source:
EcnlProtoTool/trunk/musl-1.1.18/src/prng/rand.c
Last change on this file was 444, checked in by , 4 years ago | |
---|---|
|
|
File size: 183 bytes |
Rev | Line | |
---|---|---|
[444] | 1 | #include <stdlib.h> |
2 | #include <stdint.h> | |
3 | ||
4 | static uint64_t seed; | |
5 | ||
6 | void srand(unsigned s) | |
7 | { | |
8 | seed = s-1; | |
9 | } | |
10 | ||
11 | int rand(void) | |
12 | { | |
13 | seed = 6364136223846793005ULL*seed + 1; | |
14 | return seed>>33; | |
15 | } |
Note:
See TracBrowser
for help on using the repository browser.