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go
golang
Commits
ce85868a
Commit
ce85868a
authored
Feb 05, 2010
by
Ken Thompson
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bug in const float divide
R=rsc CC=golang-dev
https://golang.org/cl/204042
parent
072b560e
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1 changed file
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15 additions
and
2 deletions
+15
-2
mparith2.c
src/cmd/gc/mparith2.c
+15
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src/cmd/gc/mparith2.c
View file @
ce85868a
...
...
@@ -618,6 +618,19 @@ mpdivmodfixfix(Mpint *q, Mpint *r, Mpint *n, Mpint *d)
q
->
neg
=
ns
^
ds
;
}
int
iszero
(
Mpint
*
a
)
{
long
*
a1
;
int
i
;
a1
=
&
a
->
a
[
0
]
+
Mpprec
;
for
(
i
=
0
;
i
<
Mpprec
;
i
++
)
{
if
(
*--
a1
!=
0
)
return
0
;
}
return
1
;
}
void
mpdivfract
(
Mpint
*
a
,
Mpint
*
b
)
{
...
...
@@ -632,13 +645,13 @@ mpdivfract(Mpint *a, Mpint *b)
neg
=
n
.
neg
^
d
.
neg
;
n
.
neg
=
0
;
d
.
neg
=
0
;
for
(
i
=
0
;
i
<
Mpprec
;
i
++
)
{
x
=
0
;
for
(
j
=
0
;
j
<
Mpscale
;
j
++
)
{
x
<<=
1
;
if
(
mpcmp
(
&
d
,
&
n
)
<=
0
)
{
x
|=
1
;
if
(
!
iszero
(
&
d
))
x
|=
1
;
mpsubfixfix
(
&
n
,
&
d
);
}
mprsh
(
&
d
);
...
...
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