RE: [Boost-Users] Re: RegEx++ and Visual Studio .NET STL Problems

From: John Osborn (john_at_[hidden])
Date: 2002-07-03 11:07:29

I'm checking my code for memory overwrites, but I'm fairly certain that's
not the cause (at least on my part).  I 'm thinking that it is a code
generation problem as John Maddock described.

I am calling regex++ from a COM inproc server dll.  It won't link if I try
to link to the static boost library because various STL calls are already
defined.  If I use the boost dll then I get the heap problem as already
described.

With MSVC++ version 6 I am able to link to the static boost library with no
problem.
  -----Original Message-----
  From: Nir Dremer [mailto:nir_dremer_at_[hidden]]
  Sent: Wednesday, July 03, 2002 3:03 AM
  To: Boost-Users_at_[hidden]
  Subject: Re: [Boost-Users] Re: RegEx++ and Visual Studio .NET STL Problems

  This problem is bad heap allocation.
  if anywhere in your program you create something using
  the new operand and afterward access some ilegal
  position (beyond the end of the allocation) - vc7
  compiler will detect that and will popup an assert.

  regex++ is working excellent with vc7 so you can
  assume it's something in the code you wrote that
  corrupts the heap.

  Good idea would be to refer to _CrtCheckMemory() API
  and to debug you allocations code.

  Cheers,
  Nir

  --- regexpp <john_maddock_at_[hidden]> wrote:
  > --- In Boost-Users_at_y..., "john_p_osborn"
  > <john_p_osborn_at_y...> wrote:
  > > When I upgraded to Visual Studio .NET my programs
  > that use regex++
  > > stopped working.  Many simple calls fail during
  > string destruction
  > > with bad heap pointers.  I never had any problems
  > under msvc
  > version
  > > 6.  Has anyone else experienced this?  Is a
  > problem with the new MS
  > > STL?
  >
  > Nope, but make doubly sure that you are using a
  > shared memory
  > allocator, and if your project uses dll's that all
  > the dll's are
  > built with the same code generation options (ie the
  > dll runtime).
  >
  > Hope this helps,
  >
  > John Maddock
  >
  >

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