Re: [Boost-users] [Boost.LexicalCast] problem with 1.59 in Solaris

Subject: Re: [Boost-users] [Boost.LexicalCast] problem with 1.59 in Solaris
From: Piotr Kowalski (koval.gnu_at_[hidden])
Date: 2015-12-22 14:01:35

Are you using solaris studio 12.3 or older?
Before version 12.4 there was a bug where partial specialization for
templates with same name but in different namespaces (basic_string in std::
and boost::container:: in this case) was considered ambiguous.

A workaround for this problem (I would recommend using solaris studio 12.4)
can be found here: https://community.oracle.com/thread/3706125

2015-12-22 19:31 GMT+01:00 <dariomt_at_[hidden]>:

> Trying to compile file libs/date_time/src/gregorian/greg_month.cpp I get
> an error related to Boost.LexicalCast.
>
> I have reduced the problem to a minimal test case:
>
> #include <string>
> #include <boost/lexical_cast.hpp>
>
> void f(const char* s)
> {
>     std::string s1(boost::lexical_cast<std::string>(s));
> }
>
> My feeling is that this compiler has problems in the specializations for
> boost::detail::is_stdstring and boost::detail::is_char_array_to_stdstring.
>
> If I remove all those specializations the error goes away. I assume this
> is not the perfect solution because I guess this will miss some
> optimization of lexical_cast, but at least I can compile it this way  :(
>
> Is there a better solution for this?
> Has this problem been fixed in 1.60?
>
>
> Error message (full instantiation stack available if needed):
>
> "/ThirdPartyLibs/boost/1_59_0/boost/lexical_cast/try_lexical_convert.hpp",
> line 146: Error: Ambiguous partial specialization for
> boost::detail::is_char_array_to_stdstring<std::string, const char*>,
> boost::detail::is_char_array_to_stdstring<boost::container::basic_string<boost::detail::CharT,
> boost::detail::Traits, boost::detail::Alloc>, const boost::detail::CharT*>
> and
> boost::detail::is_char_array_to_stdstring<std::basic_string<boost::detail::CharT,
> boost::detail::Traits, boost::detail::Alloc>, const boost::detail::CharT*>.
> "/ThirdPartyLibs/boost/1_59_0/boost/lexical_cast.hpp", line 42:     Where:
> While instantiating
> "boost::conversion::detail::try_lexical_convert<std::string, const
> char*>(const char*const&, std::string &)".
>
>
> "/ThirdPartyLibs/boost/1_59_0/boost/lexical_cast/try_lexical_convert.hpp",
> line 134: Error: Ambiguous partial specialization for
> boost::detail::is_stdstring<std::string>,
> boost::detail::is_stdstring<boost::container::basic_string<boost::detail::CharT,
> boost::detail::Traits, boost::detail::Alloc>> and
> boost::detail::is_stdstring<std::basic_string<boost::detail::CharT,
> boost::detail::Traits, boost::detail::Alloc>>.
> "/ThirdPartyLibs/boost/1_59_0/boost/lexical_cast.hpp", line 42:     Where:
> While instantiating
> "boost::conversion::detail::try_lexical_convert<std::string, const
> char*>(const char*const&, std::string &)".
>
>
>
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>