potion - Printing odd prime every 100K primes found -

i'm trying make program print every 100k-th odd prime number until 10m using potion, code:

last = 3  res = (last) # create array loop:    last += 2    prime = true     len = res length -1    = 0    while(i<len):       v = res at(i)       if(v*v > last): break.       if(last%v == 0): prime = false, break.       += 1    .    if(prime):           res append(last)           if(res size % 100000 == 0): last print.           if(last>9999999): break.    . . 

but gives segmentation fault (core dumped), wonder what's wrong?

for reference, working ruby version:

res = [last=3] loop     last += 2    prime = true    res.each |v|           break if v*v > last            if last % v == 0          prime = false          break       end    end    if prime      res << last       puts last if res.length % 100000 == 0       break if last > 9999999    end end 

the output should be:

1299721 2750161 4256249 5800139 7368791 8960467 

and no, not homework, out of curiosity.

you found out yourself, great! println called say in potion. , crashed in res size.

e.g. use debbugging: rm config.inc make debug=1 bin/potion -d -dvt example/100thoddprime.pn

and press enter until crash.

(example/100thoddprime.pn:18): res append(last)

> ; (3, 5) [95] getlocal 1 1 ; (3, 5) [96] move 2 1 ; (3, 5) [97] loadk 1 5 ; size [98] bind 1 2 ; function size() [99] loadpn 3 0 ; nil [100] call 1 3segmentation fault

so size on res returned nil, , caused crash.

and instead of last print, "\n" print. last say. came perl6 syntax, sorry :)