Short name added to derived unit definition

2019-10-15 11:32:59 +02:00
parent 2bcc5fa4e5
commit b889c81cb9
24 changed files with 186 additions and 78 deletions
@@ -0,0 +1,67 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2018 Mateusz Pusz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include <cstdlib>
+
+namespace units {
+
+//   TODO gcc:92101
+//   Gated by the following gcc bug
+//   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92101
+//
+//   template<typename CharT, std::size_t N>
+//   struct basic_fixed_string {
+//     CharT data_[N+1] = {};
+
+//     constexpr basic_fixed_string(const CharT (&txt)[N+1]) noexcept
+//     {
+//       for(std::size_t i = 0; i <= N; ++i)
+//         data_[i] = txt[i];
+//     }
+//     // auto operator==(const basic_fixed_string &) = default;
+//     [[nodiscard]] constexpr const CharT* c_str() const noexcept { return data_; }
+//   };
+
+//   template<typename CharT, std::size_t N>
+//   basic_fixed_string(const CharT (&str)[N]) -> basic_fixed_string<CharT, N-1>;
+
+//   template<std::size_t N>
+//   using fixed_string = basic_fixed_string<char, N>;
+
+  template<typename CharT, CharT... Chars>
+  struct basic_fixed_string {
+    static constexpr CharT txt[] = { Chars..., '\0' };
+
+    static constexpr const CharT* c_str() noexcept
+    {
+      return txt;
+    }
+  };
+
+  inline namespace hacks {
+
+    template<typename T, T... chars>
+    constexpr basic_fixed_string<T, chars...> operator""_fs() { return {}; }
+
+  }
+
+}