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 16:15:57

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

Comment (by 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.

 I see where your code is using the length to prevent a buffer overflow -
 but doing that at every stream extraction is error-prone, at best. It
 seems to me that (famous last words) that if this were to be implemented,
 it should never overflow the bounds of the array.

 Do you know if this was considered for std::array?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6160#comment:6>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.