[Boost-bugs] [Boost C++ Libraries] #4256: boost::make_shared() may issue stack overflow while constructing large objects

Subject: [Boost-bugs] [Boost C++ Libraries] #4256: boost::make_shared() may issue stack overflow while constructing large objects
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-05-25 11:03:31

#4256: boost::make_shared() may issue stack overflow while constructing large
objects
----------------------------------------+-----------------------------------
 Reporter:  faridz@…                    |       Owner:  pdimov   
     Type:  Bugs                        |      Status:  new      
Milestone:  Boost 1.44.0                |   Component:  smart_ptr
  Version:  Boost 1.43.0                |    Severity:  Problem  
 Keywords:  make_shared stack overflow  |  
----------------------------------------+-----------------------------------
 By default stack size for windows executable is 1Mb. The program below
 fails with stack overflow exception. In debug builds the stack overflow
 exception issued with A_Size >= "stack size" / 3. In release builds due to
 optimizations, the stack overflow exception issued with A_Size >= "stack
 size" / 2.

 {{{
 #include <cstddef>
 #include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>

 const std::size_t A_Size = 512;

 struct A
 {
     char buf_[A_Size * 1024];
 };

 int main()
 {
     boost::shared_ptr<A> pa(boost::make_shared<A>());
     //boost::shared_ptr<A> pa(new A());

     return 0;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4256>
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