| 1 | /*============================================================================= |
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| 2 | Boost.Wave: A Standard compliant C++ preprocessor library |
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| 3 | http://www.boost.org/ |
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| 4 | |
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| 5 | Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost |
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| 6 | Software License, Version 1.0. (See accompanying file |
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| 7 | LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 8 | =============================================================================*/ |
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| 9 | |
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| 10 | // Tests simple expression arithmetics |
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| 11 | |
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| 12 | # define CAT(a, b) PRIMITIVE_CAT(a, b) |
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| 13 | # define PRIMITIVE_CAT(a, b) a ## b |
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| 14 | |
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| 15 | # define OFFSET(n) OFFSET_ ## n |
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| 16 | |
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| 17 | # define OFFSET_1 OFFSET_2 % 10 |
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| 18 | # define OFFSET_2 OFFSET_3 % 100 |
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| 19 | # define OFFSET_3 OFFSET_4 % 1000 |
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| 20 | # define OFFSET_4 |
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| 21 | |
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| 22 | # define FACTOR(n) FACTOR_ ## n |
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| 23 | |
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| 24 | # define FACTOR_1 / 1 |
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| 25 | # define FACTOR_2 CAT(FACTOR_1, 0) |
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| 26 | # define FACTOR_3 CAT(FACTOR_2, 0) |
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| 27 | # define FACTOR_4 CAT(FACTOR_3, 0) |
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| 28 | |
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| 29 | # define DIGIT(n) OFFSET(n) FACTOR(n) |
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| 30 | |
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| 31 | # define x 987 |
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| 32 | |
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| 33 | # if (x) DIGIT(3) == 0 |
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| 34 | # define D3 0 |
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| 35 | # elif (x) DIGIT(3) == 1 |
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| 36 | # define D3 1 |
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| 37 | # elif (x) DIGIT(3) == 2 |
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| 38 | # define D3 2 |
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| 39 | # elif (x) DIGIT(3) == 3 |
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| 40 | # define D3 3 |
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| 41 | # elif (x) DIGIT(3) == 4 |
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| 42 | # define D3 4 |
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| 43 | # elif (x) DIGIT(3) == 5 |
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| 44 | # define D3 5 |
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| 45 | # elif (x) DIGIT(3) == 6 |
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| 46 | # define D3 6 |
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| 47 | # elif (x) DIGIT(3) == 7 |
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| 48 | # define D3 7 |
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| 49 | # elif (x) DIGIT(3) == 8 |
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| 50 | # define D3 8 |
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| 51 | # elif (x) DIGIT(3) == 9 |
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| 52 | # define D3 9 |
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| 53 | # endif |
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| 54 | |
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| 55 | # if (x) DIGIT(2) == 0 |
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| 56 | # define D2 0 |
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| 57 | # elif (x) DIGIT(2) == 1 |
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| 58 | # define D2 1 |
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| 59 | # elif (x) DIGIT(2) == 2 |
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| 60 | # define D2 2 |
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| 61 | # elif (x) DIGIT(2) == 3 |
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| 62 | # define D2 3 |
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| 63 | # elif (x) DIGIT(2) == 4 |
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| 64 | # define D2 4 |
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| 65 | # elif (x) DIGIT(2) == 5 |
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| 66 | # define D2 5 |
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| 67 | # elif (x) DIGIT(2) == 6 |
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| 68 | # define D2 6 |
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| 69 | # elif (x) DIGIT(2) == 7 |
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| 70 | # define D2 7 |
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| 71 | # elif (x) DIGIT(2) == 8 |
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| 72 | # define D2 8 |
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| 73 | # elif (x) DIGIT(2) == 9 |
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| 74 | # define D2 9 |
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| 75 | # endif |
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| 76 | |
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| 77 | # if (x) DIGIT(1) == 0 |
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| 78 | # define D1 0 |
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| 79 | # elif (x) DIGIT(1) == 1 |
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| 80 | # define D1 1 |
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| 81 | # elif (x) DIGIT(1) == 2 |
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| 82 | # define D1 2 |
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| 83 | # elif (x) DIGIT(1) == 3 |
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| 84 | # define D1 3 |
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| 85 | # elif (x) DIGIT(1) == 4 |
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| 86 | # define D1 4 |
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| 87 | # elif (x) DIGIT(1) == 5 |
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| 88 | # define D1 5 |
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| 89 | # elif (x) DIGIT(1) == 6 |
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| 90 | # define D1 6 |
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| 91 | # elif (x) DIGIT(1) == 7 |
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| 92 | # define D1 7 |
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| 93 | # elif (x) DIGIT(1) == 8 |
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| 94 | # define D1 8 |
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| 95 | # elif (x) DIGIT(1) == 9 |
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| 96 | # define D1 9 |
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| 97 | # endif |
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| 98 | |
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| 99 | //R #line 100 "t_4_003.cpp" |
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| 100 | D3 D2 D1 //R 9 8 7 |
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| 101 | |
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