Create a new modifiable buffer that represents the given POD array.
template< typename PodType, std::size_t N> mutable_buffers_1 buffer( PodType (&data)[N], std::size_t max_size_in_bytes);
A mutable_buffers_1
value equivalent to:
mutable_buffers_1( static_cast<void*>(data), min(N * sizeof(PodType), max_size_in_bytes));