1  /* Test for multiple declarations and composite types, with built-in
       2     functions.  */
       3  /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
       4  /* { dg-do compile } */
       5  /* { dg-options "-std=c89 -Wformat -g" } */
       6  
       7  void
       8  f (void)
       9  {
      10    int printf;
      11    int strcmp;
      12    {
      13      int printf (const char *, ...);
      14      int strcmp ();
      15      /* Should get format warnings even though the built-in declaration
      16         isn't "visible".  */
      17      printf (
      18  	    "%s", 1); /* { dg-warning "15:format" } */
      19      /* The type of strcmp here should have no prototype.  */
      20      if (0)
      21        strcmp (1);
      22      /* Likewise, implicitly declared memcmp.  */
      23      if (0)
      24        memcmp (1);
      25    }
      26  }
      27  
      28  /* Should still diagnose incompatible prototype for strcmp.  */
      29  int strcmp (void); /* { dg-error "conflict" } */
      30  
      31  /* { dg-prune-output "\\\[-Wbuiltin-declaration-mismatch]" }
      32     { dg-prune-output "\\\[-Wint-conversion]" } */