text: /*=============================================================================
      Boost.Wave: A Standard compliant C++ preprocessor library
      http://www.boost.org/
  
      Copyright (c) 2001-2005 Hartmut Kaiser. Distributed under the Boost
      Software License, Version 1.0. (See accompanying file
      LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  =============================================================================*/
  
  // Tests simple expression arithmetics
  
  # define CAT(a, b) PRIMITIVE_CAT(a, b)
  # define PRIMITIVE_CAT(a, b) a ## b
  
  # define OFFSET(n) OFFSET_ ## n
  
  # define OFFSET_1 OFFSET_2 % 10
  # define OFFSET_2 OFFSET_3 % 100
  # define OFFSET_3 OFFSET_4 % 1000
  # define OFFSET_4
  
  # define FACTOR(n) FACTOR_ ## n
  
  # define FACTOR_1 / 1
  # define FACTOR_2 CAT(FACTOR_1, 0)
  # define FACTOR_3 CAT(FACTOR_2, 0)
  # define FACTOR_4 CAT(FACTOR_3, 0)
  
  # define DIGIT(n) OFFSET(n) FACTOR(n)
  
  # define x 987
  
  # if (x) DIGIT(3) == 0
  #    define D3 0
  # elif (x) DIGIT(3) == 1
  #    define D3 1
  # elif (x) DIGIT(3) == 2
  #    define D3 2
  # elif (x) DIGIT(3) == 3
  #    define D3 3
  # elif (x) DIGIT(3) == 4
  #    define D3 4
  # elif (x) DIGIT(3) == 5
  #    define D3 5
  # elif (x) DIGIT(3) == 6
  #    define D3 6
  # elif (x) DIGIT(3) == 7
  #    define D3 7
  # elif (x) DIGIT(3) == 8
  #    define D3 8
  # elif (x) DIGIT(3) == 9
  #    define D3 9
  # endif
  
  # if (x) DIGIT(2) == 0
  #    define D2 0
  # elif (x) DIGIT(2) == 1
  #    define D2 1
  # elif (x) DIGIT(2) == 2
  #    define D2 2
  # elif (x) DIGIT(2) == 3
  #    define D2 3
  # elif (x) DIGIT(2) == 4
  #    define D2 4
  # elif (x) DIGIT(2) == 5
  #    define D2 5
  # elif (x) DIGIT(2) == 6
  #    define D2 6
  # elif (x) DIGIT(2) == 7
  #    define D2 7
  # elif (x) DIGIT(2) == 8
  #    define D2 8
  # elif (x) DIGIT(2) == 9
  #    define D2 9
  # endif
  
  # if (x) DIGIT(1) == 0
  #    define D1 0
  # elif (x) DIGIT(1) == 1
  #    define D1 1
  # elif (x) DIGIT(1) == 2
  #    define D1 2
  # elif (x) DIGIT(1) == 3
  #    define D1 3
  # elif (x) DIGIT(1) == 4
  #    define D1 4
  # elif (x) DIGIT(1) == 5
  #    define D1 5
  # elif (x) DIGIT(1) == 6
  #    define D1 6
  # elif (x) DIGIT(1) == 7
  #    define D1 7
  # elif (x) DIGIT(1) == 8
  #    define D1 8
  # elif (x) DIGIT(1) == 9
  #    define D1 9
  # endif
  
  //R #line 100 "t_4_003.cpp"
  D3 D2 D1      //R 9 8 7 
  