Code review comment for lp:~widelands-dev/widelands/ai-post-b19-2

BTW comments like

  //Should happen only rarely so we print a warning here

will break codecheck, always use a blank space:

  // Should happen only rarely so we print a warning here

Regarding your question in the code, size_t is an unsigned type http://www.cplusplus.com/reference/cstddef/size_t/?kw=size_t