Re: [Boost-users] Seeding boost::mt19937 with bytes from CryptoGenRandom

AMDG Ovanes Markarian wrote:

...

The memcpy should copy from randomBytes into seed. (Assuming I haven't forgotten the signature of memcpy.)

Seems, like I forgot the signature... Another way to transfer the bytes would be:

union bytes2seed { uint64_t seed_; char bytes_[sizeof(uint64_t)]; };

bytes2seed converter;

Now one can pass &converter.bytes_[0] to CryptGenRandom. This does not require an additional memcpy call.

Casting through a union is undefined behavior. :(. In Christ, Steven Watanabe