chromium/v8/src/third_party/siphash/halfsiphash.cc

/*
 * SipHash reference C implementation
 *
 * Copyright (c) 2016 Jean-Philippe Aumasson <[email protected]>
 *
 * To the extent possible under law, the author(s) have dedicated all
 * copyright and related and neighboring rights to this software to the public
 * domain worldwide. This software is distributed without any warranty.
 *
 * You should have received a copy of the CC0 Public Domain Dedication along
 * with this software. If not, see
 * <http://creativecommons.org/publicdomain/zero/1.0/>.
 */

/*
 * Originally taken from https://github.com/veorq/SipHash/
 * Altered to match V8's use case.
 */

#include "src/third_party/siphash/halfsiphash.h"

#include "src/base/logging.h"

#define ROTL(x, b) …

#define SIPROUND …

// Simplified half-siphash-2-4 implementation for 4 byte input.
uint32_t halfsiphash(const uint32_t value, const uint64_t seed) { … }