[Boost-users] Are Boost.Multi_Index and Boost.Format Planned for 64-bit Portability?

From: Wu Yinghui, Freddie (yhwu_at_[hidden])
Date: 2006-03-15 21:23:34

Hi all,

It's the first time I tried multi_index and format. I have to say that 
they are so powerful that I love them from the beginning!

Nonetheless, when I enabled /Wp64 on my MSVC71 compiler, the headers 
gave me a lot of problems regarding possible pointer truncations (and 
sometimes default c'tor problems). The relevant warnings are something 
like the following:
==== snip <multi_index> =====
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(129) 
: warning C4312: 'type cast' : conversion from 
'boost::multi_index::detail::uintptr_type' to 'void *' of greater size
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(134) 
: warning C4311: 'type cast' : pointer truncation from 'void *' to 
'boost::multi_index::detail::uintptr_type'
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(161) 
: warning C4312: 'type cast' : conversion from 'const 
boost::multi_index::detail::uintptr_type' to 'void *' of greater size
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(509) 
: warning C4610: struct 
'boost::multi_index::detail::ordered_index_node_impl' can never be 
instantiated - user defined constructor required
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(512) 
: warning C4510: 
'boost::multi_index::detail::ordered_index_node_trampoline<Super>' : 
default constructor could not be generated
..\..\..\boost-1.x\include\boost-1_34\boost\multi_index\detail\ord_index_node.hpp(562) 
: warning C4510: 'boost::multi_index::detail::ordered_index_node<Super>' 
: default constructor could not be generated
===== snip =====

===== snip <format> =====
..\..\..\boost-1.x\include\boost-1_34\boost\format\alt_sstream_impl.hpp(110) 
: warning C4244: 'argument' : conversion from 
'boost::io::basic_altstringbuf<Ch,Tr,Alloc>::off_type' to 'int', 
possible loss of data
..\..\..\boost-1.x\include\boost-1_34\boost\format\feed_args.hpp(98) : 
warning C4244: 'argument' : conversion from 'const 
stlpd_std::iterator_traits<_Iterator>::difference_type' to 'int', 
possible loss of data
..\..\..\boost-1.x\include\boost-1_34\boost\format\feed_args.hpp(53) : 
warning C4244: 'argument' : conversion from 'stlpd_std::streamsize' to 
'stlpd_std::basic_string<_CharT,_Traits,_Alloc>::size_type', possible 
loss of data
===== snip =====

So I just wonder if both of these libraries have any plan on considering 
this issue? I really love these libraries, and I want to integrate them 
into our future product. But if the 64-bit portability issues are not 
solved, I'm afraid I'll have some problem pursuading the managers.

Cheers,

Freddie

-- 
Wu Yinghui, Freddie
Research & Development
Software Engineer
Volume Interactions Pte Ltd
1 Kim Seng Promenade, #12-01
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