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refs/heads/android13-d4-release
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src
/
prng
/
rand_r.c
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#include
<stdlib.h>
static
unsigned
temper
(
unsigned
x
)
{
x
^=
x
>>
11
;
x
^=
x
<<
7
&
0x9D2C5680
;
x
^=
x
<<
15
&
0xEFC60000
;
x
^=
x
>>
18
;
return
x
;
}
int
rand_r
(
unsigned
*
seed
)
{
return
temper
(*
seed
=
*
seed
*
1103515245
+
12345
)/
2
;
}