Size of the real type

[Walter Bright]

"Jarrett Billingsley" <kb3ctd2 at yahoo.com> wrote in message 
news:dupgi5$g9f$2 at digitaldaemon.com...
> Well if the only difference is in the alignment, why isn't just the 
> real.alignof field affected?  An x86-32 real is 80 bits, period.  Or does 
> it have to do with, say, C function name mangling?  So a C function that 
> takes one real in Windows would be _Name at 80 but in Linux it'd be _Name at 96 
> ?

It's 96 bits on linux because gcc on linux pretends that 80 bit reals are 
really 96 bits long. What the alignment is is something different again. 
Name mangling does not drive this, although the "Windows" calling convention 
will have different names as you point out, but that doesn't matter.

96 bit convention permeates linux, and since D must be C ABI compatible with 
the host system's default C compiler, 96 bits it is on linux.

If you're looking for mantissa significant bits, etc., use the various 
.properties of float types.