'int' is enough for 'length' to migrate code from x86 to x64

ketmar via Digitalmars-d digitalmars-d at puremagic.com
Fri Nov 21 07:13:12 PST 2014


On Fri, 21 Nov 2014 14:55:45 +0000
FrankLike via Digitalmars-d <digitalmars-d at puremagic.com> wrote:

> On Friday, 21 November 2014 at 13:59:08 UTC, ketmar via 
> Digitalmars-d wrote:
> 
> > any code which does something like `if (a-b < 0)` is broken. it
> 
> Modify it: 
> https://github.com/D-Programming-Language/druntime/blob/master/src/core/checkedint.d
> 
> Modify method: subu(uint ...) or subu(ulong ...)
> if(x<y)
> return y -x ;
> else
>   return x -y;
> 
> It will be not broken.
and it will not do the same anymore too. it's not a fix at all.
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