clang/test/Preprocessor/c99-6_10_3_4_p9.c

   1 // Example from C99 6.10.3.4p9
   2
   3 // RUN: %clang_cc1 -E %s | FileCheck -strict-whitespace %s
   4
   5 #define debug(...) fprintf(stderr, __VA_ARGS__)
   6 #define showlist(...) puts(#__VA_ARGS__)
   7 #define report(test, ...) ((test)?puts(#test):\
   8                            printf(__VA_ARGS__))
   9 debug("Flag");
  10 // CHECK: fprintf(stderr, "Flag");
  11
  12 debug("X = %d\n", x);
  13 // CHECK: fprintf(stderr, "X = %d\n", x);
  14
  15 showlist(The first, second, and third items.);
  16 // CHECK: puts("The first, second, and third items.");
  17
  18 report(x>y, "x is %d but y is %d", x, y);
  19 // CHECK: ((x>y)?puts("x>y"): printf("x is %d but y is %d", x, y));
  20