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restore old clpz.pl

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This commit is contained in:
Mark Thom
2020-05-16 14:51:04 -06:00
parent 9e0208ec71
commit 204ae377e3
1 changed files with 56 additions and 56 deletions
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112
src/prolog/lib/clpz.pl
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@@ -4676,64 +4676,64 @@ run_propagator(scalar_product_eq(Cs0,Vs0,P0), MState) -->
% X + Y = Z
run_propagator(pplus(X,Y,Z), MState) -->
( nonvar(X) ->
( X =:= 0 -> kill(MState), Y = Z
; Y == Z -> kill(MState), X =:= 0
; nonvar(Y) -> kill(MState), Z is X + Y
; nonvar(Z) -> kill(MState), Y is Z - X
; { fd_get(Z, ZD, ZPs),
fd_get(Y, YD, _),
domain_shift(YD, X, Shifted_YD),
domains_intersection(ZD, Shifted_YD, ZD1) },
fd_put(Z, ZD1, ZPs),
( { fd_get(Y, YD1, YPs) } ->
O is -X,
{ domain_shift(ZD1, O, YD2),
domains_intersection(YD1, YD2, YD3) },
fd_put(Y, YD3, YPs)
; []
)
)
; nonvar(Y) -> run_propagator(pplus(Y,X,Z), MState)
; nonvar(Z) ->
( X == Y -> kill(MState), { even(Z), X is Z // 2 }
; { fd_get(X, XD, _),
fd_get(Y, YD, YPs),
domain_negate(XD, XDN),
domain_shift(XDN, Z, YD1),
domains_intersection(YD, YD1, YD2) },
fd_put(Y, YD2, YPs),
( { fd_get(X, XD1, XPs) } ->
{ domain_negate(YD2, YD2N),
domain_shift(YD2N, Z, XD2),
domains_intersection(XD1, XD2, XD3) },
( nonvar(X) ->
( X =:= 0 -> kill(MState), Y = Z
; Y == Z -> kill(MState), X =:= 0
; nonvar(Y) -> kill(MState), Z is X + Y
; nonvar(Z) -> kill(MState), Y is Z - X
; { fd_get(Z, ZD, ZPs),
fd_get(Y, YD, _),
domain_shift(YD, X, Shifted_YD),
domains_intersection(ZD, Shifted_YD, ZD1) },
fd_put(Z, ZD1, ZPs),
( { fd_get(Y, YD1, YPs) } ->
O is -X,
{ domain_shift(ZD1, O, YD2),
domains_intersection(YD1, YD2, YD3) },
fd_put(Y, YD3, YPs)
; []
)
)
; nonvar(Y) -> run_propagator(pplus(Y,X,Z), MState)
; nonvar(Z) ->
( X == Y -> kill(MState), { even(Z), X is Z // 2 }
; { fd_get(X, XD, _),
fd_get(Y, YD, YPs),
domain_negate(XD, XDN),
domain_shift(XDN, Z, YD1),
domains_intersection(YD, YD1, YD2) },
fd_put(Y, YD2, YPs),
( { fd_get(X, XD1, XPs) } ->
{ domain_negate(YD2, YD2N),
domain_shift(YD2N, Z, XD2),
domains_intersection(XD1, XD2, XD3) },
fd_put(X, XD3, XPs)
; []
)
)
; ( X == Y -> { kill(MState), 2*X #= Z }
; X == Z -> kill(MState), Y = 0
; Y == Z -> kill(MState), X = 0
; { fd_get(X, XD, XL, XU, XPs),
fd_get(Y, _, YL, YU, _),
fd_get(Z, _, ZL, ZU, _),
NXL cis max(XL, ZL-YU),
NXU cis min(XU, ZU-YL) },
; []
)
)
; ( X == Y -> { kill(MState), 2*X #= Z }
; X == Z -> kill(MState), Y = 0
; Y == Z -> kill(MState), X = 0
; { fd_get(X, XD, XL, XU, XPs),
fd_get(Y, _, YL, YU, _),
fd_get(Z, _, ZL, ZU, _),
NXL cis max(XL, ZL-YU),
NXU cis min(XU, ZU-YL) },
update_bounds(X, XD, XPs, XL, XU, NXL, NXU),
( { fd_get(Y, YD2, YL2, YU2, YPs2) } ->
{ NYL cis max(YL2, ZL-NXU),
NYU cis min(YU2, ZU-NXL) },
update_bounds(Y, YD2, YPs2, YL2, YU2, NYL, NYU)
; NYL = n(Y), NYU = n(Y)
),
( { fd_get(Z, ZD2, ZL2, ZU2, ZPs2) } ->
{ NZL cis max(ZL2,NXL+NYL),
NZU cis min(ZU2,NXU+NYU) },
update_bounds(Z, ZD2, ZPs2, ZL2, ZU2, NZL, NZU)
; []
)
)
).
( { fd_get(Y, YD2, YL2, YU2, YPs2) } ->
{ NYL cis max(YL2, ZL-NXU),
NYU cis min(YU2, ZU-NXL) },
update_bounds(Y, YD2, YPs2, YL2, YU2, NYL, NYU)
; NYL = n(Y), NYU = n(Y)
),
( { fd_get(Z, ZD2, ZL2, ZU2, ZPs2) } ->
{ NZL cis max(ZL2,NXL+NYL),
NZU cis min(ZU2,NXU+NYU) },
update_bounds(Z, ZD2, ZPs2, ZL2, ZU2, NZL, NZU)
; []
)
)
).
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