| 1 | // Example from C99 6.10.3.4p6 |
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| 2 | |
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| 3 | // RUN: %clang_cc1 -E %s | FileCheck -strict-whitespace %s |
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| 4 | |
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| 5 | #define str(s) # s |
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| 6 | #define xstr(s) str(s) |
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| 7 | #define debug(s, t) printf("x" # s "= %d, x" # t "= s" \ |
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| 8 | x ## s, x ## t) |
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| 9 | #define INCFILE(n) vers ## n |
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| 10 | #define glue(a, b) a ## b |
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| 11 | #define xglue(a, b) glue(a, b) |
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| 12 | #define HIGHLOW "hello" |
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| 13 | #define LOW LOW ", world" |
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| 14 | debug(1, 2); |
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| 15 | fputs(str(strncmp("abc\0d" "abc", '\4') // this goes away |
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| 16 | == 0) str(: @\n), s); |
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| 17 | include xstr(INCFILE(2).h) |
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| 18 | glue(HIGH, LOW); |
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| 19 | xglue(HIGH, LOW) |
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| 20 | |
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| 21 | |
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| 22 | // CHECK: printf("x" "1" "= %d, x" "2" "= s" x1, x2); |
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| 23 | // CHECK: fputs("strncmp(\"abc\\0d\" \"abc\", '\\4') == 0" ": @\n", s); |
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| 24 | // CHECK: include "vers2.h" |
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| 25 | // CHECK: "hello"; |
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| 26 | // CHECK: "hello" ", world" |
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| 27 | |
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| 28 | |
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