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 *-*-* } 16 } */ 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 *-*-* } 18 } */ 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 *-*-* } 20 } */ 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 *-*-* } 22 } */ 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 *-*-* } 24 } */ 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 *-*-* } 27 } */ 29 void f1 (union rf1[]); /* { dg-bogus "warning" "warning in place of error" } */ 30 /* { dg-error "invalid use of structure" "union in array" { target *-*-* } 29 } */ 31 void f2 (union rf2[]); /* { dg-bogus "warning" "warning in place of error" } */ 32 /* { dg-error "invalid use of structure" "union in array" { target *-*-* } 31 } */ 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 *-*-* } 33 } */ 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 *-*-* } 35 } */ 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 *-*-* } 38 } */ 40 union rf1 a1[1]; /* { dg-bogus "warning" "warning in place of error" } */ 41 /* { dg-error "invalid use of structure" "union in array" { target *-*-* } 40 } */ 42 union rf2 a2[1]; /* { dg-bogus "warning" "warning in place of error" } */ 43 /* { dg-error "invalid use of structure" "union in array" { target *-*-* } 42 } */ 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 *-*-* } 44 } */ 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 *-*-* } 46 } */ 48