[Issue 1892] New: min and max work improperly for mixed-sign numbers

[Bill Baxter]

d-bugmail at puremagic.com wrote:
> http://d.puremagic.com/issues/show_bug.cgi?id=1892
> 
>            Summary: min and max work improperly for mixed-sign numbers
>            Product: D
>            Version: unspecified
>           Platform: PC
>         OS/Version: Linux
>             Status: NEW
>           Severity: normal
>           Priority: P2
>          Component: DMD
>         AssignedTo: andrei at metalanguage.com
>         ReportedBy: andrei at metalanguage.com
> 
> 
> (From a post by bearophile.)
> 
> void main() {
>     int a = -10;
>     uint b = 10;
>     writefln( min(a, b) );
> }
> 
> prints 10 as per the infamous "uint rot" that transforms everything touched by
> uint an uint as well.
> 
> Not sure what the right solution is - either (a) fix CommonType to yield no
> common type for int and uint, (b) fix CommonType to yield long for those two,
> (c) leverage the semantics of min to yield int whenever the min of an int an
> uint is taken, (d) something else?
> 
> 


So you *do* still read the newsgroups.  ;-)

--bb