added some comments to switch cases

src/amdis/common/SwitchCases.hpp

@@ -27,54 +27,6 @@ namespace AMDiS
       return elseBranch(value);
   }
 
-  // specialization for the case value in {0}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,1,0>& cases, const Value& value,
-                                       Then&& thenBranch, Else&& elseBranch)
-  {
-    return std::size_t(value) == std::size_t(0) ? thenBranch(index_t<0>{}) : elseBranch();
-  }
-
-  // specialization for the case value in {0,1}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,2,0>& cases, const Value& value,
-                                       Then&& thenBranch, Else&& elseBranch)
-  {
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      case 1u: return thenBranch(index_t<1>{});
-      default: return elseBranch();
-    }
-  }
-
-  // specialization for the case value in {0,1,2}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,3,0>& cases, const Value& value,
-                                       Then&& thenBranch, Else&& elseBranch)
-  {
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      case 1u: return thenBranch(index_t<1>{});
-      case 2u: return thenBranch(index_t<2>{});
-      default: return elseBranch();
-    }
-  }
-
-  // specialization for the case value in {0,1,2,3}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,4,0>& cases, const Value& value,
-                                       Then&& thenBranch, Else&& elseBranch)
-  {
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      case 1u: return thenBranch(index_t<1>{});
-      case 2u: return thenBranch(index_t<2>{});
-      case 3u: return thenBranch(index_t<3>{});
-      default: return elseBranch();
-    }
-  }
-
-
   // static switching. Iterates over all possible values
   template<class T, T to, T from, class Value, class Then>
   constexpr void switchCases(const Dune::StaticIntegralRange<T,to,from>& cases, const Value& value, Then&& thenBranch)
@@ -91,48 +43,4 @@ namespace AMDiS
     thenBranch(value);
   }
 
-  // specialization for the case value in {0}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,1,0>& cases, const Value& value, Then&& thenBranch)
-  {
-    assert(std::size_t(value) < 1u);
-    return thenBranch(index_t<0>{});
-  }
-
-  // specialization for the case value in {0,1}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,2,0>& cases, const Value& value, Then&& thenBranch)
-  {
-    assert(std::size_t(value) < 2u);
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      default: return thenBranch(index_t<1>{});
-    }
-  }
-
-  // specialization for the case value in {0,1,2}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,3,0>& cases, const Value& value, Then&& thenBranch)
-  {
-    assert(std::size_t(value) < 3u);
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      case 1u: return thenBranch(index_t<1>{});
-      default: return thenBranch(index_t<2>{});
-    }
-  }
-
-  // specialization for the case value in {0,1,2,3}
-  template <class Value, class Then, class Else>
-  constexpr decltype(auto) switchCases(const Dune::StaticIntegralRange<std::size_t,4,0>& cases, const Value& value, Then&& thenBranch)
-  {
-    assert(std::size_t(value) < 3u);
-    switch (std::size_t(value)) {
-      case 0u: return thenBranch(index_t<0>{});
-      case 1u: return thenBranch(index_t<1>{});
-      case 2u: return thenBranch(index_t<2>{});
-      default: return thenBranch(index_t<3>{});
-    }
-  }
-
 } // end namespace AMDiS