clang/test/Preprocessor/c99-6_10_3_4_p6.c

   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