C - 设计自己的 free( ) 函数

c
#include <stdio.h>
#include <stdlib.h>
typedef struct Node {
    void* address;
    size_t size;
    struct Node* next;
} Node;
Node* head = NULL;
void my_free(void* ptr) {
    if (ptr == NULL) {
        printf("Error: Invalid pointer\n");
        return;
    }
    Node* current = head;
    Node* previous = NULL;
    while (current != NULL) {
        if (current->address == ptr) {
            if (previous == NULL) {
                head = current->next;
            } else {
                previous->next = current->next;
            }
            free(current->address);
            free(current);
            printf("Memory freed successfully\n");
            return;
        }
        previous = current;
        current = current->next;
    }
    printf("Error: Invalid pointer\n");
}
void* my_malloc(size_t size) {
    void* ptr = malloc(size);
    if (ptr == NULL) {
        printf("Error: FAIled to allocate memory\n");
        return NULL;
    }
    Node* node = (Node*)malloc(sizeof(Node));
    node->address = ptr;
    node->size = size;
    node->next = head;
    head = node;
    return ptr;
}
int mAIn() {
    int* array = (int*)my_malloc(5 * sizeof(int));
    for (int i = 0; i < 5; i++) {</p>        array[i] = i + 1;
        printf("%d ", array[i]);
    }
    printf("\n");
    my_free(array);
    return 0;
}