Introduce internal's UIntPtr and IntPtr types for pointer to integer conversions.

This fixes "conversion from pointer to same-sized integral type" warnings by ICC.
Ideally, we would use the std::[u]intptr_t types all the time, but since they are C99/C++11 only,
let's be safe.

1 files changed, 8 insertions, 0 deletions

diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h
index 1bb6a6ed6..604f509b9 100644
--- a/Eigen/src/Core/util/Meta.h
+++ b/Eigen/src/Core/util/Meta.h
@@ -27,6 +27,14 @@ namespace internal {
   * we however don't want to add a dependency to Boost.
   */
 
+#if EIGEN_COMP_ICC
+typedef std::intptr_t IntPtr;
+typedef std::uintptr_t UIntPtr;
+#else
+typedef std::ptrdiff_t IntPtr;
+typedef std::size_t UIntPtr;
+#endif
+
 struct true_type {  enum { value = 1 }; };
 struct false_type { enum { value = 0 }; };