1 /* Test for flexible array members. Test for where structures with 2 such members may not occur. */ 3 /* { dg-do compile } */ 4 /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */ 5 6 typedef int T[]; 7 struct flex { int a; T 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-error "invalid use of structure" } */ 17 struct t1 { union rf1 a; }; /* { dg-error "invalid use of structure" } */ 18 struct t2 { union rf2 a; }; /* { dg-error "invalid use of structure" } */ 19 struct t3 { union rf3 a; }; /* { dg-error "invalid use of structure" } */ 20 struct t4 { union rf4 a; }; /* { dg-error "invalid use of structure" } */ 21 22 void f0 (struct flex[]); /* { dg-error "invalid use of structure" } */ 23 void f1 (union rf1[]); /* { dg-error "invalid use of structure" } */ 24 void f2 (union rf2[]); /* { dg-error "invalid use of structure" } */ 25 void f3 (union rf3[]); /* { dg-error "invalid use of structure" } */ 26 void f4 (union rf4[]); /* { dg-error "invalid use of structure" } */ 27 28 struct flex a0[1]; /* { dg-error "invalid use of structure" } */ 29 union rf1 a1[1]; /* { dg-error "invalid use of structure" } */ 30 union rf2 a2[1]; /* { dg-error "invalid use of structure" } */ 31 union rf3 a3[1]; /* { dg-error "invalid use of structure" } */ 32 union rf4 a4[1]; /* { dg-error "invalid use of structure" } */ 33