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Added linked list implementation and demo project

This commit is contained in:
2020-01-23 13:08:54 +01:00
parent 9a90e2ff87
commit b3fb5dac93
8 changed files with 568 additions and 0 deletions

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#include "linked_list.h"
#include <stdlib.h>
static Node* create(void* data)
{
Node* node = calloc(1, sizeof(Node));
if (!node)
return NULL;
node->data = data;
return node;
}
void list_print(Node* head, void (*print_func)(void*))
{
while (head)
{
print_func(head->data);
head = head->next;
}
}
void list_push(Node** head, void* data)
{
Node* node = create(data);
if (!node)
return;
node->next = *head;
if (*head)
(*head)->prev = node;
*head = node;
}
void list_append(Node** head, void* data)
{
Node* node = create(data), *end;
if (!node)
return;
if (!*head)
*head = node;
else
{
end = *head;
while (end->next)
end = end->next;
end->next = node;
node->prev = end;
}
}
void list_insert(Node* prev_node, void* data)
{
Node* node = create(data);
if (!node)
return;
node->next = prev_node->next;
node->prev = prev_node;
prev_node->next = node;
if (node->next)
node->next->prev = node;
}
Node* list_get(Node* head, unsigned index)
{
while (head && index--)
head = head->next;
return head;
}
void list_remove(Node* node)
{
if (node->prev)
node->prev->next = node->next;
if (node->next)
node->next->prev = node->prev;
free(node);
}

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#pragma once
typedef struct Node {
struct Node* next, * prev;
void* data;
} Node;
void list_print(Node* head, void (*print_func)(void*));
void list_push(Node** head, void* data);
void list_append(Node** head, void* data);
void list_insert(Node* prev_node, void* data);
Node* list_get(Node* head, unsigned index);
void list_remove(Node* node);