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

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

I don't know if this is the problem, but I noticed that the problem does indeed involve the 16 byte internal array. When this array is exceeded a memory fault occurs. You don't happen to remember where you read about this, do you? -----Original Message----- I had read in some place that the string implementation of .NET uses an internal array of 16 chars when the string is small enough and grows only when that isn't enough. This can cause problems for strings created on the stack and passed to external procedures. Can this be the case ? (I don't have .NET so I don't know if this is true). Nuno Lucas At 11:07 03-07-2002 -0500, you wrote: 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@yahoo.com] Sent: Wednesday, July 03, 2002 3:03 AM To: Boost-Users@yahoogroups.com 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 wrote:

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When I upgraded to Visual Studio .NET my programs

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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

--- In Boost-Users@y..., "john_p_osborn" wrote: that use regex++ problem with the new MS

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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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