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<     io::ios_width_saver width_saver(os);
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> 
>         const std::streamsize ssize = os.width(0);
>         const size_t mysize = 36 + 2 * showbraces;
> 
>         std::ios_base::fmtflags current_flags = os.flags();
>         std::basic_ios<ch, char_traits>::char_type current_fill = os.fill();
> 
>         if (current_flags & (std::ios_base::right | std::ios_base::internal))
>             for (size_t i = ssize; i > mysize; --i)
>                 os << current_fill;
> 
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> 
>         if (current_flags & (std::ios_base::left))
>             for (size_t i = ssize; i > mysize; --i)
>                 os << current_fill;