3#include <boost/utility/string_ref.hpp>
13 return [&](boost::string_ref
const& b) { s.
append(b.data(), b.size()); };
API version numbers used in later API versions.
Output stringOutput(std::string &s)
std::function< void(boost::string_ref const &)> Output
Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.