: (counter) ( channel n -- )
[ swap to ] 2keep 1 + (counter) ;
-
+
: counter ( channel -- )
- 2 (counter) ;
+ 2 (counter) ;
: counter-test ( -- n1 n2 n3 )
- <channel> dup [ counter ] curry "Counter" spawn drop
+ <channel> dup [ counter ] curry "Counter" spawn drop
[ from ] keep [ from ] keep from ;
: filter ( send prime recv -- )
#! filters out all those divisible by 'prime',
#! and sends to the 'recv' channel.
[
- from swap dupd mod zero? not [ swap to ] [ 2drop ] if
+ from swap dupd mod zero? not [ swap to ] [ 2drop ] if
] 3keep filter ;
:: (sieve) ( prime c -- )
[ newc p c filter ] "Filter" spawn drop
prime newc (sieve) ;
-: sieve ( prime -- )
+: sieve ( prime -- )
#! Send prime numbers to 'prime' channel
<channel> dup [ counter ] curry "Counter" spawn drop
(sieve) ;
: sieve-test ( -- seq )
<channel> dup [ sieve ] curry "Sieve" spawn drop
- V{ } clone swap
+ V{ } clone swap
[ from swap push ] 2keep
[ from swap push ] 2keep
[ from swap push ] 2keep