From 6cbb3038ac48cb5fe17eba4dfbf26e3e798041f1 Mon Sep 17 00:00:00 2001
From: Steve Bronder <stevo15025@gmail.com>
Date: Thu, 4 Mar 2021 18:58:08 +0000
Subject: Adds EIGEN_CONSTEXPR and EIGEN_NOEXCEPT to rows(), cols(),
 innerStride(), outerStride(), and size()

---
 Eigen/src/Core/DenseBase.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'Eigen/src/Core/DenseBase.h')

diff --git a/Eigen/src/Core/DenseBase.h b/Eigen/src/Core/DenseBase.h
index 20cc4821a..9ed5cbb8d 100644
--- a/Eigen/src/Core/DenseBase.h
+++ b/Eigen/src/Core/DenseBase.h
@@ -14,7 +14,7 @@
 namespace Eigen {
 
 namespace internal {
-  
+
 // The index type defined by EIGEN_DEFAULT_DENSE_INDEX_TYPE must be a signed type.
 // This dummy function simply aims at checking that at compile time.
 static inline void check_DenseIndex_is_signed() {
@@ -22,7 +22,7 @@ static inline void check_DenseIndex_is_signed() {
 }
 
 } // end namespace internal
-  
+
 /** \class DenseBase
   * \ingroup Core_Module
   *
@@ -64,12 +64,12 @@ template<typename Derived> class DenseBase
 
     /** The numeric type of the expression' coefficients, e.g. float, double, int or std::complex<float>, etc. */
     typedef typename internal::traits<Derived>::Scalar Scalar;
-    
+
     /** The numeric type of the expression' coefficients, e.g. float, double, int or std::complex<float>, etc.
       *
       * It is an alias for the Scalar type */
     typedef Scalar value_type;
-    
+
     typedef typename NumTraits<Scalar>::Real RealScalar;
     typedef DenseCoeffsBase<Derived, internal::accessors_level<Derived>::value> Base;
 
@@ -158,7 +158,7 @@ template<typename Derived> class DenseBase
           * a row-vector (if there is only one row). */
 
       NumDimensions = int(MaxSizeAtCompileTime) == 1 ? 0 : bool(IsVectorAtCompileTime) ? 1 : 2,
-        /**< This value is equal to Tensor::NumDimensions, i.e. 0 for scalars, 1 for vectors, 
+        /**< This value is equal to Tensor::NumDimensions, i.e. 0 for scalars, 1 for vectors,
          * and 2 for matrices.
          */
 
@@ -175,11 +175,11 @@ template<typename Derived> class DenseBase
       InnerStrideAtCompileTime = internal::inner_stride_at_compile_time<Derived>::ret,
       OuterStrideAtCompileTime = internal::outer_stride_at_compile_time<Derived>::ret
     };
-    
+
     typedef typename internal::find_best_packet<Scalar,SizeAtCompileTime>::type PacketScalar;
 
     enum { IsPlainObjectBase = 0 };
-    
+
     /** The plain matrix type corresponding to this expression.
       * \sa PlainObject */
     typedef Matrix<typename internal::traits<Derived>::Scalar,
@@ -189,7 +189,7 @@ template<typename Derived> class DenseBase
                 internal::traits<Derived>::MaxRowsAtCompileTime,
                 internal::traits<Derived>::MaxColsAtCompileTime
           > PlainMatrix;
-    
+
     /** The plain array type corresponding to this expression.
       * \sa PlainObject */
     typedef Array<typename internal::traits<Derived>::Scalar,
@@ -211,7 +211,7 @@ template<typename Derived> class DenseBase
 
     /** \returns the number of nonzero coefficients which is in practice the number
       * of stored coefficients. */
-    EIGEN_DEVICE_FUNC
+    EIGEN_DEVICE_FUNC EIGEN_CONSTEXPR
     inline Index nonZeros() const { return size(); }
 
     /** \returns the outer size.
@@ -219,7 +219,7 @@ template<typename Derived> class DenseBase
       * \note For a vector, this returns just 1. For a matrix (non-vector), this is the major dimension
       * with respect to the \ref TopicStorageOrders "storage order", i.e., the number of columns for a
       * column-major matrix, and the number of rows for a row-major matrix. */
-    EIGEN_DEVICE_FUNC
+    EIGEN_DEVICE_FUNC EIGEN_CONSTEXPR
     Index outerSize() const
     {
       return IsVectorAtCompileTime ? 1
@@ -229,9 +229,9 @@ template<typename Derived> class DenseBase
     /** \returns the inner size.
       *
       * \note For a vector, this is just the size. For a matrix (non-vector), this is the minor dimension
-      * with respect to the \ref TopicStorageOrders "storage order", i.e., the number of rows for a 
+      * with respect to the \ref TopicStorageOrders "storage order", i.e., the number of rows for a
       * column-major matrix, and the number of columns for a row-major matrix. */
-    EIGEN_DEVICE_FUNC
+    EIGEN_DEVICE_FUNC EIGEN_CONSTEXPR
     Index innerSize() const
     {
       return IsVectorAtCompileTime ? this->size()
@@ -411,7 +411,7 @@ template<typename Derived> class DenseBase
       // size types on MSVC.
       return typename internal::eval<Derived>::type(derived());
     }
-    
+
     /** swaps *this with the expression \a other.
       *
       */
-- 
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