gcc/testsuite/gcc.dg/c99-flex-array-3.c

   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 } */