Create a new non-modifiable buffer that represents the given POD array.
template< typename PodType, std::size_t N> const_buffer buffer( const PodType (&data)[N], std::size_t max_size_in_bytes);
A const_buffer
value equivalent to:
const_buffer( static_cast<const void*>(data), min(N * sizeof(PodType), max_size_in_bytes));