ceph/src/boost/libs/units/include/boost/units/detail/utility.hpp

   1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
   2 // unit/quantity manipulation and conversion
   3 //
   4 // Copyright (C) 2003-2008 Matthias Christian Schabel
   5 // Copyright (C) 2008 Steven Watanabe
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See
   8 // accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_UNITS_UTILITY_HPP
  12 #define BOOST_UNITS_UTILITY_HPP
  13
  14 #include <typeinfo>
  15 #include <string>
  16 #include <boost/core/demangle.hpp>
  17
  18 namespace boost {
  19
  20 namespace units {
  21
  22 namespace detail {
  23
  24 inline
  25 std::string
  26 demangle(const char* name)
  27 {
  28     std::string demangled = core::demangle(name);
  29
  30     const std::string::size_type prefix_len = sizeof("boost::units::") - 1;
  31     std::string::size_type i = 0;
  32     for (;;)
  33     {
  34         std::string::size_type pos = demangled.find("boost::units::", i, prefix_len);
  35         if (pos == std::string::npos)
  36             break;
  37
  38         demangled.erase(pos, prefix_len);
  39         i = pos;
  40     }
  41
  42     return demangled;
  43 }
  44
  45 } // namespace detail
  46
  47 template<class L>
  48 inline std::string simplify_typename(const L& /*source*/)
  49 {
  50     return detail::demangle(typeid(L).name());
  51 }
  52
  53 } // namespace units
  54
  55 } // namespace boost
  56
  57 #endif // BOOST_UNITS_UTILITY_HPP