tree.c 224 Bytes Edit Raw Blame History 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 #include "tree.h" tree make_empty_tree(){ return NULL; } int is_empty(tree t){ return t==NULL; } int is_leaf(tree t){ return is_empty(t.next);//<=>t.val=='\0' } int is_end(tree t){ return isIn_list(t.next,'\0'); }