http://d.puremagic.com/issues/show_bug.cgi?id=7542
timon.g...@gmx.ch changed:
What |Removed |Added
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CC| |timon.g...@gmx.ch
--- Comment #2 from timon.g...@gmx.ch 2012-02-19 05:05:58 PST ---
This pull breaks the type system:
void main(){
// conversion from void function(int*) to void function(inout(int)*):
void function(inout(int)*) wfp = function(int*)(*p = 1;}
immutable int x = 0;
wfp(&x); // mutates x
}
The title of the bug report is correct though, contravariance is safe.
Those are the safe conversions:
mfp = wfp; // match inout as mutable
wfp = cfp; // inout is a subtype of const
cfp = wfp; // match inout as const
ifp = wfp; // match inout as immutable
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