<E>) - 1};
151 template <typename E>
153   static constexpr auto kBegin = to_underlying(enum_begin_v<E>);
154   static constexpr auto kEnd = to_underlying(enum_end_v<E>);
161 template <typename E>
162 inline constexpr std::size_t enum_size_v = enum_size<E>::value;
171 template <typename E>
172 using make_enum_sequence = std::make_integer_sequence<std::underlying_type_t<E>, enum_size_v<E>>;
174 template <typename E, template <E> class = Identity, typename = make_enum_sequence<E>>
177 template <typename E, template <E> class F, typename T, T... Vs>
178 struct EnumRange<E, F, std::integer_sequence<T, Vs...>> {
179   static constexpr auto kBegin = to_underlying(enum_begin_v<E>);
180   static constexpr auto kSize = enum_size_v<E>;
182   using R = decltype(F<E{}>::value);
183   const R values[kSize] = {F<static_cast<E>(Vs + kBegin)>::value...};
196   using E = decltype(I);
197   using U = std::underlying_type_t<E>;
199   static constexpr E V{U{1} << to_underlying(I)};
200   static constexpr auto value = ftl_enum<E, V>();
216 template <typename E>
218   return details::EnumRange<E>{};
240 template <typename E>
241 constexpr std::optional<std::string_view> enum_name(E v) {
244   constexpr auto kBegin = to_underlying(enum_begin_v<E>);
245   constexpr auto kLast = to_underlying(enum_last_v<E>);
248   constexpr auto kRange = details::EnumRange<E, details::EnumName>{};
259 template <typename E>
260 constexpr std::optional<std::string_view> flag_name(E v) {
266   constexpr auto kRange = details::EnumRange<E, details::FlagName>{};
277 template <typename E>
278 inline std::string enum_string(E v) {
292 template <typename E>
293 inline std::string flag_string(E v) {
297   constexpr auto radix = sizeof(E) == 1 ? Radix::kBin : Radix::kHex;