contract C { struct S { bool f; } S s; function f(bool flag) internal view { S storage c; flag ? (c = s).f : false; c; } function g(bool flag) internal view { S storage c; flag ? false : (c = s).f; c; } } // ---- // TypeError: (152-153): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour. // TypeError: (266-267): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.