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Make FixedInt constexpr, fix ODR of fix<N>

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Antonio Sánchez 2022-02-16 17:47:51 +00:00 committed by Rasmus Munk Larsen
parent 766087329e
commit c367ed26a8
1 changed files with 25 additions and 5 deletions
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30
Eigen/src/Core/util/IntegralConstant.h
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@ -53,7 +53,14 @@ template<int N> class FixedInt
public: public:
static const int value = N; static const int value = N;
EIGEN_CONSTEXPR operator int() const { return value; } EIGEN_CONSTEXPR operator int() const { return value; }
FixedInt() {}
EIGEN_CONSTEXPR
FixedInt() = default;
EIGEN_CONSTEXPR
FixedInt(std::integral_constant<int,N>) {}
EIGEN_CONSTEXPR
FixedInt( VariableAndFixedInt<N> other) { FixedInt( VariableAndFixedInt<N> other) {
#ifndef EIGEN_INTERNAL_DEBUGGING #ifndef EIGEN_INTERNAL_DEBUGGING
EIGEN_UNUSED_VARIABLE(other); EIGEN_UNUSED_VARIABLE(other);
@ -61,28 +68,41 @@ public:
eigen_internal_assert(int(other)==N); eigen_internal_assert(int(other)==N);
} }
EIGEN_CONSTEXPR
FixedInt<-N> operator-() const { return FixedInt<-N>(); } FixedInt<-N> operator-() const { return FixedInt<-N>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N+M> operator+( FixedInt<M>) const { return FixedInt<N+M>(); } FixedInt<N+M> operator+( FixedInt<M>) const { return FixedInt<N+M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N-M> operator-( FixedInt<M>) const { return FixedInt<N-M>(); } FixedInt<N-M> operator-( FixedInt<M>) const { return FixedInt<N-M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N*M> operator*( FixedInt<M>) const { return FixedInt<N*M>(); } FixedInt<N*M> operator*( FixedInt<M>) const { return FixedInt<N*M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N/M> operator/( FixedInt<M>) const { return FixedInt<N/M>(); } FixedInt<N/M> operator/( FixedInt<M>) const { return FixedInt<N/M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N%M> operator%( FixedInt<M>) const { return FixedInt<N%M>(); } FixedInt<N%M> operator%( FixedInt<M>) const { return FixedInt<N%M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N|M> operator|( FixedInt<M>) const { return FixedInt<N|M>(); } FixedInt<N|M> operator|( FixedInt<M>) const { return FixedInt<N|M>(); }
template<int M> template<int M>
EIGEN_CONSTEXPR
FixedInt<N&M> operator&( FixedInt<M>) const { return FixedInt<N&M>(); } FixedInt<N&M> operator&( FixedInt<M>) const { return FixedInt<N&M>(); }
// Needed in C++14 to allow fix<N>(): // Needed in C++14 to allow fix<N>():
FixedInt operator() () const { return *this; } EIGEN_CONSTEXPR FixedInt operator() () const { return *this; }
VariableAndFixedInt<N> operator() (int val) const { return VariableAndFixedInt<N>(val); } VariableAndFixedInt<N> operator() (int val) const { return VariableAndFixedInt<N>(val); }
FixedInt(std::integral_constant<int,N>) {}
}; };
/** \internal /** \internal
@ -163,7 +183,7 @@ template<int N, int DynamicKey> struct cleanup_index_type<std::integral_constant
#ifndef EIGEN_PARSED_BY_DOXYGEN #ifndef EIGEN_PARSED_BY_DOXYGEN
template<int N> template<int N>
static const internal::FixedInt<N> fix{}; constexpr internal::FixedInt<N> fix{};
#else // EIGEN_PARSED_BY_DOXYGEN #else // EIGEN_PARSED_BY_DOXYGEN