// Example from C99 6.10.3.4p9 // RUN: %clang_cc1 -E %s | FileCheck -strict-whitespace %s #define debug(...) fprintf(stderr, __VA_ARGS__) #define showlist(...) puts(#__VA_ARGS__) #define report(test, ...) ((test)?puts(#test):\ printf(__VA_ARGS__)) debug("Flag"); // CHECK: fprintf(stderr, "Flag"); debug("X = %d\n", x); // CHECK: fprintf(stderr, "X = %d\n", x); showlist(The first, second, and third items.); // CHECK: puts("The first, second, and third items."); report(x>y, "x is %d but y is %d", x, y); // CHECK: ((x>y)?puts("x>y"): printf("x is %d but y is %d", x, y));