Node.h run error in language c

[bankzab176 91]

i have to use fuction node.h for program me.
run error here==> newNode = (struct Node *)malloc(sizeof(struct Node));

 
#include<stdio.h>
#include<stdLib.h>
//structure Link List
struct node{
int item;
struct Node *next;
};
//Function insert new node in Link List
    struct Node *insertNode (int newitem,struct Node *nextNode){
    struct Node *newNode;
    newNode = (struct Node *)malloc(sizeof(struct Node));  <<<<============here
    newNode->item = newitem;
    newNode->next = nextNode;
    return(newNode);
}


and  i use for program this.


#include <stdio.h>
#include <stdlib.h>
#include <node.h>
#define true 1
#define false 0
typedef int boolean;
struct Node *newNode;
struct Node * head;
struct Node * curr;
struct Node * prev;
//add node in like list
void add(int newItem) {
        if (head == NULL) {
        newNode = insertNode(newItem,NULL);
    } else {
        newNode = insertNode(newItem,head);
    }
    head = newNode;
}
//search node in link list
boolean searchItem(int item) {
    curr = head;
    prev = NULL;
    boolean status = false;
    while (curr->item == item) {
        if (curr->item == item) {
        status = true;
        break;
    } else {
        prev = curr;
        curr = curr->next;
    }
 }
    if (status) {
      return trun;
    } else {
    reture false;
    }
}
//delete node in link list
int deleteNode(int item) {
    if (searchItem(item)) {
        if(prev ==NULL) {
            head = curr->next;
    } else {
        prev->next = curr->next;
    }
    } else { printf("Not found item.\n");}
}
//insert node in link list
int insert(int iteminsert,int newitem) {
    newNode = insertNode(newItem,NULL);
    if (searchItem(iteminsert)) {
        if (prev == NULL) {
            newNode->next = curr;
            head = newNode;
        } else {
            newNode->next = curr;
            prev->next = newNode;
    }
 } else {
        if (head == NULL) {
            newNode->next = curr;
            head = newNode;
        } else if (curr == NULL) {
            prev->next = newNode;
    }
}
}
//show data node in link list
int showdata () {
    curr = head;
    while (curr != NULL) {
        printf ("%d",curr->item);
        curr = curr->next;
    }
    printf ("\n");
}
int main () {
    add (9);
    printf ("add 9 : ");
    showdata();
    add (10);
    printf("add 10 : ");
    showdata();
    add (11);
    printf ("add 11 : ");
    showdata ();
    add (12);
    printf ("add 12 : ");
    showdata()
    deleteNode (10);
    printf ("delete 10 : ");
    showdata ();
    deleteNode (12);
    printf ("delete 12 : ");
    showdata();
    insert (11,15);
    printf ("insert 15 before 11 : ");
    showdata();
    insert(11,17);
    printf ("insert 17 before 11 : ");
    showdata();
    insert (18,19);
    printf ("insert 19 at last Link List");
    showdata();
    scanf("%d");
}   

  

[jlb]

The first thing you need to realize is that C is case sensitive so things like "#include<stdLib.h>" and "#include<stdlib.h>" and "Node" and "node" are not the same.

[bankzab176 91]

i do program already. but it Inconclusive. it' to error position

newNode = (struct Node *)malloc(sizeof(struct Node));