Hello,<div><br></div><div>Thank you for debugging and for having tracked the error down.</div><div><br></div><div>I'm aware of some compatibility issues/bugs in the tr1/random libraries. I will look into the problem in the next few days and I hope to release a fix real soon.</div>
<div><br></div><div>Mirko</div><div><br></div><div><br><div class="gmail_quote">On Tue, Nov 9, 2010 at 1:01 AM, Shahin Gelareh <span dir="ltr"><<a href="mailto:shahin.gelareh@gmail.com">shahin.gelareh@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi everybody,<br><br>It seems like there have been a lot of changes from 4.3 to 5. Thanks for the efforts.<br>The code I had in 4.3 does not work anymore with 5, it is of course migratable but now the main concern is regarding the suffleing algorithm of STL.<br>
The results in windows and using MSVC (MSVS2010)compiler is not what one expects. This is for example the case for qap example. <br>I personally cannot run it. It reports exception and exits.<br><br>One only needs to trace the code until:<br>
template<typename random_generator><br> void random_shuffle(permutation_problem& p, random_generator& rng)<br> {<br>#if defined (METSLIB_HAVE_UNORDERED_MAP) && !defined (METSLIB_TR1_MIXED_NAMESPACE)<br>
std::uniform_int<> unigen(0, p.pi_m.size());<br> std::variate_generator<random_generator, <br> std::uniform_int<> >gen(rng, unigen);<br>#else<br> std::tr1::uniform_int<> unigen(0, p.pi_m.size());<br>
std::tr1::variate_generator<random_generator, <br> std::tr1::uniform_int<> >gen(rng, unigen);<br>#endif<br> std::random_shuffle(p.pi_m.begin(), p.pi_m.end(), gen);<br> p.update_cost();<br> }<br>
<br><br>The output of this "std::random_shuffle(p.pi_m.begin(), p.pi_m.end(), gen);" is the original permutation where some of the cells are swapped BUT there are some strange numbers among the numbers. large positive values specifically. I searched a lot with no success about how to overcome.<br>
<br>I was wondering if anyone has any idea?<br><br>
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