Good STL-like library for C [closed]
The Glib library used on the Gnome project may also be some use. Moreover it is pretty well tested.
IBM developer works has a good tutorial on its use: Manage C data using the GLib collections
As always, Google is your friend:
http://nixbit.com/cat/programming/libraries/c-generic-library/
specifically:
http://nixbit.com/cat/programming/libraries/generic-data-structures-library/
There's some stuff in the Apache Portable Runtime (APR) that I'd expect to be very solid.