add option to enable more warnings

Automated merge

add documentation to allocator.h

implement cx_tree_add_child_node using cx_linked_list_add

add cx_tree_add_child_node tests

fix special cases for linked_list_add

Automated merge

implement at least freeing the linked list container

add utility to verify allocations

fix reallocate_null test not used and wrong

(0) -300 -100 -10 +10 +100 +300 +1000 tip

mercurial