mirror of
https://github.com/XTXMarkets/ternfs.git
synced 2026-01-03 01:19:51 -06:00
9adca070ba
Also, produce fully static binaries. This means that `gethostname` does not work (doesn't work with static glibc unless you build it with `--enable-static-nss`, which no distro builds glibc with).
26 lines
936 B
C++
26 lines
936 B
C++
#pragma once
|
|
|
|
/* Written in 2015 by Sebastiano Vigna (vigna@acm.org)
|
|
|
|
To the extent possible under law, the author has dedicated all copyright
|
|
and related and neighboring rights to this software to the public domain
|
|
worldwide. This software is distributed without any warranty.
|
|
|
|
See <http://creativecommons.org/publicdomain/zero/1.0/>. */
|
|
|
|
#include <stdint.h>
|
|
|
|
/* This is a fixed-increment version of Java 8's SplittableRandom generator
|
|
See http://dx.doi.org/10.1145/2714064.2660195 and
|
|
http://docs.oracle.com/javase/8/docs/api/java/util/SplittableRandom.html
|
|
|
|
It is a very fast generator passing BigCrush, and it can be useful if
|
|
for some reason you absolutely want 64 bits of state. */
|
|
|
|
__attribute__((no_sanitize("integer")))
|
|
inline uint64_t splitmix64(uint64_t& x) {
|
|
uint64_t z = (x += 0x9e3779b97f4a7c15);
|
|
z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9;
|
|
z = (z ^ (z >> 27)) * 0x94d049bb133111eb;
|
|
return z ^ (z >> 31);
|
|
} |