From 5ffe29cb9f260f35f1ae0f878885a77d42a29d8b Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Fri, 13 Mar 2015 20:57:33 +0100
Subject: [PATCH] Bound pre-allocation to the maximal size representable by
 StorageIndex and throw bad_alloc if that's not possible.

---
 Eigen/src/SparseCore/CompressedStorage.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Eigen/src/SparseCore/CompressedStorage.h b/Eigen/src/SparseCore/CompressedStorage.h
index 49fd46658..52c7da297 100644
--- a/Eigen/src/SparseCore/CompressedStorage.h
+++ b/Eigen/src/SparseCore/CompressedStorage.h
@@ -86,7 +86,12 @@ class CompressedStorage
     void resize(Index size, double reserveSizeFactor = 0)
     {
       if (m_allocatedSize<size)
-        reallocate(size + Index(reserveSizeFactor*double(size)));
+      {
+        Index realloc_size = (std::min<Index>)(NumTraits<StorageIndex>::highest(),  size + Index(reserveSizeFactor*double(size)));
+        if(realloc_size<size)
+          internal::throw_std_bad_alloc();
+        reallocate(realloc_size);
+      }
       m_size = size;
     }