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