1  /* Test for flexible array members.  Test for where structures with
       2     such members may not occur.  */
       3  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
       4  /* { dg-do compile } */
       5  /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
       6  
       7  struct flex { int a; int b[]; };
       8  union rf1 { struct flex a; int b; };
       9  union rf2 { int a; struct flex b; };
      10  union rf3 { int a; union rf1 b; };
      11  union rf4 { union rf2 a; int b; };
      12  
      13  /* The above structure and unions may not be members of structures or
      14     elements of arrays (6.7.2.1#2).  */
      15  
      16  struct t0 { struct flex a; }; /* { dg-bogus "warning" "warning in place of error" } */
      17  /* { dg-error "invalid use of structure" "struct in struct" { target *-*-* } .-1 } */
      18  struct t1 { union rf1 a; }; /* { dg-bogus "warning" "warning in place of error" } */
      19  /* { dg-error "invalid use of structure" "union in struct" { target *-*-* } .-1 } */
      20  struct t2 { union rf2 a; }; /* { dg-bogus "warning" "warning in place of error" } */
      21  /* { dg-error "invalid use of structure" "union in struct" { target *-*-* } .-1 } */
      22  struct t3 { union rf3 a; }; /* { dg-bogus "warning" "warning in place of error" } */
      23  /* { dg-error "invalid use of structure" "recursive union in struct" { target *-*-* } .-1 } */
      24  struct t4 { union rf4 a; }; /* { dg-bogus "warning" "warning in place of error" } */
      25  /* { dg-error "invalid use of structure" "recursive union in struct" { target *-*-* } .-1 } */
      26  
      27  void f0 (struct flex[]); /* { dg-bogus "warning" "warning in place of error" } */
      28  /* { dg-error "invalid use of structure" "struct in array" { target *-*-* } .-1 } */
      29  void f1 (union rf1[]); /* { dg-bogus "warning" "warning in place of error" } */
      30  /* { dg-error "invalid use of structure" "union in array" { target *-*-* } .-1 } */
      31  void f2 (union rf2[]); /* { dg-bogus "warning" "warning in place of error" } */
      32  /* { dg-error "invalid use of structure" "union in array" { target *-*-* } .-1 } */
      33  void f3 (union rf3[]); /* { dg-bogus "warning" "warning in place of error" } */
      34  /* { dg-error "invalid use of structure" "recursive union in array" { target *-*-* } .-1 } */
      35  void f4 (union rf4[]); /* { dg-bogus "warning" "warning in place of error" } */
      36  /* { dg-error "invalid use of structure" "recursive union in array" { target *-*-* } .-1 } */
      37  
      38  struct flex a0[1]; /* { dg-bogus "warning" "warning in place of error" } */
      39  /* { dg-error "invalid use of structure" "struct in array" { target *-*-* } .-1 } */
      40  union rf1 a1[1]; /* { dg-bogus "warning" "warning in place of error" } */
      41  /* { dg-error "invalid use of structure" "union in array" { target *-*-* } .-1 } */
      42  union rf2 a2[1]; /* { dg-bogus "warning" "warning in place of error" } */
      43  /* { dg-error "invalid use of structure" "union in array" { target *-*-* } .-1 } */
      44  union rf3 a3[1]; /* { dg-bogus "warning" "warning in place of error" } */
      45  /* { dg-error "invalid use of structure" "recursive union in array" { target *-*-* } .-1 } */
      46  union rf4 a4[1]; /* { dg-bogus "warning" "warning in place of error" } */
      47  /* { dg-error "invalid use of structure" "recursive union in array" { target *-*-* } .-1 } */