#include <deal.II/base/config.h>
#include <deal.II/base/exceptions.h>
+#include <deal.II/base/template_constraints.h>
#include <algorithm>
#include <iterator>
constexpr TableIndices() = default;
/**
- * Constructor. This is the appropriate constructor for an
- * object of type TableIndices<1> and initializes the single
- * index with @p index0.
+ * Constructor. Initializes the indices stored by this object by the given
+ * arguments @p indices
*
* This constructor will result in a compiler error if
- * the template argument @p N is different from one.
+ * the template argument @p N is different from the number of the arguments.
*/
- constexpr explicit TableIndices(const std::size_t index0);
-
- /**
- * Constructor. This is the appropriate constructor for an
- * object of type TableIndices<2> and initializes the
- * indices stored by this object by the given arguments.
- *
- * This constructor will result in a compiler error if
- * the template argument @p N is different from two.
- */
- constexpr TableIndices(const std::size_t index0, const std::size_t index1);
-
- /**
- * Constructor. This is the appropriate constructor for an
- * object of type TableIndices<3> and initializes the
- * indices stored by this object by the given arguments.
- *
- * This constructor will result in a compiler error if
- * the template argument @p N is different from three.
- */
- constexpr TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2);
-
- /**
- * Constructor. This is the appropriate constructor for an
- * object of type TableIndices<4> and initializes the
- * indices stored by this object by the given arguments.
- *
- * This constructor will result in a compiler error if
- * the template argument @p N is different from four.
- */
- constexpr TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3);
-
- /**
- * Constructor. This is the appropriate constructor for an
- * object of type TableIndices<5> and initializes the
- * indices stored by this object by the given arguments.
- *
- * This constructor will result in a compiler error if
- * the template argument @p N is different from five.
- */
- constexpr TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3,
- const std::size_t index4);
-
- /**
- * Convenience constructor that takes up to 9 arguments. It can be used to
- * populate a TableIndices object upon creation, either completely, or
- * partially.
- *
- * Index entries that are not set by these arguments (either because they
- * are omitted, or because $N > 9$) are set to
- * numbers::invalid_unsigned_int.
- *
- * Note that only the first <tt>N</tt> arguments are actually used.
- *
- * @deprecated Use the constructor with the appropriate number of arguments
- * to initialize the @p N indices instead.
- */
- DEAL_II_DEPRECATED
- TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3,
- const std::size_t index4,
- const std::size_t index5,
- const std::size_t index6 = numbers::invalid_unsigned_int,
- const std::size_t index7 = numbers::invalid_unsigned_int,
- const std::size_t index8 = numbers::invalid_unsigned_int);
+ template <typename... T>
+ constexpr TableIndices(const T... indices);
/**
* Read-only access the value of the <tt>i</tt>th index.
/* --------------------- Template and inline functions ---------------- */
-
-
template <int N>
-constexpr TableIndices<N>::TableIndices(const std::size_t index0)
- : indices{index0}
+template <typename... T>
+constexpr TableIndices<N>::TableIndices(const T... args)
+ : indices{static_cast<const unsigned int>(args)...}
{
- static_assert(
- N == 1, "This constructor is only available for TableIndices<1> objects.");
-}
-
-
-
-template <int N>
-constexpr TableIndices<N>::TableIndices(const std::size_t index0,
- const std::size_t index1)
- : indices{index0, index1}
-{
- static_assert(
- N == 2, "This constructor is only available for TableIndices<2> objects.");
-}
-
-
-
-template <int N>
-constexpr TableIndices<N>::TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2)
- : indices{index0, index1, index2}
-{
- static_assert(
- N == 3, "This constructor is only available for TableIndices<3> objects.");
-}
-
-
-
-template <int N>
-constexpr TableIndices<N>::TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3)
- : indices{index0, index1, index2, index3}
-{
- static_assert(
- N == 4, "This constructor is only available for TableIndices<4> objects.");
-}
-
-
-
-template <int N>
-constexpr TableIndices<N>::TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3,
- const std::size_t index4)
- : indices{index0, index1, index2, index3, index4}
-{
- static_assert(
- N == 5, "This constructor is only available for TableIndices<5> objects.");
-}
-
-
-
-template <int N>
-TableIndices<N>::TableIndices(const std::size_t index0,
- const std::size_t index1,
- const std::size_t index2,
- const std::size_t index3,
- const std::size_t index4,
- const std::size_t index5,
- const std::size_t index6,
- const std::size_t index7,
- const std::size_t index8)
-{
- switch (N)
- {
- case 1:
- Assert(index1 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 2:
- Assert(index2 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 3:
- Assert(index3 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 4:
- Assert(index4 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 5:
- Assert(index5 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 6:
- Assert(index6 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 7:
- Assert(index7 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- DEAL_II_FALLTHROUGH;
- case 8:
- Assert(index8 == numbers::invalid_unsigned_int,
- ExcMessage("more than N index values provided"));
- break;
- default:;
- }
-
- // Always access "indices" with indices modulo N to avoid bogus compiler
- // warnings (although such access is always in dead code...
- switch (N)
- {
- default:
- // For TableIndices of size 10 or larger als default initialize the
- // remaining indices to numbers::invalid_unsigned_int:
- for (unsigned int i = 0; i < N; ++i)
- indices[i] = numbers::invalid_unsigned_int;
- DEAL_II_FALLTHROUGH;
- case 9:
- indices[8 % N] = index8;
- DEAL_II_FALLTHROUGH;
- case 8:
- indices[7 % N] = index7;
- DEAL_II_FALLTHROUGH;
- case 7:
- indices[6 % N] = index6;
- DEAL_II_FALLTHROUGH;
- case 6:
- indices[5 % N] = index5;
- DEAL_II_FALLTHROUGH;
- case 5:
- indices[4 % N] = index4;
- DEAL_II_FALLTHROUGH;
- case 4:
- indices[3 % N] = index3;
- DEAL_II_FALLTHROUGH;
- case 3:
- indices[2 % N] = index2;
- DEAL_II_FALLTHROUGH;
- case 2:
- indices[1 % N] = index1;
- DEAL_II_FALLTHROUGH;
- case 1:
- indices[0 % N] = index0;
- }
+ static_assert(internal::TemplateConstraints::all_true<
+ std::is_integral<T>::value...>::value,
+ "Not all of the parameters have integral type!");
+ static_assert(sizeof...(T) == N, "Wrong number of constructor arguments!");
}
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