1  /* Copyright (C) 2001 Free Software Foundation, Inc.  */
       2  
       3  /* { dg-do compile } */
       4  
       5  /* This tests various diagnostics about character constants, for both
       6     the preprocessor and the compiler.
       7  
       8     Neil Booth, 22 May 2001.  */
       9  
      10  #if ''			/* { dg-error "empty" "empty charconst" } */
      11  #endif
      12  #if L''			/* { dg-error "empty" "empty wide charconst" } */
      13  #endif
      14  #if 'very long'		/* { dg-warning "too long" "long charconst" } */
      15  #endif
      16  #if L'very long'	/* { dg-warning "too long" "long wide charconst" } */
      17  #endif
      18  /* Don't do this test for L'ab'; it depends upon sizeof (wchar_t).  */
      19  #if 'ab'		/* { dg-warning "multi-char" "multi-character" } */
      20  #endif
      21  
      22  void foo ()
      23  {
      24    int c;
      25    __WCHAR_TYPE__ w;
      26  
      27    c = '';		/* { dg-error "empty" "empty charconst" } */
      28    w = L'';		/* { dg-error "empty" "empty wide charconst" } */
      29  
      30    c = 'very long';	/* { dg-warning "too long" "long charconst" } */
      31    w = L'very long';	/* { dg-warning "too long" "long wide charconst" } */
      32  
      33    c = 'ab';		/* { dg-warning "multi-char" "multi-char" } */
      34    /* Wide charconsts cannot contain more than one wide character.  */
      35    w = L'ab';		/* { dg-warning "too long" "multi-char wide" } */
      36  }