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Failing to compile code that uses boost::signals2

dnesteruk
Beginner
‎05-30-2014 01:55 PM
364 Views

The following code fails to compile (Boost 1.55, latest Intel C++ compiler):

 

class Order {};

class Foo
{
  signal<void(Order*)> beforeOrder;

  void test(Order* o)
  {
    beforeOrder(o);
  }
};

int main(int argc, char* argv[])
{
  Order o;
  Foo foo;

    return 0;
}

 

Here's the compiler output:

1>C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xmemory(348): warning C4996: 'std::_Uninitialized_copy0': Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators'
1>          C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xmemory(333) : see declaration of 'std::_Uninitialized_copy0'
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(192) : see reference to function template instantiation '_FwdIt std::uninitialized_copy<I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_>*>(_InIt,_InIt,_FwdIt)' being compiled
1>          with
1>          [
1>              _FwdIt=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>  ,            _InIt=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(179) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_rai<I,false>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *,const boost::integral_constant<bool,false> &)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(179) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_rai<I,false>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *,const boost::integral_constant<bool,false> &)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(205) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_impl<I>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *,std::random_access_iterator_tag)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(205) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_impl<I>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *,std::random_access_iterator_tag)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(289) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_impl<boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_>*>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(289) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::copy_impl<boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_>*>(I,I,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>  ,            I=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(282) : while compiling class template member function 'boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::move_to_new_buffer(unsigned __int64,const boost::false_type &)'
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>          ]
1>          c:\boost\boost/signals2/detail/auto_buffer.hpp(304) : see reference to function template instantiation 'boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_> *boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>::move_to_new_buffer(unsigned __int64,const boost::false_type &)' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>          ]
1>          c:\boost\boost/signals2/detail/slot_call_iterator.hpp(40) : see reference to class template instantiation 'boost::signals2::detail::auto_buffer<boost::signals2::detail::void_shared_ptr_variant,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<_Ty>>' being compiled
1>          with
1>          [
1>              _Ty=boost::signals2::detail::void_shared_ptr_variant
1>          ]
1>          c:\boost\boost/signals2/detail/slot_call_iterator.hpp(44) : see reference to class template instantiation 'boost::signals2::detail::slot_call_iterator_cache<ResultType,Function>' being compiled

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2 Replies
JenniferJ
Moderator
‎06-03-2014 12:50 PM
364 Views

which .hpp file under signals2 to include for the testcase you provide?

Jennifer

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JenniferJ
Moderator
‎06-03-2014 04:16 PM
364 Views

ok, got a compliable testcase below. The issue exists in the 14.0 compiler, but fixed in the 15.0 beta.

You can register for the 15.0 beta program at 15.0 beta page.

I will file a CQ for it to make sure the fix does cover the case.

#include "boost/signals2/signal.hpp"
using namespace boost;
using namespace signals2;

class Order {};

class Foo
{
 signal<void(Order*)> beforeOrder;
 void test(Order* o)
 {
  beforeOrder(o);
 }
};

int main(int argc, char* argv[])
{
 Order o;
 Foo foo;
 return 0;
}

Thanks,

Jennifer

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