1  /* Test for diagnostics for duplicate member names in anonymous
       2     structures and unions.  PR 4784.  */
       3  /* { dg-do compile } */
       4  /* { dg-options "" } */
       5  
       6  struct s1
       7  {
       8    int x;
       9    struct
      10    {
      11      int x; /* { dg-error "duplicate member" } */
      12    };
      13  };
      14  
      15  struct s2
      16  {
      17    struct
      18    {
      19      int a;
      20      struct
      21      {
      22        int b;
      23      };
      24    };
      25    struct
      26    {
      27      int b; /* { dg-error "duplicate member" } */
      28    };
      29  };
      30  
      31  struct s3
      32  {
      33    struct
      34    {
      35      int a;
      36      struct
      37      {
      38        int b;
      39      };
      40    };
      41    struct
      42    {
      43      int b; /* { dg-error "duplicate member" } */
      44      int c;
      45    };
      46  };
      47  
      48  struct s4
      49  {
      50    int x;
      51    struct
      52    {
      53      int x;
      54    } y;
      55  };
      56  
      57  union u1
      58  {
      59    int x;
      60    union
      61    {
      62      int x; /* { dg-error "duplicate member" } */
      63    };
      64  };
      65  
      66  union u2
      67  {
      68    union
      69    {
      70      int a;
      71      union
      72      {
      73        int b;
      74      };
      75    };
      76    union
      77    {
      78      int b; /* { dg-error "duplicate member" } */
      79    };
      80  };
      81  
      82  union u3
      83  {
      84    union
      85    {
      86      int a;
      87      union
      88      {
      89        int b;
      90      };
      91    };
      92    union
      93    {
      94      int b; /* { dg-error "duplicate member" } */
      95      int c;
      96    };
      97  };
      98  
      99  union u4
     100  {
     101    int x;
     102    union
     103    {
     104      int x;
     105    } y;
     106  };
     107  
     108  #define D10(x) int x##0; int x##1; int x##2; int x##3; int x##4; int x##5; int x##6; int x##7; int x##8; int x##9;
     109  #define D100(x) D10(x##0) D10(x##1) D10(x##2) D10(x##3) D10(x##4) D10(x##5) D10(x##6) D10(x##7) D10(x##8) D10(x##9)
     110  
     111  #define S10(x) struct { D100(x##0) }; struct { D100(x##1) }; struct { D100(x##2) }; struct { D100(x##3) }; struct { D100(x##4) }; struct { D100(x##5) }; struct { D100(x##6) }; struct { D100(x##7) }; struct { D100(x##8) }; struct { D100(x##9) };
     112  
     113  struct sbig
     114  {
     115    S10(a)
     116    S10(b)
     117    S10(c)
     118    S10(d)
     119    S10(e)
     120    S10(f)
     121    S10(g)
     122    S10(h)
     123    S10(j)
     124    S10(k)
     125    struct
     126    {
     127      int a123; /* { dg-error "duplicate member" } */
     128    };
     129  };