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    <p>Looks to me like this <a href="https://connect.microsoft.com/VisualStudio/feedback/details/482753/default-value-not-honoured-in-template-function-parameter" rel="nofollow noreferrer">bug in VC++</a> regarding default values in template functions. </p> <p>There's a very similar bug <a href="http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/17497297-5fdc-437c-b50c-efee048dd8cb" rel="nofollow noreferrer">here</a> in August 2009 (closed as 'fixed' by M$ in their next release)... it's consistent in tons of ways: it's VC++ specific and works in GCC, results in intermittent failure with default template arguments (but never compile-time issues), and the problem only crops up on the second instantiation.</p> <p>That said, I can't explain the compiler output, or the magic 10 loops... :-)</p> <p>VC++ even has an old article on <a href="http://support.microsoft.com/kb/182046" rel="nofollow noreferrer">workarounds with templates</a>. with very similar bugs so recently, and how consistent your bug and Color_of_Green's bug seem, it's probably VC++ and not Boost.</p> <p>My guess? It's choking on these signatures: <code>const T &amp; data = T()</code> in graph_elements_collection.h. MSFT recommends changing that to <code>const T data = T()</code>. To verify that it's related to this compiler bug, try that, or the workarounds posted by MSFT... <a href="http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/17497297-5fdc-437c-b50c-efee048dd8cb" rel="nofollow noreferrer">here</a>...</p>
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    1. PONeed help with BOOST_FOREACH/compiler bug
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    1. USRobert Karl
    1. USRobert Karl
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      1. VTUpMod
    1. COSince Visual C++ 2010 is now available, have you tried repeating this with the newer compiler to see if the problem goes away? If so you can be pretty sure it was a bug that is fixed.
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      1. USKate Gregory
    2. CONot sure why you would ever do `const t data = T()` instead of just `const t`.
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      1. USPuppy
    3. CO@DeadMG: sorry I don't understand, could you elaborate please?
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      1. USSaul
 

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