rishi/scryer-prolog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Made mod stronger and addressed #675

Browse Source
This commit is contained in:
notoria
2020-08-15 12:45:33 +02:00
parent 79a74038ac
commit daaebc59cb
1 changed files with 109 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/lib/clpz.pl
View File

@@ -4941,7 +4941,7 @@ run_propagator(pmod(X,Y,Z), MState) -->
( { fd_get(X, _, n(XL), _, _) } ->
( (XL - Z) mod Y =\= 0 ->
{ XMin is Z + Y * ((XL - Z) div Y + 1) }
; { XMin is Z + Y * ((XL - Z) div Y) }
; { XMin is XL }
),
{ fd_get(X, XD0, XPs),
domain_remove_smaller_than(XD0, XMin, XD2),
@@ -4993,7 +4993,7 @@ run_propagator(pmodz(X,Y,Z), MState) -->
( nonvar(Z) -> true % Nothing to do.
; nonvar(X) ->
( X =:= 0 -> kill(MState), Z = X
; X > 0 ->
; ( X > 0 ->
( { fd_get(Y, _, n(YL), _, _), YL > X } ->
kill(MState),
Z = X
@@ -5028,35 +5028,36 @@ run_propagator(pmodz(X,Y,Z), MState) -->
% queue_goal(Z in ZMin..0)
; true
)
)
; nonvar(Y) ->
( abs(Y) =:= 1 -> kill(MState), Z = 0
; Y < 0 ->
{ ZMin is Y + 1 },
( { fd_get(X, _, n(XL), n(XU), _), XU =< 0, Y < XL } ->
Z = X
; { ZMin is Y + 1 },
{ fd_get(Z, ZD1, ZPs),
domain_remove_greater_than(ZD1, 0, ZD3),
domain_remove_smaller_than(ZD3, ZMin, ZD5),
fd_put(Z, ZD5, ZPs) }
% queue_goal(Z in ZMin..0)
)
; Y > 0 ->
{ ZMax is Y - 1 },
( { fd_get(X, _, n(XL), n(XU), _), XL >= 0, Y > XU } ->
Z = X
; { ZMax is Y - 1 },
{ fd_get(Z, ZD1, ZPs),
domain_remove_smaller_than(ZD1, 0, ZD3),
domain_remove_greater_than(ZD3, ZMax, ZD5),
fd_put(Z, ZD5, ZPs) }
% queue_goal(Z in 0..ZMax)
),
( { fd_get(X, _, n(XL), n(XU), _), XL >= 0 } ->
{ fd_get(Z, ZD0, ZPs),
domain_remove_greater_than(ZD0, XU, ZD2),
fd_put(Z, ZD2, ZPs) }
% queue_goal(Z #=< XU)
; { fd_get(X, _, n(XL), n(XU), _), XU =< 0 } ->
{ fd_get(Z, ZD0, ZPs),
domain_remove_smaller_than(ZD0, XL, ZD2),
fd_put(Z, ZD2, ZPs) }
% queue_goal(Z #>= XL)
; true
)
)
; ( { fd_get(X, _, n(XL), n(XU), _), XL >= 0,
fd_get(Y, _, n(YL), _, _), XU < YL } ->
Z = X
; { fd_get(X, _, n(XL), n(XU), _), XU =< 0,
fd_get(Y, _, _, n(YU), _), XL > YU } ->
Z = X
; ( { fd_get(X, _, n(XL), n(XU), _), XL >= 0 } ->
{ fd_get(Z, ZD0, ZPs),
domain_remove_greater_than(ZD0, XU, ZD2),
@@ -5107,6 +5108,7 @@ run_propagator(pmodz(X,Y,Z), MState) -->
% * /
; true
)
)
).
run_propagator(pmody(X,Y,Z), MState) -->