NFD » ndn-cxx

NDN-TLV Non Negative Integer Encoding has an example:

255   => TT01FF

This code encodes it as TT0200FF:

// g++ encoding-buffer_nonNegativeInteger_255.cpp -lndn-cpp-dev -pthread -lboost_system -lboost_filesystem -lcrypto -lcryptopp -lsqlite3

#include <ndn-cpp-dev/encoding/encoding-buffer.hpp>
#include <cstdio>

int
main()
{
  ndn::EncodingBuffer blk;
  size_t length = blk.prependNonNegativeInteger(255);
  blk.prependVarNumber(length);
  blk.prependVarNumber(0xe0);

  for (ndn::Buffer::const_iterator it = blk.begin(); it != blk.end(); ++it) {
    printf("%02x", *it);
  }
}

Both encoding are permissible, because NDN-TLV spec does not require encoding with minimum number of octets.
But it's better to match the example in the spec.

Version: commit 7682ccbed444da1967f203aaa03959f4a3545979

Platform: Ubuntu 12.04