Re: [Boost-bugs] [Boost C++ Libraries] #6160: support for (istream >> array < char >)

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6160: support for (istream >> array < char >)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-11-28 17:08:26

#6160: support for (istream >> array < char >)
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  Reporter:  giecrilj@…             |       Owner:  marshall
      Type:  Feature Requests       |      Status:  assigned
 Milestone:  To Be Determined       |   Component:  array   
   Version:  Boost 1.44.0           |    Severity:  Cosmetic
Resolution:                         |    Keywords:          
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Comment (by ne01026@…):

 Replying to [comment:8 marshall]:
 > Replying to [comment:7 ne01026@…]:
 > > Replying to [comment:6 marshall]:
 > > > Replying to [comment:4 ne01026@…]:
 > > > > `char []` has unknown length, `array < char >` has known length,
 therefore `>> array` is safer than `>> char []`, and my code, attached,
 q.v., uses this information to prevent buffer overflow.
 > > >
 > > > `char []` has known length - sizeof is your friend here.
 > >
 > > `sizeof (char [])` is undefined.
 >
 > Sorry - I was imprecise: char [N] has size N for all N > 0

 Unfortunately, the standard library does not provide `istream >> char (&)
 [N]` as some older compilers are unable to match against such a template,
 so the best we can do is to define this thing for array.

 > BTW - if this were to become part of boost, it would be more
 complicated. You should be able to extract from std::wcin to a
 boost::array<wchar_t>, for example.

 I already do, that is why the code is so ugly :-(

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6160#comment:9>
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