Subject: Re: [boost] [Boost Graph Library] Having trouble constructing necessary parameters for the isomorphism algorithm
From: Alexander Bock (sky_ax_at_[hidden])
Date: 2011-01-15 06:30:12
The attached project should compile, and crash at the same location. Note that it was compiled in MSVC++ 2008 Express Edition with Boost 1.43
It looks like my STL implementation uses _SCL_SECURE_VALIDATE_RANGE(*range checking goes here*) to check bounds. I do not have Valgrind or a tool similar to it. I just used the debugging mode in MSVC++.
The BoostGraph::Compare(BoostGraph& comparableGraph) implements the isomorphism algorithm. I'm using Boost for a bioinformatics project. The ViennaFile::dotBracket strings are identical and thus generate the same graph.
> Date: Mon, 10 Jan 2011 10:44:21 -0500
> From: jewillco_at_[hidden]
> To: boost_at_[hidden]
> Subject: Re: [boost] [Boost Graph Library] Having trouble constructing necessary parameters for the isomorphism algorithm
> On Sun, 9 Jan 2011, Alexander Bock wrote:
> > Ok. I don't see the appropriate function in the header. I see one that looks like one on line 387 in isomorphism.hpp though.
> > Through trial and error, I managed to get the code to compile by changing the container for vertices from listS to vecS. I ran some tests and sometimes it works, but on strange occasions the program crashes with what looks like an index out of range message...I tracked down the crash to line 205 of isomorphism.hpp in the function bool match(edge_iter iter, int dfs_num_k). I have no idea if this is an actual bug (I doubt it though) or what I'm doing wrong.
> > Here's the full error message:
> > Expression: ("_Myptr + _Off <= ((_Myvec *)(this->_Getmycont()))->_Mylast && _Myptr + _Off >= ((_Myvec *)(this->_Getmycont()))->_Myfirst", 0)
> > The error occurs on line 163 in the STL vector header.
> Do you have a simple, complete example that I could try? Does your STL
> implementation have a debugging mode that turns on bounds checking, or do
> you have a tool similar to Valgrind?
> -- Jeremiah Willcock
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