Function resetHash

Sming/Components/ssl/BearSsl/BrClientConnection.cpp:19–22

namespace
{
template <class HashCtx> void resetHash(std::unique_ptr<HashCtx>& ctx, bool create)
{
	ctx.reset(create ? new HashCtx : nullptr);
}

template <class HashCtx> void updateHash(HashCtx& ctx, const uint8_t* buf, size_t len)
{