1  /* A redefinition of an empty struct should be diagnosed the same as a
       2     redefinition of any other tag, but formerly only s2 and s4 were
       3     diagnosed.  Bug 17188.  */
       4  /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
       5  /* { dg-do compile } */
       6  /* { dg-options "" } */
       7  
       8  struct s0 { }; /* { dg-message "note: originally defined here" } */
       9  struct s0;
      10  struct s0 { }; /* { dg-error "redefinition of 'struct s0'" } */
      11  
      12  struct s1 { }; /* { dg-message "note: originally defined here" } */
      13  struct s1 { }; /* { dg-error "redefinition of 'struct s1'" } */
      14  
      15  struct s2 { int a : 1; }; /* { dg-message "note: originally defined here" } */
      16  struct s2 { int a : 1; }; /* { dg-error "redefinition of 'struct s2'" } */
      17  
      18  struct s3 { }; /* { dg-message "note: originally defined here" } */
      19  struct s3 { int a : 1; }; /* { dg-error "redefinition of 'struct s3'" } */
      20  
      21  struct s4 { int a : 1; }; /* { dg-message "note: originally defined here" } */
      22  struct s4 { }; /* { dg-error "redefinition of 'struct s4'" } */
      23  
      24  struct s5 { int a : 1; };
      25  struct s5;
      26  
      27  struct s6;
      28  struct s6 { int a : 1; };
      29  
      30  struct s7;
      31  struct s7 { };