clang/test/Preprocessor/ifdef-recover.c

   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
  22 /* expected-error@+3 {{macro name missing}} */
  23 /* expected-warning@+2 {{use of a '#elifdef' directive is a C23 extension}} */
  24 #ifdef FOO
  25 #elifdef
  26 #endif
  27
  28 /* expected-error@+3 {{macro name must be an identifier}} */
  29 /* expected-warning@+2 {{use of a '#elifdef' directive is a C23 extension}} */
  30 #ifdef FOO
  31 #elifdef !
  32 #endif
  33
  34 int x;