On 14-03-2012 17:49, Jonathan M Davis wrote:
On Wednesday, March 14, 2012 10:57:03 Manu wrote:
On 14 March 2012 02:37, Alex Rønne Petersen<xtzgzo...@gmail.com> wrote:
On 14-03-2012 01:34, Paul D. Anderson wrote:
The D language specifies 128-bit integers: cent and ucent. They just
aren't implemented yet...
Why aren't they implemented in a library for the time being at least, so
code can compile and work?
I believe that what it really comes down to is that cent and ucent were set
aside just in case they would be needed with no specific plans to do anything
with them. So, they'll probably be implemented eventually, but they're
definitely not a priority. And if you really need larger integers, then there's
BigInt. Prior to the 64-bit ports of dmd (which are fairly recent), dmd wasn't
even on any architectures that supported 128 bit integers anyway.
- Jonathan M Davis
There aren't really any platforms that natively support 128-bit
integers, even today. The most "support" you'll get is SIMD-like
extensions, but those aren't necessarily useful for implementing 128-bit
integers.
So, most likely, the compiler would just have to unroll 128-bit
operations just as it does for 64-bit operations on 32-bit targets.
--
- Alex
