Method randomBytes

flow/DeterministicRandom.cpp:129–144

}

void DeterministicRandom::randomBytes(uint8_t* buf, int length) {
	constexpr const int unitLen = sizeof(decltype(gen64()));
	for (int i = 0; i < length; i += unitLen) {
		auto val = gen64();
		memcpy(buf + i, &val, std::min(unitLen, length - i));
	}
	if (randLog && useRandLog) {
		constexpr const int cutOff = 32;
		bool tooLong = length > cutOff;
		fmt::print(randLog,
		           "Rbytes[{}] {}{}\n",
		           length,
		           StringRef(buf, std::min(cutOff, length)).printable(),
		           tooLong ? "..." : "");
	}
}

uint64_t DeterministicRandom::peek() const {
	return next;