TODO.txt

To do:
 - lock stdout before writing, so no two processes can open the same output file
 - document code
 - verify correct handling of large files (>4GB)
   (The theoretical file size limit is 2TB)
 - refactor identify.c so printing of verbose data is moved to tardiffinfo.c
 - current tools do not verify all writes -- they really should!

To fix:
tardiffinfo:
 - current used-file analysis is O(N^2) while it could be O(N log N)
 - current used-file analysis uses O(N) of stack space
tardiffmerge:
 - current used-file analysis is O(N^2) while it could be O(N log N)

Possible new features:
- allow tardiffpatch to accept multiple diff files (which are then first merged)
- support for multithreaded processing (useful for multi-core systems)

Possible file format extensions:
- add checksum to diff files so their consistency can be verified by tardiffinfo
- store original file name in diff files so it does not have to be specified on
  the command line
- it would be nice to be able to read header data without processing the entire
  file, but how can we do this?