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src
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lib9
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nrand.c
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#include
<lib9.h>
#define
MASK
0x7fffffffL
int
nrand
(
int
n
)
{
long
slop
,
v
;
if
(
n
<
0
)
return
n
;
slop
=
MASK
%
n
;
do
v
=
lrand
();
while
(
v
<=
slop
);
return
v
%
n
;
}