Port to SWI Prolog 6

[flowma]

Apparently, PrechacThis does not run on the current version 6 of SWI-Prolog. That means no installation the desktop, no cross compiling.

[flowma]

Engine seams to work

swipl siteswap_engine.pl
?- siteswap(3, 9, 4, 1, 2, [A,B,C,D]).
A = p(8 rdiv 3, 2, 4),
B = p(4 rdiv 3, 1, 4),
C = D, D = p(4, 0, 4)

[imccoy]

It might be worth taking another slightly-closer look. I've just tracked down a bug in the android version where patterns weren't being rotated correctly. The siteswap/14 predicate was returning both 42p11p and 2p11p4 (for example). It was because is_biggest compares the result of compare/3 with the atoms 'lt' and 'gt', but compare/3 actually produces the atoms '<' and '>'. Changing the test "Order = lt" to "Order = <" (and similarly for gt) got all the rotations to work correctly (I hope).

[havarpan]

just got this codebase to work here with swi-prolog 9.2.1 on ubuntu... or maybe it works... at least it seems to work on first sight

[jjochen]

Nice 🎉
Found one issue when pressing the back to results link on the details page.

[havarpan]

yeah i found it too... just commented out the link haha... but i'll cleanup a bit and publish the updated codebase next week... only one patch in there... the dcg_whitespace didn't work properly

[havarpan]

done