Re: [Boost-bugs] [Boost C++ Libraries] #5807: Debug build of the program asserts calling iscntrl(c) in boost::spirit::detail::token_printer_debug_for_chars::print(), with c == -127

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5807: Debug build of the program asserts calling iscntrl(c) in boost::spirit::detail::token_printer_debug_for_chars::print(), with c == -127
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-08-23 14:39:47

#5807: Debug build of the program asserts calling iscntrl(c) in
boost::spirit::detail::token_printer_debug_for_chars::print(), with c ==
-127
------------------------------------------------------+---------------------
  Reporter:  Stephen Torri <stephen.torri@…>          |       Owner:  djowel 
      Type:  Bugs                                     |      Status:  new    
 Milestone:  To Be Determined                         |   Component:  spirit 
   Version:  Boost 1.47.0                             |    Severity:  Problem
Resolution:                                           |    Keywords:         
------------------------------------------------------+---------------------

Comment (by anonymous):

 I changed boost/spirit/home/support/attributes.hpp at line 950 to be:

 else if ( c >= 0 && c < 127 && iscntrl(c))
                     o << "\\" << std::oct << static_cast<int>(c);

 I read that the windows api expects that to be a value within the range of
 0x00 - 0x1F or 0x7F despite the fact that the input parameter type for
 that function is a regular integer. The linux api also uses a int. So we
 cannot rely on the type checking to save us here. We have to constrain the
 range of values for 'c' to be within the range of 0 and 126.

 Stephen

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5807#comment:1>
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