id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3161	assignment operator could not be generated (string_algo) VC9	divisortheory@…	Pavol Droba	"I get the following warnings in boost/algorithm/string when using boost::to_upper_copy in VC9 Service Pack 2

1>Q:\include\boost\1.39.0\boost/iterator/transform_iterator.hpp(142) : warning C4512: 'boost::transform_iterator<UnaryFunc,Iterator,Reference,Value>' : assignment operator could not be generated
1>        with
1>        [
1>            UnaryFunc=boost::algorithm::detail::to_upperF<char>,
1>            Iterator=std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>,
1>            Reference=boost::use_default,
1>            Value=boost::use_default
1>        ]
1>        Q:\include\boost\1.39.0\boost/algorithm/string/detail/case_conv.hpp(110) : see reference to class template instantiation 'boost::transform_iterator<UnaryFunc,Iterator,Reference,Value>' being compiled
1>        with
1>        [
1>            UnaryFunc=boost::algorithm::detail::to_upperF<char>,
1>            Iterator=std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>,
1>            Reference=boost::use_default,
1>            Value=boost::use_default
1>        ]
1>        Q:\include\boost\1.39.0\boost/algorithm/string/case_conv.hpp(144) : see reference to function template instantiation 'SequenceT boost::algorithm::detail::transform_range_copy<SequenceT,SequenceT,boost::algorithm::detail::to_upperF<CharT>>(const RangeT &,FunctorT)' being compiled
1>        with
1>        [
1>            SequenceT=std::string,
1>            CharT=char,
1>            RangeT=std::string,
1>            FunctorT=boost::algorithm::detail::to_upperF<char>
1>        ]
1>        .\file.cpp(42) : see reference to function template instantiation 'SequenceT boost::algorithm::to_upper_copy<std::string>(const SequenceT &,const std::locale &)' being compiled
1>        with
1>        [
1>            SequenceT=std::string
1>        ]

This happens under 1.39, it seems similar problems were addressed in the same source files in a previous release using BOOST_WORKAROUND, but not applied to the rest of the classes in the files."	Bugs	closed	Boost 1.40.0	string_algo	Boost 1.39.0	Problem	fixed	warning; VC9