free its keys too when freeing a ht
-rw-r--r-- 1469 CuTest-license.txt
drwxr-xr-x - include
-rw-r--r-- 1905 license.txt
-rw-r--r-- 2960 makefile
drwxr-xr-x - runtime
drwxr-xr-x - struct
-rw-r--r-- 291 todo