[Boost-bugs] [Boost C++ Libraries] #1227: Original/Signed/Unsigned Integer Variant Selection Templates

Subject: [Boost-bugs] [Boost C++ Libraries] #1227: Original/Signed/Unsigned Integer Variant Selection Templates
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-09-02 20:06:25

#1227: Original/Signed/Unsigned Integer Variant Selection Templates
------------------------------+---------------------------------------------
 Reporter:  dlwalker          |       Owner:  dlwalker      
     Type:  Feature Requests  |      Status:  new           
Milestone:  To Be Determined  |   Component:  integer       
  Version:                    |    Severity:  Not Applicable
 Keywords:                    |  
------------------------------+---------------------------------------------
 Add new integer selection templates to "boost/integer.hpp" for
   *  The underlying type for a given integral type.  This could be called
 `underlying` and would map
     *  `char` to whichever of {`signed char`, `unsigned char`} that shares
 the same values (section 3.9.1, paragraph 1 of the 2003 C++ standard)
     *  `wchar_t` to its underlying type (paragraph 5 of the same part of
 the standard)
     *  any other type to itself (This includes `bool` because it could be
 implemented distinctly from any other integral type.)
     *  (Someday: extend this to find the underlying type of an
 enumeration)
   *  Find the unsigned equivalent of a given signed integral type, like
 the `get_unsigned` examples at
 source:/tags/Version_1_34_1/boost/boost/typeof/int_encoding.hpp and
 source:/tags/Version_1_34_1/boost/boost/wave/util/flex_string.hpp
   *  Find the signed equivalent of a given unsigned integral type, as a
 dual to the previous point (for both templates, non-matching types return
 themselves)

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Ticket URL: <http://svn.boost.org/trac/boost/ticket/1227>
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