From 4317fad8692eabe09bcafdd88de254deb8e3ea6f Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Mon, 12 May 2008 18:09:30 +0000
Subject: [PATCH] * Added several cast to int of the enums (needed for some
 compilers) * Fix a mistake in CwiseNullary. * Added a CoreDeclarions header
 that declares only the forward declarations   and related basic stuffs.

---
 Eigen/Core                        | 39 +------------------------
 Eigen/CoreDeclarations            | 47 +++++++++++++++++++++++++++++++
 Eigen/src/Core/Assign.h           | 22 +++++++--------
 Eigen/src/Core/Coeffs.h           |  2 +-
 Eigen/src/Core/CwiseBinaryOp.h    |  6 ++--
 Eigen/src/Core/CwiseNullaryOp.h   |  2 +-
 Eigen/src/Core/DiagonalCoeffs.h   |  4 +--
 Eigen/src/Core/Dot.h              |  8 +++---
 Eigen/src/Core/MathFunctions.h    |  2 +-
 Eigen/src/Core/MatrixBase.h       |  7 ++++-
 Eigen/src/Core/Minor.h            |  8 +++---
 Eigen/src/Core/Redux.h            |  8 +++---
 Eigen/src/Core/Transpose.h        |  2 +-
 Eigen/src/Core/TriangularAssign.h |  2 +-
 Eigen/src/Core/Visitor.h          |  2 +-
 Eigen/src/Core/util/Meta.h        | 10 +++----
 16 files changed, 93 insertions(+), 78 deletions(-)
 create mode 100644 Eigen/CoreDeclarations

diff --git a/Eigen/Core b/Eigen/Core
index dfe18fe43..82ca1f165 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -1,39 +1,7 @@
 #ifndef EIGEN_CORE_H
 #define EIGEN_CORE_H
 
-#define EIGEN_WIP_PRODUCT
-
-#ifdef __GNUC__
-#define EIGEN_GNUC_AT_LEAST(x,y) (__GNUC__>=x && __GNUC_MINOR__>=y) || __GNUC__>x
-#else
-#define EIGEN_GNUC_AT_LEAST(x,y) false
-#endif
-
-#ifndef EIGEN_DONT_VECTORIZE
-  #if (defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) )
-    #define EIGEN_VECTORIZE
-    #define EIGEN_VECTORIZE_SSE
-    #include <emmintrin.h>
-    #include <xmmintrin.h>
-    #ifdef __SSE3__
-      #include <pmmintrin.h>
-    #endif
-    #ifdef __SSSE3__
-    #include <tmmintrin.h>
-    #endif
-  #elif (defined __ALTIVEC__)
-    #define EIGEN_VECTORIZE
-    #define EIGEN_VECTORIZE_ALTIVEC
-    #include <altivec.h>
-    // We _need_ to #undef bool as it's defined in <altivec.h> for some reason.
-    #undef bool
-  #endif
-#endif
-
-#include <cstdlib>
-#include <cmath>
-#include <complex>
-#include <cassert>
+#include "CoreDeclarations"
 #include <iostream>
 
 #ifdef EIGEN_VECTORIZE
@@ -43,11 +11,6 @@ extern "C" int posix_memalign (void **, size_t, size_t) throw ();
 
 namespace Eigen {
 
-#include "src/Core/util/Macros.h"
-#include "src/Core/util/Constants.h"
-#include "src/Core/util/ForwardDeclarations.h"
-#include "src/Core/util/Meta.h"
-
 #include "src/Core/NumTraits.h"
 #include "src/Core/MathFunctions.h"
 #include "src/Core/DummyPacketMath.h"
diff --git a/Eigen/CoreDeclarations b/Eigen/CoreDeclarations
new file mode 100644
index 000000000..9a44e4dc3
--- /dev/null
+++ b/Eigen/CoreDeclarations
@@ -0,0 +1,47 @@
+#ifndef EIGEN_CORE_DECLARATIONS_H
+#define EIGEN_CORE_DECLARATIONS_H
+
+#define EIGEN_WIP_PRODUCT
+
+#ifdef __GNUC__
+#define EIGEN_GNUC_AT_LEAST(x,y) (__GNUC__>=x && __GNUC_MINOR__>=y) || __GNUC__>x
+#else
+#define EIGEN_GNUC_AT_LEAST(x,y) false
+#endif
+
+#ifndef EIGEN_DONT_VECTORIZE
+  #if (defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) )
+    #define EIGEN_VECTORIZE
+    #define EIGEN_VECTORIZE_SSE
+    #include <emmintrin.h>
+    #include <xmmintrin.h>
+    #ifdef __SSE3__
+      #include <pmmintrin.h>
+    #endif
+    #ifdef __SSSE3__
+    #include <tmmintrin.h>
+    #endif
+  #elif (defined __ALTIVEC__)
+    #define EIGEN_VECTORIZE
+    #define EIGEN_VECTORIZE_ALTIVEC
+    #include <altivec.h>
+    // We _need_ to #undef bool as it's defined in <altivec.h> for some reason.
+    #undef bool
+  #endif
+#endif
+
+#include <cstdlib>
+#include <cmath>
+#include <complex>
+#include <cassert>
+
+namespace Eigen {
+
+#include "src/Core/util/Macros.h"
+#include "src/Core/util/Constants.h"
+#include "src/Core/util/ForwardDeclarations.h"
+#include "src/Core/util/Meta.h"
+
+} // namespace Eigen
+
+#endif // EIGEN_CORE_DECLARATIONS_H
diff --git a/Eigen/src/Core/Assign.h b/Eigen/src/Core/Assign.h
index bf57b3754..1eb88d8ff 100644
--- a/Eigen/src/Core/Assign.h
+++ b/Eigen/src/Core/Assign.h
@@ -70,8 +70,8 @@ template<typename Derived1, typename Derived2, int Index>
 struct ei_matrix_assignment_packet_unroller
 {
   enum {
-    row = Derived1::Flags&RowMajorBit ? Index / Derived1::ColsAtCompileTime : Index % Derived1::RowsAtCompileTime,
-    col = Derived1::Flags&RowMajorBit ? Index % Derived1::ColsAtCompileTime : Index / Derived1::RowsAtCompileTime
+    row = int(Derived1::Flags)&RowMajorBit ? Index / int(Derived1::ColsAtCompileTime) : Index % Derived1::RowsAtCompileTime,
+    col = int(Derived1::Flags)&RowMajorBit ? Index % int(Derived1::ColsAtCompileTime) : Index / Derived1::RowsAtCompileTime
   };
 
   inline static void run(Derived1 &dst, const Derived2 &src)
@@ -99,12 +99,12 @@ struct ei_matrix_assignment_packet_unroller<Derived1, Derived2, Dynamic>
 };
 
 template <typename Derived, typename OtherDerived,
-bool Vectorize = (Derived::Flags & OtherDerived::Flags & VectorizableBit)
-              && ((Derived::Flags&RowMajorBit)==(OtherDerived::Flags&RowMajorBit))
-              && (  (Derived::Flags & OtherDerived::Flags & Like1DArrayBit)
-                  ||((Derived::Flags&RowMajorBit)
-                    ? Derived::ColsAtCompileTime!=Dynamic && (Derived::ColsAtCompileTime%ei_packet_traits<typename Derived::Scalar>::size==0)
-                    : Derived::RowsAtCompileTime!=Dynamic && (Derived::RowsAtCompileTime%ei_packet_traits<typename Derived::Scalar>::size==0)) ),
+bool Vectorize = (int(Derived::Flags) & int(OtherDerived::Flags) & VectorizableBit)
+              && ((int(Derived::Flags)&RowMajorBit)==(int(OtherDerived::Flags)&RowMajorBit))
+              && (  (int(Derived::Flags) & int(OtherDerived::Flags) & Like1DArrayBit)
+                  ||((int(Derived::Flags)&RowMajorBit)
+                    ? int(Derived::ColsAtCompileTime)!=Dynamic && (int(Derived::ColsAtCompileTime)%ei_packet_traits<typename Derived::Scalar>::size==0)
+                    : int(Derived::RowsAtCompileTime)!=Dynamic && (int(Derived::RowsAtCompileTime)%ei_packet_traits<typename Derived::Scalar>::size==0)) ),
 bool TriangularAssign = Derived::Flags & (NullLowerBit | NullUpperBit)>
 struct ei_assignment_impl;
 
@@ -156,7 +156,7 @@ struct ei_assignment_impl<Derived, OtherDerived, false, false>
     {
       ei_matrix_assignment_unroller
         <Derived, OtherDerived,
-        unroll ? Derived::SizeAtCompileTime : Dynamic
+        unroll ? int(Derived::SizeAtCompileTime) : Dynamic
         >::run(dst.derived(), src.derived());
     }
     else
@@ -190,8 +190,8 @@ struct ei_assignment_impl<Derived, OtherDerived, true, false>
 //       std::cout << "vectorized unrolled\n";
       ei_matrix_assignment_packet_unroller
         <Derived, OtherDerived,
-          unroll && int(Derived::SizeAtCompileTime)>=ei_packet_traits<typename Derived::Scalar>::size
-            ? Derived::SizeAtCompileTime-ei_packet_traits<typename Derived::Scalar>::size
+          unroll && int(Derived::SizeAtCompileTime)>=int(ei_packet_traits<typename Derived::Scalar>::size)
+            ? int(Derived::SizeAtCompileTime)-int(ei_packet_traits<typename Derived::Scalar>::size)
             : Dynamic>::run(dst.const_cast_derived(), src.derived());
     }
     else
diff --git a/Eigen/src/Core/Coeffs.h b/Eigen/src/Core/Coeffs.h
index 28845cd95..b58b2e0d2 100644
--- a/Eigen/src/Core/Coeffs.h
+++ b/Eigen/src/Core/Coeffs.h
@@ -256,7 +256,7 @@ template<typename Derived>
 template<int StoreMode>
 inline void MatrixBase<Derived>::writePacketCoeff
 (int row, int col, const typename ei_packet_traits<typename ei_traits<Derived>::Scalar>::type& x)
-{ return derived().template _writePacketCoeff<StoreMode>(row,col,x); }
+{ derived().template _writePacketCoeff<StoreMode>(row,col,x); }
 
 
 #endif // EIGEN_COEFFS_H
diff --git a/Eigen/src/Core/CwiseBinaryOp.h b/Eigen/src/Core/CwiseBinaryOp.h
index daa81ddb7..dde7de437 100644
--- a/Eigen/src/Core/CwiseBinaryOp.h
+++ b/Eigen/src/Core/CwiseBinaryOp.h
@@ -68,11 +68,11 @@ struct ei_traits<CwiseBinaryOp<BinaryOp, Lhs, Rhs> >
     ColsAtCompileTime = Lhs::ColsAtCompileTime,
     MaxRowsAtCompileTime = Lhs::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = Lhs::MaxColsAtCompileTime,
-    Flags = ((LhsFlags | RhsFlags) & (
+    Flags = ((int(LhsFlags) | int(RhsFlags)) & (
         DefaultLostFlagMask
       | Like1DArrayBit
-      | (ei_functor_traits<BinaryOp>::IsVectorizable && ((LhsFlags & RowMajorBit)==(RhsFlags & RowMajorBit))
-        ? LhsFlags & RhsFlags & VectorizableBit : 0))),
+      | (ei_functor_traits<BinaryOp>::IsVectorizable && ((int(LhsFlags) & RowMajorBit)==(int(RhsFlags) & RowMajorBit))
+        ? int(LhsFlags) & int(RhsFlags) & VectorizableBit : 0))),
     CoeffReadCost = LhsCoeffReadCost + RhsCoeffReadCost + ei_functor_traits<BinaryOp>::Cost
   };
 };
diff --git a/Eigen/src/Core/CwiseNullaryOp.h b/Eigen/src/Core/CwiseNullaryOp.h
index ee986de48..8e28919bb 100644
--- a/Eigen/src/Core/CwiseNullaryOp.h
+++ b/Eigen/src/Core/CwiseNullaryOp.h
@@ -155,7 +155,7 @@ template<typename CustomNullaryOp>
 const CwiseNullaryOp<CustomNullaryOp, Derived>
 MatrixBase<Derived>::create(const CustomNullaryOp& func)
 {
-  return CwiseNullaryOp<CustomNullaryOp, Derived>(rows(), cols(), func);
+  return CwiseNullaryOp<CustomNullaryOp, Derived>(RowsAtCompileTime, ColsAtCompileTime, func);
 }
 
 /** \returns an expression of a constant matrix of value \a value
diff --git a/Eigen/src/Core/DiagonalCoeffs.h b/Eigen/src/Core/DiagonalCoeffs.h
index b9471e7a1..38866d95d 100644
--- a/Eigen/src/Core/DiagonalCoeffs.h
+++ b/Eigen/src/Core/DiagonalCoeffs.h
@@ -46,11 +46,11 @@ struct ei_traits<DiagonalCoeffs<MatrixType> >
   typedef typename ei_nested<MatrixType>::type MatrixTypeNested;
   typedef typename ei_unref<MatrixTypeNested>::type _MatrixTypeNested;
   enum {
-    RowsAtCompileTime = MatrixType::SizeAtCompileTime == Dynamic ? Dynamic
+    RowsAtCompileTime = int(MatrixType::SizeAtCompileTime) == Dynamic ? Dynamic
                       : EIGEN_ENUM_MIN(MatrixType::RowsAtCompileTime,
                                        MatrixType::ColsAtCompileTime),
     ColsAtCompileTime = 1,
-    MaxRowsAtCompileTime = MatrixType::MaxSizeAtCompileTime == Dynamic ? Dynamic
+    MaxRowsAtCompileTime = int(MatrixType::MaxSizeAtCompileTime) == Dynamic ? Dynamic
                             : EIGEN_ENUM_MIN(MatrixType::MaxRowsAtCompileTime,
                                              MatrixType::MaxColsAtCompileTime),
     MaxColsAtCompileTime = 1,
diff --git a/Eigen/src/Core/Dot.h b/Eigen/src/Core/Dot.h
index 28a93e71d..b0ec14a33 100644
--- a/Eigen/src/Core/Dot.h
+++ b/Eigen/src/Core/Dot.h
@@ -85,11 +85,11 @@ MatrixBase<Derived>::dot(const MatrixBase<OtherDerived>& other) const
   Scalar res;
   const bool unroll = SizeAtCompileTime
                       * (_Nested::CoeffReadCost + _OtherNested::CoeffReadCost + NumTraits<Scalar>::MulCost)
-                      + (SizeAtCompileTime - 1) * NumTraits<Scalar>::AddCost
+                      + (int(SizeAtCompileTime) - 1) * NumTraits<Scalar>::AddCost
                       <= EIGEN_UNROLLING_LIMIT;
   if(unroll)
-    ei_dot_unroller<SizeAtCompileTime-1,
-                unroll ? SizeAtCompileTime : Dynamic,
+    ei_dot_unroller<int(SizeAtCompileTime)-1,
+                unroll ? int(SizeAtCompileTime) : Dynamic,
                 _Nested, _OtherNested>
       ::run(nested, otherNested, res);
   else
@@ -135,7 +135,7 @@ template<typename Derived>
 inline const CwiseUnaryOp<ei_scalar_multiple_op<typename ei_traits<Derived>::Scalar>, Derived>
 MatrixBase<Derived>::normalized() const
 {
-  return (*this) * (Scalar(1)/norm());
+  return (*this) * (RealScalar(1)/norm());
 }
 
 /** \returns true if *this is approximately orthogonal to \a other,
diff --git a/Eigen/src/Core/MathFunctions.h b/Eigen/src/Core/MathFunctions.h
index 5ba37c076..557b93f56 100644
--- a/Eigen/src/Core/MathFunctions.h
+++ b/Eigen/src/Core/MathFunctions.h
@@ -46,7 +46,7 @@ inline int ei_log(int)  { ei_assert(false); return 0; }
 inline int ei_sin(int)  { ei_assert(false); return 0; }
 inline int ei_cos(int)  { ei_assert(false); return 0; }
 
-#if EIGEN_GNUC_AT_LEAST(4,2)
+#if (!(EIGEN_GNUC_AT_LEAST(4,3)))
 inline int ei_pow(int x, int y) { return int(std::pow(double(x), y)); }
 #else
 inline int ei_pow(int x, int y) { return std::pow(x, y); }
diff --git a/Eigen/src/Core/MatrixBase.h b/Eigen/src/Core/MatrixBase.h
index 9078e5677..d14fec1f1 100644
--- a/Eigen/src/Core/MatrixBase.h
+++ b/Eigen/src/Core/MatrixBase.h
@@ -396,7 +396,7 @@ template<typename Derived> class MatrixBase
     bool isOrtho(const MatrixBase<OtherDerived>& other,
                  RealScalar prec = precision<Scalar>()) const;
     bool isOrtho(RealScalar prec = precision<Scalar>()) const;
-
+    
     template<typename OtherDerived>
     inline bool operator==(const MatrixBase<OtherDerived>& other) const
     { return derived().cwiseEqualTo(other.derived()).all(); }
@@ -563,6 +563,11 @@ template<typename Derived> class MatrixBase
     //@{
     const QR<typename ei_eval<Derived>::type> qr() const;
     //@}
+    
+        
+    #ifdef EIGEN_MATRIX_CUSTOM_ADDONS_FILE
+    #include EIGEN_MATRIX_CUSTOM_ADDONS_FILE
+    #endif
 
 };
 
diff --git a/Eigen/src/Core/Minor.h b/Eigen/src/Core/Minor.h
index 4a0edc3a3..d7e08c4e0 100644
--- a/Eigen/src/Core/Minor.h
+++ b/Eigen/src/Core/Minor.h
@@ -45,13 +45,13 @@ struct ei_traits<Minor<MatrixType> >
   typedef typename ei_unref<MatrixTypeNested>::type _MatrixTypeNested;
   enum {
     RowsAtCompileTime = (MatrixType::RowsAtCompileTime != Dynamic) ?
-                          MatrixType::RowsAtCompileTime - 1 : Dynamic,
+                          int(MatrixType::RowsAtCompileTime) - 1 : Dynamic,
     ColsAtCompileTime = (MatrixType::ColsAtCompileTime != Dynamic) ?
-                          MatrixType::ColsAtCompileTime - 1 : Dynamic,
+                          int(MatrixType::ColsAtCompileTime) - 1 : Dynamic,
     MaxRowsAtCompileTime = (MatrixType::MaxRowsAtCompileTime != Dynamic) ?
-                                MatrixType::MaxRowsAtCompileTime - 1 : Dynamic,
+                             int(MatrixType::MaxRowsAtCompileTime) - 1 : Dynamic,
     MaxColsAtCompileTime = (MatrixType::MaxColsAtCompileTime != Dynamic) ?
-                                MatrixType::MaxColsAtCompileTime - 1 : Dynamic,
+                             int(MatrixType::MaxColsAtCompileTime) - 1 : Dynamic,
     Flags = _MatrixTypeNested::Flags & DefaultLostFlagMask,
     CoeffReadCost = _MatrixTypeNested::CoeffReadCost
   };
diff --git a/Eigen/src/Core/Redux.h b/Eigen/src/Core/Redux.h
index 5b14f5b27..5672effc7 100644
--- a/Eigen/src/Core/Redux.h
+++ b/Eigen/src/Core/Redux.h
@@ -94,7 +94,7 @@ struct ei_traits<PartialRedux<Direction, BinaryOp, MatrixType> >
     ColsAtCompileTime = Direction==Horizontal ? 1 : MatrixType::ColsAtCompileTime,
     MaxRowsAtCompileTime = Direction==Vertical   ? 1 : MatrixType::MaxRowsAtCompileTime,
     MaxColsAtCompileTime = Direction==Horizontal ? 1 : MatrixType::MaxColsAtCompileTime,
-    Flags = ((RowsAtCompileTime == Dynamic || ColsAtCompileTime == Dynamic)
+    Flags = ((int(RowsAtCompileTime) == Dynamic || int(ColsAtCompileTime) == Dynamic)
           ? (unsigned int)_MatrixTypeNested::Flags
           : (unsigned int)_MatrixTypeNested::Flags & ~LargeBit) & DefaultLostFlagMask,
     TraversalSize = Direction==Vertical ? RowsAtCompileTime : ColsAtCompileTime,
@@ -182,7 +182,7 @@ MatrixBase<Derived>::redux(const BinaryOp& func) const
                     <= EIGEN_UNROLLING_LIMIT;
   if(unroll)
     return ei_redux_unroller<BinaryOp, Derived, 0,
-                             unroll ? SizeAtCompileTime : Dynamic>
+                             unroll ? int(SizeAtCompileTime) : Dynamic>
            ::run(derived(), func);
   else
   {
@@ -304,7 +304,7 @@ bool MatrixBase<Derived>::all(void) const
                       <= EIGEN_UNROLLING_LIMIT;
   if(unroll)
     return ei_all_unroller<Derived,
-                           unroll ? SizeAtCompileTime : Dynamic
+                           unroll ? int(SizeAtCompileTime) : Dynamic
      >::run(derived());
   else
   {
@@ -326,7 +326,7 @@ bool MatrixBase<Derived>::any(void) const
                       <= EIGEN_UNROLLING_LIMIT;
   if(unroll)
     return ei_any_unroller<Derived,
-                           unroll ? SizeAtCompileTime : Dynamic
+                           unroll ? int(SizeAtCompileTime) : Dynamic
            >::run(derived());
   else
   {
diff --git a/Eigen/src/Core/Transpose.h b/Eigen/src/Core/Transpose.h
index e7f37bbae..5d4cbd2f4 100644
--- a/Eigen/src/Core/Transpose.h
+++ b/Eigen/src/Core/Transpose.h
@@ -48,7 +48,7 @@ struct ei_traits<Transpose<MatrixType> >
     ColsAtCompileTime = MatrixType::RowsAtCompileTime,
     MaxRowsAtCompileTime = MatrixType::MaxColsAtCompileTime,
     MaxColsAtCompileTime = MatrixType::MaxRowsAtCompileTime,
-    Flags = _MatrixTypeNested::Flags ^ RowMajorBit,
+    Flags = int(_MatrixTypeNested::Flags) ^ RowMajorBit,
     CoeffReadCost = _MatrixTypeNested::CoeffReadCost
   };
 };
diff --git a/Eigen/src/Core/TriangularAssign.h b/Eigen/src/Core/TriangularAssign.h
index ec208f2ad..7b1be135e 100644
--- a/Eigen/src/Core/TriangularAssign.h
+++ b/Eigen/src/Core/TriangularAssign.h
@@ -80,7 +80,7 @@ struct ei_assignment_impl<Derived, OtherDerived, DummyVectorize, true>
     if(unroll)
     {
       ei_triangular_assign_unroller
-        <Derived, OtherDerived, unroll ? Derived::SizeAtCompileTime : Dynamic, Derived::Flags>::run
+        <Derived, OtherDerived, unroll ? int(Derived::SizeAtCompileTime) : Dynamic, Derived::Flags>::run
           (dst.derived(), src.derived());
     }
     else
diff --git a/Eigen/src/Core/Visitor.h b/Eigen/src/Core/Visitor.h
index 9dd8ef661..6e00e4142 100644
--- a/Eigen/src/Core/Visitor.h
+++ b/Eigen/src/Core/Visitor.h
@@ -79,7 +79,7 @@ void MatrixBase<Derived>::visit(Visitor& visitor) const
                     <= EIGEN_UNROLLING_LIMIT;
   if(unroll)
     return ei_visitor_unroller<Visitor, Derived,
-        unroll ? SizeAtCompileTime : Dynamic
+        unroll ? int(SizeAtCompileTime) : Dynamic
       >::run(derived(), visitor);
   else
   {
diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h
index 264802b9b..3c4596d4c 100644
--- a/Eigen/src/Core/util/Meta.h
+++ b/Eigen/src/Core/util/Meta.h
@@ -158,9 +158,9 @@ class ei_corrected_matrix_flags
     };
 
   public:
-    enum { ret = is_vectorizable
-                  ? _flags1 | VectorizableBit
-                  : _flags1 & ~VectorizableBit
+    enum { ret = int(is_vectorizable)
+                  ? int(_flags1) | int(VectorizableBit)
+                  : int(_flags1) & ~int(VectorizableBit)
     };
 };
 
@@ -208,8 +208,8 @@ template<typename T, int n=1> struct ei_nested
     ei_is_temporary<T>::ret,
     T,
     typename ei_meta_if<
-      ei_traits<T>::Flags & EvalBeforeNestingBit
-      || (n+1) * NumTraits<typename ei_traits<T>::Scalar>::ReadCost < (n-1) * T::CoeffReadCost,
+      int(ei_traits<T>::Flags) & EvalBeforeNestingBit
+      || (n+1) * int(NumTraits<typename ei_traits<T>::Scalar>::ReadCost) < (n-1) * int(T::CoeffReadCost),
       typename ei_eval<T>::type,
       const T&
     >::ret