Compiled dmd2.032 in VC++ 2009!

[Don]

Walter Bright wrote:
> Jeremie Pelletier wrote:
>> Well I've decided to get a look at the dmd2 source and see what I can
>> contribute to it, only to notice it is very VC++ unfriendly. After a
>> few hours of work, I finally got it to compile, and it works great,
>> for the most part.
> 
> Can you send me the diffs?
> 
>>
>> VC++ has no real support for long double; it supports the syntax as
>> distinct types but they are implemented as double precision, not
>> extended precision.
> 
> There are two routes to go here, one is to just make a D that uses only 
> double precision for real precision, the other is to write a simple 
> emulator for 80 bit reals so the compiler can still generate 80 bit real 
> code despite the shortcomings in VC++.

Actually I think that even DMD should be using a 128-bit emulator for 
internal constants, regardless of the machine precision. That's a way 
off, still, but I think emulator is the way to go, long-term. Likewise, 
the compiler should not depend on NaNs being handled correctly in the 
C++ compiler.