John Fine <johnsfine@xxxxxxxxxxx> writes: > I tried > DAT __attribute__((__may_alias__))* pp=foo(); > and > DAT* __attribute__((__may_alias__)) pp=foo(); > but neither of those make any difference. The may_alias attribute is normally applied to a type, not a variable. It is possible that the attribute got dropped somewhere during optimization. That would be a bug, but I expect that this case is not well tested. I know you said that you didn't want to use a union, but that is what I would recommend. Using a union need not have any performance impact. Ian
