1/* RUN: %clang_cc1 -E -verify %s
2 */
3
4/* expected-error@+1 {{macro name missing}} */
5#ifdef
6#endif
7
8/* expected-error@+1 {{macro name must be an identifier}} */
9#ifdef !
10#endif
11
12/* expected-error@+1 {{macro name missing}} */
13#if defined
14#endif
15
16/* PR1936 */
17/* expected-error@+2 {{unterminated function-like macro invocation}} expected-error@+2 {{expected value in expression}} expected-note@+1 {{macro 'f' defined here}} */
18#define f(x) x
19#if f(2
20#endif
21
22int x;
23