On Fri, Apr 15, 2022 at 6:43 PM Ivan Matek wrote:

Internally as a member, not talking about template argument.

Note that boost::static_string (Boost.StaticString) does not always use size_t: https://github.com/boostorg/static_string/blob/develop/include/boost/static_... // Find the smallest width integral type that can hold a value as large as N (Glen Fernandes) template using smallest_width = typename std::conditional<(N <= (std::numeric_limits<unsigned char>::max)()), unsigned char, typename std::conditional<(N <= (std::numeric_limits<unsigned short>::max)()), unsigned short, typename std::conditional<(N <= (std::numeric_limits<unsigned int>::max)()), unsigned int, typename std::conditional<(N <= (std::numeric_limits<unsigned long>::max)()), unsigned long, typename std::conditional<(N <= (std::numeric_limits<unsigned long long>::max)()), unsigned long long, std::size_t>::type>::type>::type>::type>::type; Maybe boost::beast::static_string can become an alias to boost::static_string. Glen