Re: [Boost-bugs] [Boost C++ Libraries] #8021: gcc: ptree_utils.hpp:76: warning: comparison is always false due to limited range of data type [-Wtype-limits]

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8021: gcc: ptree_utils.hpp:76: warning: comparison is always false due to limited range of data type [-Wtype-limits]
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-07-18 08:36:50

#8021: gcc: ptree_utils.hpp:76: warning: comparison is always false due to limited
range of data type [-Wtype-limits]
-------------------------------+---------------------------
  Reporter:  anonymous         |      Owner:  cornedbee
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  property_tree
   Version:  Boost 1.52.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------------
Description changed by mloskot:

Old description:

> gcc version 4.7.2 (Built by MinGW-builds project) i686-w64-mingw32
>
> yields
>
> boost/property_tree/detail/ptree_utils.hpp: In instantiation of
> 'std::string boost::property_tree::detail::narrow(const Ch*) [with Ch =
> wchar_t; std::string = std::basic_string<char>]':
> boost/property_tree/string_path.hpp:64:36:   required from here
> boost/property_tree/detail/ptree_utils.hpp:76:13: warning: comparison is
> always false due to limited range of data type [-Wtype-limits]
>
> 76: if (*text < 0 || *text > (std::numeric_limits<char>::max)())

New description:

 gcc version 4.7.2 (Built by MinGW-builds project) i686-w64-mingw32

 yields

 {{{
 boost/property_tree/detail/ptree_utils.hpp: In instantiation of
 'std::string boost::property_tree::detail::narrow(const Ch*) [with Ch =
 wchar_t; std::string = std::basic_string<char>]':
 boost/property_tree/string_path.hpp:64:36:   required from here
 boost/property_tree/detail/ptree_utils.hpp:76:13: warning: comparison is
 always false due to limited range of data type [-Wtype-limits]

 76: if (*text < 0 || *text > (std::numeric_limits<char>::max)())
 }}}

--
-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8021#comment:2>
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