Index: boost/pool/pool.hpp

===================================================================

--- boost/pool/pool.hpp	(revision 78317)

+++ boost/pool/pool.hpp	(revision 78326)

@@ -27,4 +27,6 @@

 #include <boost/pool/poolfwd.hpp>

+// std::numeric_limits

+#include <boost/limits.hpp>

 // boost::math::static_lcm

 #include <boost/math/common_factor_ct.hpp>

@@ -358,4 +360,13 @@

     }

+    size_type max_chunks() const

+    { //! Calculated maximum number of memory chunks that can be allocated in a single call by this Pool.

+      size_type partition_size = alloc_size();

+      size_type POD_size = math::static_lcm<sizeof(size_type), sizeof(void *)>::value + sizeof(size_type);

+      size_type max_chunks = (std::numeric_limits<size_type>::max() - POD_size) / alloc_size();

+    

+      return max_chunks;

+    }

+

     static void * & nextof(void * const ptr)

     { //! \returns Pointer dereferenced.

@@ -377,5 +388,7 @@

       //!   the first time that object needs to allocate system memory.

       //!   The default is 32. This parameter may not be 0.

-      //! \param nmax_size is the maximum number of chunks to allocate in one block.

+      //! \param nmax_size is the maximum number of chunks to allocate in one block.			

+      set_next_size(nnext_size);

+      set_max_size(nmax_size);

     }

@@ -400,7 +413,7 @@

     }

     void set_next_size(const size_type nnext_size)

-    { //! Set number of chunks to request from the system the next time that object needs to allocate system memory. This value should never be set to 0.

-      //! \returns nnext_size.

-      next_size = start_size = nnext_size;

+    { //! Set number of chunks to request from the system the next time that object needs to allocate system memory. This value should never be set to 0.     

+      BOOST_USING_STD_MIN();

+      next_size = start_size = min BOOST_PREVENT_MACRO_SUBSTITUTION(nnext_size, max_chunks());

     }

     size_type get_max_size() const

@@ -410,5 +423,6 @@

     void set_max_size(const size_type nmax_size)

     { //! Set max_size.

-      max_size = nmax_size;

+      BOOST_USING_STD_MIN();

+      max_size = min BOOST_PREVENT_MACRO_SUBSTITUTION(nmax_size, max_chunks());

     }

     size_type get_requested_size() const

@@ -713,7 +727,7 @@

   BOOST_USING_STD_MIN();

   if(!max_size)

-    next_size <<= 1;

+    set_next_size(next_size << 1);

   else if( next_size*partition_size/requested_size < max_size)

-    next_size = min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size*requested_size/ partition_size);

+    set_next_size(min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size * requested_size / partition_size));

   //  initialize it,

@@ -753,7 +767,7 @@

   BOOST_USING_STD_MIN();

   if(!max_size)

-    next_size <<= 1;

+    set_next_size(next_size << 1);

   else if( next_size*partition_size/requested_size < max_size)

-    next_size = min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size*requested_size/ partition_size);

+    set_next_size(min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size * requested_size / partition_size));

   //  initialize it,

@@ -797,4 +811,6 @@

   //! \returns Address of chunk n if allocated ok.

   //! \returns 0 if not enough memory for n chunks.

+  if (n > max_chunks())

+    return 0;

   const size_type partition_size = alloc_size();

@@ -845,7 +861,7 @@

   BOOST_USING_STD_MIN();

   if(!max_size)

-    next_size <<= 1;

+    set_next_size(next_size << 1);

   else if( next_size*partition_size/requested_size < max_size)

-    next_size = min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size*requested_size/ partition_size);

+    set_next_size(min BOOST_PREVENT_MACRO_SUBSTITUTION(next_size << 1, max_size * requested_size / partition_size));

   //  insert it into the list,

Index: libs/pool/test/test_bug_6701.cpp

===================================================================

--- libs/pool/test/test_bug_6701.cpp	(revision 78326)

+++ libs/pool/test/test_bug_6701.cpp	(revision 78326)

@@ -0,0 +1,27 @@

+/* Copyright (C) 2012 Étienne Dupuis

+* 

+* Use, modification and distribution is subject to the 

+* Boost Software License, Version 1.0. (See accompanying

+* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)

+*/

+

+// Test of bug #6701 (https://svn.boost.org/trac/boost/ticket/6701)

+

+#include <boost/pool/object_pool.hpp>

+#include <boost/limits.hpp>

+

+int main()

+{

+  boost::pool<> p(1024, std::numeric_limits<size_t>::max() / 768);

+

+  void *x = p.malloc();

+  BOOST_ASSERT(!x);

+  

+  BOOST_ASSERT(std::numeric_limits<size_t>::max() / 1024 >= p.get_next_size());

+  BOOST_ASSERT(std::numeric_limits<size_t>::max() / 1024 >= p.get_max_size());

+

+  void *y = p.ordered_malloc(std::numeric_limits<size_t>::max() / 768);

+  BOOST_ASSERT(!y);

+

+  return 0;

+}