Re: [Boost-users] serialization of boolean values hardcoded to '1' and'0'

From: Robert Ramey (ramey_at_[hidden])
Date: 2008-07-11 17:48:03

I don't remember now. Probably to minimize wasted space.
Robert Ramey
Andrew McDonald wrote:
> I was wondering why in the archive library the input and output text
> streams are hardcoded with the boolalpha bit as unset, e.g. (is >>
> std::noboolalpha;)?
>
> Specifically the code is in the directory:
> boost_1_35_0/boost/archive/impl/
>
> In basic_text_iprimitive.ipp
>
> template<class IStream>
> BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
> basic_text_iprimitive<IStream>::basic_text_iprimitive(
>     IStream  &is_,
>     bool no_codecvt
> ) :
>     is(is_),
>     flags_saver(is_),
>     precision_saver(is_),
>     archive_locale(NULL),
>     locale_saver(is_)
> {
>     if(! no_codecvt){
>         archive_locale.reset(
>             add_facet(
>                 std::locale::classic(),
>                 new codecvt_null<BOOST_DEDUCED_TYPENAME
> IStream::char_type>
>             )
>         );
>         is.imbue(* archive_locale);
>     }
>     is >> std::noboolalpha;
> }
>
> and basic_text_oprimitive.ipp
>
> template<class OStream>
> BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
> basic_text_oprimitive<OStream>::basic_text_oprimitive(
>     OStream & os_,
>     bool no_codecvt
> ) :
>     os(os_),
>     flags_saver(os_),
>     precision_saver(os_),
>     archive_locale(NULL),
>     locale_saver(os_)
> {
>     if(! no_codecvt){
>         archive_locale.reset(
>             add_facet(
>                 std::locale::classic(),
>                 new codecvt_null<BOOST_DEDUCED_TYPENAME
> OStream::char_type>
>             )
>         );
>         os.imbue(* archive_locale);
>     }
>     os << std::noboolalpha;
> }
>
>
>
> Andrew McDonald
> Software Engineer
>
> "Zufall ist nur der Ausdruck unserer Unfähigkeit, den Dingen auf
> Grund zu kommen" - Albert Einstein