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Postings from November 2003
Austin Hastings wrote:
> I'm way not sure about how the vector context result of iteration
structures
> will work. Specifically, what happens when a loop forks a thread, or
passes
> to a parallelized coroutine? There may not actually BE a result. (Of
course,
> in a right-thinking system this will be noted, and replaced by a
placeholder
> object that will "wait" for the result if evaluated.)
Whuh? Tangential at best... The result would be the same as in a
non-vectorized version, just repeated automatically for you.
my @b = for @a -> $_ {
...
}
Should be broadly equivalent to:
my @b = map { ... } @a;
- OR -
# (Apologies for the perl5-isms.)
for @a -> $_ {
push @b: do { ... };
}
If the non-vectorized version has hidden a thread join operation in a
tied or otherwise magical result value, then so too would the vectorized
version. But that's a completely orthogonal feature; unrelated and not
in conflict.
--
Gordon Henriksen
IT Manager
ICLUBcentral Inc.
gordon@iclub.com
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