Bug 11908 – const(char)[] assigned to immutable(char)[] without error

inout(char)[] todstr(inout(char)* cstr) pure nothrow { return cstr ? cstr[0 .. std.c.string.strlen(cstr)] : cstr[0 .. 0]; } struct Data { char buffer[256] = void; @property const(char)[] filename() const pure nothrow { return todstr(buffer.ptr); } } struct MyThing { private this(in Data* p) { filename = p.filename; // *** Uh oh! assigned a const(char)[] @property to a string! *** } string filename; } The const(char)[] is on the stack, program crashes soon after the assignment.