gcc: ptree_utils.hpp:76: warning: comparison is always false due to limited range of data type [-Wtype-limits]

[anonymous]

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)())

[kailoran@…]

C++11-only patch to fix the warning