contract b { struct c { uint [2 ** 253] a; } c d; function e() public view { c storage x = d; x.a[0]; } } // ---- // Warning 3408: (66-69): Variable "d" covers a large part of storage and thus makes collisions likely. Either use mappings or dynamic arrays and allow their size to be increased only in small quantities per transaction. // Warning 2332: (110-111): Type "b.c" covers a large part of storage and thus makes collisions likely. Either use mappings or dynamic arrays and allow their size to be increased only in small quantities per transaction.