Thank you for your comment.
But I want to ask some further question.
In an union, how compiler determines one member is an alias to others or not? Is there any rule?
I expect it ALWAYS assumes members are aliased - since storing different forms of data aliased is the exact purpose of unions.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.