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POProblem with boost::variant, linker giving a segfault
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  1. POProblem with boost::variant, linker giving a segfault
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    copied!<p>I have a boost variant with 7 types in it. When I try to use the last two types, the linker segfaults. I am using g++ (gcc version 3.3.3 on SuSE Linux) on a 64 bit linux machine and the error that I get is</p> <pre><code>collect2: ld terminated with signal 11 [Segmentation fault] </code></pre> <p>It doesnt matter what order I put the types in, the last two will cause a segfault when I try to use them. Any ideas why this would be happening?</p> <p>Code:</p> <pre><code>typedef boost::tuple&lt;std::string, Class1::Ptr&gt; Class1Tuple; typedef boost::tuple&lt;std::string, Class2::Ptr&gt; Class2Tuple; typedef boost::tuple&lt;std::string, Class3::Ptr&gt; Class3Tuple; typedef boost::tuple&lt;std::string, Class4::Ptr&gt; Class4Tuple; typedef boost::tuple&lt;std::string, Class5::Ptr&gt; Class5Tuple; typedef boost::tuple&lt;std::string, Class6::Ptr&gt; Class6Tuple; typedef boost::tuple&lt;std::string, Class7::Ptr&gt; Class7Tuple; typedef boost::variant&lt; Class1Tuple, Class2Tuple, Class3Tuple, Class4Tuple, Class5Tuple, Class6Tuple, Class7Tuple &gt; ClassTupleItem; </code></pre> <p>ClassX::Ptr is a boost shared pointer to that class. Ptr is defined as a typedef inside the class itself as below</p> <pre><code>struct Class1 { typedef boost::shared_ptr&lt;Class1&gt; Ptr; ... ... } </code></pre> <p>when I try to use the last two types in the boost variant as in</p> <pre><code>Class1Tuple tup("str", pointer); ClassTupleItem(tup); // works fine since I used Class1Tuple Class6Tuple tup2("str", pointer2); ClassTupleItem(tup2); // causes a segfault. </code></pre> <p>if I define the boost::variant as (interchange Class6 and Class1)</p> <pre><code>typedef boost::variant&lt; Class6Tuple, Class2Tuple, Class3Tuple, Class4Tuple, Class5Tuple, Class1Tuple, Class7Tuple &gt; ClassTupleItem; </code></pre> <p>then I get a segfault when compiling this code</p> <pre><code>Class1Tuple tup("str", pointer); ClassTupleItem(tup); // worked earlier </code></pre>
 

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