digitalmars.D - Re: Safety, undefined behavior, safe, trusted
- Jason House <jason.james.house gmail.com> Nov 05 2009
- Walter Bright <newshound1 digitalmars.com> Nov 05 2009
Walter Bright Wrote:Jason House wrote:I posted in the other thread how casting to immutable/shared can be just as bad. A leaked reference prior to casting to immutable/shared is in effect the same as casting away shared. No matter how you mix thread local and shared, or mutable and immutable, you still have the same undefined behavior
Not undefined, it's just that the compiler can't prove it's defined behavior. Hence, such code would go into a trusted function.
Might not be defined is still undefined as far as safeD is concerned. I'll be happy if you simply list casting to shared and immutable when listing what isn't allowed in safe functions (and not just casting it away.
Nov 05 2009
Jason House wrote:I'll be happy if you simply list casting to shared and immutable when listing what isn't allowed in safe functions (and not just casting it away.
You're right.
Nov 05 2009