Various data structures, from stack to tree, which can contain any data type.
make [src] make install 'src' is Makefile default target.
Vector* v = vector_new(int);
vector_push(v, 32);
vector_push(v, 42);
int a; vector_get(v, 1, a); //a now contains 42
vector_set(v, 0, 0); //v[0] now contains 0
vector_destroy(v);
More examples in the unit tests under test/ folder.