id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
1007,boost::signals::trackable::operator= bug,anonymous,Douglas Gregor,"Boost: 1.34.0
Compiler: MSVC 8.0 (without SP1).

Here is, minimal example.

struct Conn : public boost::signals::trackable
{
    void operator()(){}
};

void f()
{
    boost::signal<void ()>  sig;
    Conn c;
    sig.connect( c );

    c = Conn();    // crash inside..
}


The reason is simple. During clear() method of std::list, there are
signals::connection destructor calls are happening, which, in turn, calling
erase method of the same std::list, and as a result we're getting
_DEBUG_ERROR(""list erase iterator outside range"");

I guess, the bug is with ""dying"" variable: in destructor, it was set to
true, and then signals::connection destructors are not trying to remove
themself from the std::list. But in boost::signals::trackable::operator=()
there is no dying flag marking.

Evgeny.


",Bugs,closed,,signals,Boost 1.34.0,Problem,fixed,,