Is this warning about name length always harmless? If not, how do I know if I'm in trouble?
One lovely thing in C++ type manging is when name length is exceeded. The linked question shows how to turn it off. I am using Visual C++ 2008 with Boost 1.53.
However as this is the first time I have encountered this templated and typedef type name limit being reached, and I am using Visual C++ 2008, I want to make sure I am not making a mistake or doing something that could be avoided.
Here are my typedefs:
// second half of the value type's std::pair is a struct:
typedef struct _DATA_AREA_DESC
{
// stuff in here doesn't matter, omitted.
} AreaMappedType;
// key for the map is a string. need to define the type and its allocator. std::string is not suitable on this compiler+standard-library implementation (VC++2008)
typedef boost::interprocess::allocator<char, boost::interprocess::managed_shared_memory::segment_manager> CharAllocator;
typedef boost::interprocess::basic_string<char, std::char_traits<char>, CharAllocator> AreaKeyType;
// AreaMap is a map<AreaKeyType,AreaMappedType>
typedef std::pair<const AreaKeyType, AreaMappedType> AreaValueType;
typedef boost::interprocess::allocator<AreaValueType, boost::interprocess::managed_shared_memory::segment_manager> AreaShmemAllocator;
typedef boost::interprocess::map<AreaKeyType, AreaMappedType, std::less<AreaKeyType>, AreaShmemAllocator> AreaMap;
A snippet of the disgustingly long, unreadable warning details text:
1>c:\program files (x86)\microsoft visual studio 9.0\vc\include\utility(48) : warning C4503: 'std::pair<_Ty1,_Ty2>::pair' : decorated name length exceeded, name was truncated
1> with
1> [
1> _Ty1=boost::intrusive::tree_iterator<boost::intrusive::rbtree_impl<boost::intrusive::setopt<boost::intrusive::detail::base_hook_traits<boost::container::container_detail::rbtree_node<std::pair<const AreaKeyType,AreaMappedType>,boost::interprocess::offset_ptr<void>>,boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>,true>,normal_link,boost::intrusive::default_tag,3>,boost::container::container_detail::node_compare<boost::container::container_detail::tree_value_compare<AreaKeyType,std::pair<const AreaKeyType,AreaMappedType>,std::less<AreaKeyType>,boost::container::container_detail::select1st<std::pair<const AreaKeyType,AreaMappedType>>>,boost::container::container_detail::rbtree_node<std::pair<const AreaKeyType,AreaMappedType>,boost::interprocess::offset_ptr<void>>>,unsigned int,true>>,false>,
1> _Ty2=bool
1> ]
1> c:\dev\boost\boost_1_53_0\boost\container\detail\tree.hpp(750) : see reference to class template instantiation 'std::pair<_Ty1,_Ty2>' being compiled
1> with
1> [
1> _Ty1=boost::intrusive::tree_iterator<boost::intrusive::rbtree_impl<boost::intrusive::setopt<boost::intrusive::detail::base_hook_traits<boost::container::container_detail::rbtree_node<std::pair<const AreaKeyType,AreaMappedType>,boost::interprocess::offset_ptr<void>>,boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>,true>,normal_link,boost::intrusive::default_tag,3>,boost::container::container_detail::node_compare<boost::container::container_detail::tree_value_compare<AreaKeyType,std::pair<const AreaKeyType,AreaMappedType>,std::less<AreaKeyType>,boost::container::container_detail::select1st<std::pair<const AreaKeyType,AreaMappedType>>>,boost::container::container_detail::rbtree_node<std::pair<const AreaKeyType,AreaMappedType>,boost::interprocess::offset_ptr<void>>>,unsigned int,true>>,false>,
1> _Ty2=bool
1> ]
1> c:\dev\boost\boost_1_53_0\boost\container\detail\tree.hpp(749) : while compiling class template member function 'std::pair<_Ty1,_Ty2> boost::container::container_detail::rbtree<Key,Value,KeyOfValue,KeyCompare,A>::insert_unique_check(const boost::container::basic_string<CharT,Traits,Allocator> &,boost::intrusive::detail::tree_algorithms<NodeTraits>::insert_commit_data &)'
1> with
1> [
1> _Ty1=boost::container::container_detail::rbtree<AreaKeyType,std::pair<const AreaKeyType,AreaMappedType>,boost::container::container_detail::select1st<std::pair<const AreaKeyType,AreaMappedType>>,std::less<AreaKeyType>,AreaShmemAllocator>::iterator,
1> _Ty2=bool,
1> Key=AreaKeyType,
1> Value=std::pair<const AreaKeyType,AreaMappedType>,
1> KeyOfValue=boost::container::container_detail::select1st<std::pair<const AreaKeyType,AreaMappedType>>,
1> KeyCompare=std::less<AreaKeyType>,
1> A=AreaShmemAllocator,
1> CharT=char,
1> Traits=std::char_traits<char>,
1> Allocator=CharAllocator,
1> NodeTraits=boost::intrusive::rbtree_node_traits<boost::interprocess::offset_ptr<void>,true>
1> ]
1> c:\dev\boost\boost_1_53_0\boost\container\map.hpp(82) : see reference to class template instantiation 'boost::container::container_detail::rbtree<Key,Value,KeyOfValue,KeyCompare,A>' being compiled
1> with
1> [
1> Key=AreaKeyType,
1> Value=std::pair<const AreaKeyType,AreaMappedType>,
1> KeyOfValue=boost::container::container_detail::select1st<std::pair<const AreaKeyType,AreaMappedType>>,
1> KeyCompare=std::less<AreaKeyType>,
1> A=AreaShmemAllocator
1> ]
1> c:\dev\boost\boost_1_53_0\boost\type_traits\is_abstract.hpp(72) : see reference to class template instantiation 'boost::container::map<Key,T,Compare,Allocator>' being compiled
1> with
1> [
1> Key=AreaKeyType,
1> T=AreaMappedType,
1> Compare=std::less<AreaKeyType>,
1> Allocator=AreaShmemAllocator
1> ]
1> c:\dev\boost\boost_1_53_0\boost\type_traits\is_abstract.hpp(144) : see reference to class template instantiation 'boost::detail::is_abstract_imp<T>' being compiled
1> with
1> [
1> T=AreaMap
1> ]
1> c:\dev\boost\boost_1_53_0\boost\mpl\aux_\preprocessed\plain\or.hpp(51) : see reference to class template instantiation 'boost::is_abstract<T>' being compiled
1> with
1> [
1> T=AreaMap
1> ]
1> c:\dev\boost\boost_1_53_0\boost\mpl\if.hpp(63) : see reference to class template instantiation 'boost::mpl::or_<T1,T2>' being compiled
1> with
1> [
1> T1=boost::is_abstract<AreaMap>,
1> T2=boost::is_array<AreaMap>
1> ]
1> c:\dev\boost\boost_1_53_0\boost\foreach.hpp(489) : see reference to class template instantiation 'boost::mpl::if_<T1,T2,T3>' being compiled
1> with
1> [
1> T1=boost::mpl::or_<boost::is_abstract<AreaMap>,boost::is_array<AreaMap>>,
1> T2=boost::foreach_detail_::rvalue_probe<AreaMap>::private_type_,
1> T3=AreaMap
1> ]
1> c:\dev\dnp3_driver_2008r2\osdk\libraries\memory20\ed3drvmemory.cpp(229) : see reference to class template instantiation 'boost::foreach_detail_::rvalue_probe<T>' being compiled
1> with
1> [
1> T=AreaMap
1> ]
1>c:\program files (x86)\microsoft visual studio 9.0\vc\include\utility(48) : warning C4503: 'std::pair<_Ty1,_Ty2>::pair' : decorated name length exceeded, name was truncated
1> with
1> [
1>
Could this be fixed? Did I make a rookie mistake?
