Initializacia

cv7/program.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <string.h>
+#include <assert.h>
 #include <stdlib.h>
 
 #define SIZE 100
@@ -17,7 +18,7 @@ struct tree* read_tree() {
     if (!r || buffer[0] == '\n') {
         return NULL;
     }
-    buffer[strcspn(buffer, "\n")] = 0; 
+    buffer[strcspn(buffer, "\n")] = 0;
     struct tree* node = calloc(1, sizeof(struct tree));
     strncpy(node->value, buffer, SIZE - 1);
     return node;
@@ -28,12 +29,10 @@ struct tree* load_tree() {
     if (!node) {
         return NULL;
     }
-
     if (node->value[0] != '*') {
         node->left = load_tree();
         node->right = load_tree();
     }
-    
     return node;
 }
 
@@ -66,20 +65,16 @@ void run_tree(struct tree* tree) {
 }
 
 void destroy_tree(struct tree* tree) {
-    if (!tree) {
-        return;
+    if (tree->left != NULL) {
+        destroy_tree(tree->left);
+    }
+    if (tree->right != NULL) {
+        destroy_tree(tree->right);
     }
-    
-    destroy_tree(tree->left);
-    destroy_tree(tree->right);
     free(tree);
 }
 
 void count_items(struct tree* tree, int* count) {
-    if (!tree) {
-        return;
-    }
-
     if (tree->left == NULL && tree->right == NULL) {
         (*count)++;
     } else {
@@ -90,9 +85,7 @@ void count_items(struct tree* tree, int* count) {
 
 int main() {
     struct tree* root = load_tree();
-
     printf("Expert z bufetu to vie.\n");
-
     if (!root) {
         printf("Chybna databaza\n");
         return 0;