1// RUN: %clang_cc1 %s -E | FileCheck -strict-whitespace %s
2// Check for C99 6.10.3.4p2.
3
4#define f(a) f(x * (a))
5#define x 2
6#define z z[0]
7f(f(z));
8// CHECK: f(2 * (f(2 * (z[0]))));
9
10
11
12#define A A B C
13#define B B C A
14#define C C A B
15A
16// CHECK: A B C A B A C A B C A
17
18
19// PR1820
20#define i(x) h(x
21#define h(x) x(void)
22extern int i(i));
23// CHECK: int i(void)
24
25
26#define M_0(x) M_ ## x
27#define M_1(x) x + M_0(0)
28#define M_2(x) x + M_1(1)
29#define M_3(x) x + M_2(2)
30#define M_4(x) x + M_3(3)
31#define M_5(x) x + M_4(4)
32
33a: M_0(1)(2)(3)(4)(5);
34b: M_0(5)(4)(3)(2)(1);
35
36// CHECK: a: 2 + M_0(3)(4)(5);
37// CHECK: b: 4 + 4 + 3 + 2 + 1 + M_0(3)(2)(1);
38
39#define n(v) v
40#define l m
41#define m l a
42c: n(m) X
43// CHECK: c: m a X
44