[PD-dev] Tabread/write on array bigger than 16777216 points

[Nicolas Montgermont]

Hello all,

I want to develop a serie of externals that allow to use tables bigger 
than 2^24 points. After a few missed attempt (redefining PDFLOATTYPE, 
using double inside the objects...) i think i have managed two working 
externals [tabread_double] and [tabwrite_double] that use two float to 
point an integer : n = f1 + 2^24*f2.

Before going further (tabread~, tabread4,...) I wanted to know if 
someone has already done something similar or if you have advices on 
names and behavior.
I've chosen to have compatibility with existing object, simply adding 
one inlet on the right that set f2.

If it's the first serie of external for that i'll try to add that on the 
svn in a few weeks.
best,
n
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