On Wed, 19 Dec 2012 04:49:59 -0600, d coder <[email protected]> wrote:
On Wed, Dec 19, 2012 at 3:43 PM, Iain Buclaw <[email protected]> wrote:
How difficult would you think it would be to scale down (or up) this
library type so it can be an emulated IEEE type of any size? (The whole
shebang eg: quarter, half, single, double, quad, double-quad, 80bit and
96-bit). Just interested as I think that a module which implements an
IEEE floating point type that produces constant results cross-platform
would be better than a dedicated module just for half float types.
+1
See std.numeric.CustomFloat. It supports quarter, half, single, double and
80-bit. The wikipedia article on the floating point (IEEE 754) includes a
Quad type but not a double-quad or 96-bit type. 96-bit Should be possible,
as it's just 80-bits with padding. Quad and double quad would be tougher
to do, do to the lack of a quad integer type or a 112-bit bit shift
operator.
