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"
14debug(1, 2);
15fputs(str(strncmp("abc\0d" "abc", '\4') // this goes away
16          == 0) str(: @\n), s);
17include xstr(INCFILE(2).h)
18glue(HIGH, LOW);
19xglue(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