On Sun, 26 May 2013 14:06:39 +0200, Joseph Rushton Wakeling
<joseph.wakel...@webdrake.net> wrote:
On 05/24/2013 04:39 PM, Simen Kjaeraas wrote:
First, *is* it read-only? If so, store it as immutable and enjoy free
sharing. If not, how and why not?
I can confess that it's as simple as feeling extremely uncomfortable
dealing
with immutable where it relates to any kind of complex data structure.
I mean, for that double array structure I'd have to do something like,
Tuple!(size_t, size_t)[][] dataCopy;
foreach(x; data) {
Tuple!(size_t, size_t)[] xCopy;
foreach(y; x) {
immutable(Tuple!(size_t, size_t)) yCopy = y.idup;
xCopy ~= cast(Tuple!(size_t, size_t)) yCopy;
}
immutable xImm = assumeUnique(xCopy);
dataCopy ~= cast(Tuple!(size_t, size_t)[]) xImm;
}
immutable dataImm = assumeUnique(dataCopy);
... no? Which feels like a lot of hassle compared to just being able to
pass
each thread the information to independently load the required data.
I'd be delighted to discover I'm wrong about the hassle of converting
the data
to immutable -- I don't think I understand how to use it at all well, bad
experiences in the past have meant that I've tended to avoid it.
That looks very complex for what it purports to do.
I understand data is the original data before sharing?
If so, will that a
--
Simen
