Re: [Boost-users] problems using overloaded output operator with program_optoins::optoins_description in debug mode vc++ 7.1

From: Alan M. Carroll (amc_at_[hidden])
Date: 2005-08-11 09:46:06

Those errors, particularly the first one, are indicative of mixed run time / memory models in the compiled application where memory is allocated under one model and released under the other. 12 characters is probably where std::string switches from internal storage to allocated memory (it's a little less than 16 characters but I haven't checked the exact value lately). I'd check the run-time library settings in all of your libraries and make sure that they are consistent (under Project Properties, go to C/C++ | Code Generation | Runtime Library).

At 06:55 AM 8/11/2005, stark wrote:

>Hi
>
>I'm trying to use the program_options header to satisfy my command line 
>needs, and I have have run into the following quirk with boost version 
>1.32 and microsoft visual c++ 7.1 when trying to use 'cout<<' to output 
>the program_options::options_description.
>Appartently there is a limit to the length of the program option name.
>
>When not specifying short optoins names, the option name seems to be 
>limited to 12 characters.  greater than this and I get a debug assertion 
>failure in dbgheap.c line 1132 expression: 
>_CrtIsValidHeapPointer(pUserData) .
>
>When specifying a short option name, the limit for the full name seems 
>to be 6 characters.  More than this results in a debug assertion falure 
>in debug mode (msvc++ 7.1, file dbgdel.cpp, line 52) 
>_BLOCK_TYPE_IS_VALID(pHead->nBlockUse).
>Is there something I can do to to fix this or work around the problem 
>(besides restricting the length of my option names)?  Is this a compiler 
>specific problem?  Something wrong with my settings?
>
>many thanks,
>
>Glen Stark
>
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