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https://issues.apache.org/jira/browse/STDCXX-321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12543465
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Martin Sebor commented on STDCXX-321:
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I'm not sure #including all of <istream> in <iterator> is a good idea. But see
STDCXX-645.
> error on std::operator==(istream_iterator, istream_iterator)
> ------------------------------------------------------------
>
> Key: STDCXX-321
> URL: https://issues.apache.org/jira/browse/STDCXX-321
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 24. Iterators
> Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2.0
> Environment: All
> Reporter: Martin Sebor
> Fix For: 4.2.1
>
>
> The well-formed program below fails to compile with both EDG eccp 3.8 and gcc
> 4.1.0 (I didn't try others but it's likely a bug in the library)
> $ cat t.cpp && make t
> #include <iterator>
> int main ()
> {
> std::istream_iterator<char, char> i;
> (void)(i == i);
> }
> eccp -c -I/build/sebor/dev/stdlib/include/ansi -D_RWSTDDEBUG
> -D_RWSTD_USE_CONFIG -I/build/sebor/dev/stdlib/include
> -I/build/sebor/eccp-3.8-11s/include -I/build/sebor/dev/stdlib/include/ansi
> -I/build/sebor/PlumHall/lvs06a/conform -I/build/sebor/PlumHall/lvs06a/dst.3
> -A -x --template_directory=/build/sebor/eccp-3.8-11s/lib -g
> --display_error_number --remarks --diag_suppress
> 193,236,340,401,261,479,487,678,679,815 --diag_suppress
> 177,381,191,68,550,611,997,549 t.cpp
> "/build/sebor/dev/stdlib/include/rw/_streamiter.h", line 124: error #349: no
> operator "!" matches these operands
> operand types are: ! std::basic_istream<char,
> std::char_traits<char>>
> return (__x._C_strm && !!*__x._C_strm) == (__y._C_strm &&
> !!*__y._C_strm);
> ^
> detected during instantiation of "bool std::operator==(const
> std::istream_iterator<_TypeT, _CharT, _Traits, _Distance>
> &, const std::istream_iterator<_TypeT, _CharT, _Traits,
> _Distance> &) [with _TypeT=char, _CharT=char,
> _Traits=std::char_traits<char>, _Distance=int]" at line 6
> of "t.cpp"
> "/build/sebor/dev/stdlib/include/rw/_streamiter.h", line 124: error #349: no
> operator "!" matches these operands
> operand types are: ! std::basic_istream<char,
> std::char_traits<char>>
> return (__x._C_strm && !!*__x._C_strm) == (__y._C_strm &&
> !!*__y._C_strm);
> ^
> detected during instantiation of "bool std::operator==(const
> std::istream_iterator<_TypeT, _CharT, _Traits, _Distance>
> &, const std::istream_iterator<_TypeT, _CharT, _Traits,
> _Distance> &) [with _TypeT=char, _CharT=char,
> _Traits=std::char_traits<char>, _Distance=int]" at line 6
> of "t.cpp"
> 2 errors detected in the compilation of "t.cpp".
> make: *** [t.o] Error 2
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