ceph/src/boost/boost/convert/detail/char.hpp

   1 // Copyright (c) 2009-2020 Vladimir Batov.
   2 // Use, modification and distribution are subject to the Boost Software License,
   3 // Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
   4
   5 #ifndef BOOST_CONVERT_DETAIL_IS_CHAR_HPP
   6 #define BOOST_CONVERT_DETAIL_IS_CHAR_HPP
   7
   8 #include <boost/convert/detail/config.hpp>
   9 #include <cctype>
  10 #include <cwctype>
  11
  12 namespace boost { namespace cnv
  13 {
  14     using  char_type = char;
  15     using uchar_type = unsigned char;
  16     using wchar_type = wchar_t;
  17
  18     namespace detail
  19     {
  20         template<typename> struct is_char             : std::false_type {};
  21         template<>         struct is_char< char_type> : std:: true_type {};
  22         template<>         struct is_char<wchar_type> : std:: true_type {};
  23     }
  24     template <typename T> struct is_char : detail::is_char<typename boost::remove_const<T>::type> {};
  25
  26     template<typename char_type> inline bool      is_space(char_type);
  27     template<typename char_type> inline char_type to_upper(char_type);
  28
  29     template<> inline bool       is_space ( char_type c) { return bool(std::isspace(static_cast<uchar_type>(c))); }
  30     template<> inline bool       is_space (uchar_type c) { return bool(std::isspace(c)); }
  31     template<> inline bool       is_space (wchar_type c) { return bool(std::iswspace(c)); }
  32     template<> inline  char_type to_upper ( char_type c) { return std::toupper(static_cast<uchar_type>(c)); }
  33     template<> inline uchar_type to_upper (uchar_type c) { return std::toupper(c); }
  34     template<> inline wchar_type to_upper (wchar_type c) { return std::towupper(c); }
  35 }}
  36
  37 #endif // BOOST_CONVERT_DETAIL_IS_CHAR_HPP
  38