1// RUN: %clang_cc1 %s -Eonly -verify
2
3// This should not be rejected.
4#ifdef defined
5#endif
6
7
8
9// PR3764
10
11// This should not produce a redefinition warning.
12#define FUNC_LIKE(a) (a)
13#define FUNC_LIKE(a)(a)
14
15// This either.
16#define FUNC_LIKE2(a)\
17(a)
18#define FUNC_LIKE2(a) (a)
19
20// This should.
21#define FUNC_LIKE3(a) ( a)  // expected-note {{previous definition is here}}
22#define FUNC_LIKE3(a) (a) // expected-warning {{'FUNC_LIKE3' macro redefined}}
23
24// RUN: %clang_cc1 -fms-extensions -DMS_EXT %s -Eonly -verify
25#ifndef MS_EXT
26// This should under C99.
27#define FUNC_LIKE4(a,b) (a+b)  // expected-note {{previous definition is here}}
28#define FUNC_LIKE4(x,y) (x+y) // expected-warning {{'FUNC_LIKE4' macro redefined}}
29#else
30// This shouldn't under MS extensions.
31#define FUNC_LIKE4(a,b) (a+b)
32#define FUNC_LIKE4(x,y) (x+y)
33
34// This should.
35#define FUNC_LIKE5(a,b) (a+b) // expected-note {{previous definition is here}}
36#define FUNC_LIKE5(x,y) (y+x) // expected-warning {{'FUNC_LIKE5' macro redefined}}
37#endif
38