Interesting libraries

Libraries I ought check out, for possible use in my code (hopefully replacing bitrotting code I'm no longer interested in) or just to learn from:

• ssdeep (Debian package: ssdeep)
  • Context-triggered hashing for fuzzy content matching. Could be used for ctxdiff.
• liboil (Debian package: liboil-dev)
  • Simple functions optimized for various CPU's. Could replace libdank's magic.c.
• cxxtools (Debian package: libcxxtools-dev)
  • Utility functionality for C++ beyond the standard libraries.
• Pootle's python-Levenshtein (Debian package: python-levenshtein)
  • "The Levenshtein module computes Levenshtein distances, similarity ratios, generalized medians and set medians of Unicode or non-Unicode strings...The Levenshtein distance is the minimum number of single-character insertions, deletions, and substitutions to transform one string into another. It is useful for spell checking, or fuzzy matching of gettext messages."
• libpfm (Debian package: libpfm3) (Linux only)
  • An analogue to libpmc for Linux? "The goal of the project is to design and implement, on all major architectures, a standard Linux kernel interface, to access the hardware performance counters of modern processors. The project also developed a user library,libpfm, and a tool, pfmon." Appears to require a kernel patch, even against 2.6.25.
• libcpusets (Debian package: http://packages.debian.org/search?keywords=libcpuset)
  • Library for cpuset management from userspace, courtesy of SGI (useful for NUMA)

I've discovered most of these via aptitude's "New Packages" functionality.

See also

• Working with libraries