[Issue 360] Compile-time floating-point calculations are sometimes inconsistent

[xs0]

Walter Bright wrote:
> Don Clugston wrote:
>> One consequence of that would be in the name mangling for floating 
>> point  constants in templates. Currently it's 20 hex characters, which 
>> only makes sense for a system with 80-bit reals; might be better to 
>> make it 32 hex characters, even if the extra 12 are all '0'.
> 
> I'm reluctant to do that because there are already problems with the 
> mangled names getting too long.

What if you used characters other than A-F to compress the zeros?

G = 2 * '0'
H = 3 * '0'
...
Z = 21 * '0'


xs0