external_libraries/boost_endian/libs/integer/test/scoped_enum_emulation_test.cpp

   1 //  scoped_enum_emulation_test.cpp  ----------------------------------------------------//
   2
   3 //  Copyright Beman Dawes, 2009
   4
   5 //  Distributed under the Boost Software License, Version 1.0.
   6 //  See http://www.boost.org/LICENSE_1_0.txt
   7
   8 //  See documentation at http://www.boost.org/libs/utility/scoped_enum_emulation.html
   9
  10 #include <boost/detail/scoped_enum_emulation.hpp>
  11 #include <boost/assert.hpp>
  12
  13 BOOST_SCOPED_ENUM_START(traffic_light) { red=0, yellow, green }; BOOST_SCOPED_ENUM_END
  14
  15 BOOST_SCOPED_ENUM_START(algae) { green=0, red, cyan }; BOOST_SCOPED_ENUM_END
  16
  17 struct color
  18 {
  19   BOOST_SCOPED_ENUM_START(value_t) { red, green, blue }; BOOST_SCOPED_ENUM_END
  20   BOOST_SCOPED_ENUM(value_t) value;
  21 };
  22
  23 void foo( BOOST_SCOPED_ENUM(algae) arg )
  24 {
  25   BOOST_ASSERT( arg == algae::cyan );
  26 }
  27
  28 int main()
  29 {
  30   BOOST_SCOPED_ENUM(traffic_light) signal( traffic_light::red );
  31   BOOST_SCOPED_ENUM(algae) sample( algae::red );
  32
  33   BOOST_ASSERT( signal == traffic_light::red );
  34   BOOST_ASSERT( sample == algae::red );
  35
  36   foo( algae::cyan );
  37
  38   color tracker;
  39   tracker.value = color::value_t::blue;
  40
  41   return 0;
  42 }