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Carl Shapiro
cmucl
Commits
e2a2f1bc
Commit
e2a2f1bc
authored
34 years ago
by
ram
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Fixed a bug in SSET-UNION-OF-DIFFERENCE that prevented the difference from
really happening most of the time.
parent
92eb1327
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compiler/sset.lisp
+6
-5
6 additions, 5 deletions
compiler/sset.lisp
with
6 additions
and
5 deletions
compiler/sset.lisp
+
6
−
5
View file @
e2a2f1bc
...
...
@@ -126,11 +126,11 @@
((
null
el1
)
t
)
(
let
((
num1
(
sset-element-number
(
car
el1
))))
(
loop
(
when
(
null
el2
)
(
return-from
sset-subsetp
nil
))
(
let
((
num2
(
sset-element-number
(
pop
el2
))))
(
when
(
>=
num2
num1
)
(
when
(
>
num2
num1
)
(
return-from
sset-subsetp
nil
))
(
return
))))))))
(
when
(
null
el2
)
(
return-from
sset-subsetp
nil
))
(
let
((
num2
(
sset-element-number
(
pop
el2
))))
(
when
(
>=
num2
num1
)
(
when
(
>
num2
num1
)
(
return-from
sset-subsetp
nil
))
(
return
))))))))
;;; SSet-Equal -- Interface
...
...
@@ -275,6 +275,7 @@
(
when
(
null
el3
)
(
setf
(
cdr
prev-el1
)
(
copy-list
el2
))
(
return-from
sset-union-of-difference
t
))
(
setq
num3
(
sset-element-number
(
car
el3
)))
(
when
(
<=
num2
num3
)
(
unless
(
=
num2
num3
)
(
let
((
new
(
cons
e
el1
)))
...
...
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