1  /* Copyright (C) 2000 Free Software Foundation, Inc.  */
       2  
       3  /* { dg-do preprocess } */
       4  
       5  /* Tests expansion of macros whilst skipping false conditionals.  */
       6  
       7  /* Source: Neil Booth, 29 Oct 2000.  */
       8  
       9  #define F()
      10  #define TRUE 1
      11  
      12  #if 0
      13  F(			/* No diagnostic: don't even try to expand it.  */
      14  #endif
      15  
      16  #if 0
      17  #elif TRUE		/* Expand this, even though we were skipping.  */
      18  #else
      19  #error Macros not expanded in #elif
      20  #endif
      21  
      22  /* Check we don't warn about bad identifiers when skipping.  */
      23  #if 0
      24  #define foo __VA_ARGS__	/* { dg-bogus "warned about identifier" } */
      25  #endif