[C] Linked List

坐火車時無聊，花了半小時的時間在練程式(用最單純的C Language)，寫了一個List Data Structure.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct Node *NodePtr;

/* Define "Node" structure */
struct Node
{
   int nNumber;
   char sName[24];
   NodePtr ptrNext;
};

typedef struct List *ListPtr;

/* Define "List" structure */
struct List
{
   NodePtr ptrHead;
};

/* Function: void fnInsertToListHead(ListPtr ptrListL, NodePtr ptrTargetNode)
* Brief: Insert a node TargetNode into the front of ListL
* Input: ptrListL: pointer, points to the List L
         ptrTargetNode: pointer, points to the wanna inserted node
* Output: The result of inserted list without return value.
*/
void fnInsertToListHead(ListPtr ptrListL, NodePtr ptrTargetNode)
{
   NodePtr ptrCreateNode=(NodePtr) malloc(sizeof(Node));
   ptrCreateNode->nNumber=ptrTargetNode->nNumber;
   strcpy(ptrCreateNode->sName,ptrTargetNode->sName);
   if(ptrListL->ptrHead == NULL)
   {
       ptrListL->ptrHead = ptrCreateNode;
       ptrCreateNode->ptrNext=NULL;
   }
   else
   {
       NodePtr ptrTempNode = ptrListL->ptrHead;
       ptrListL->ptrHead = ptrCreateNode;
       ptrCreateNode->ptrNext = ptrTempNode;
   }
}
/* Function: void fnScanList(ListPtr ptrL)
* Brief: Scan the List L, and show the elements of L.
* Input: ptrL: pointer to List L
* Output: None
*/
void fnScanList(ListPtr ptrL)
{
   printf("Scan List:\n");
   NodePtr ptrN = ptrL->ptrHead;
   while(ptrN != NULL)
   {
       printf("Number:%d\t,Name:%s\n",ptrN->nNumber,ptrN->sName);
       ptrN=ptrN->ptrNext;
   }
}
/* Function: void fnInitializeList(ListPtr ptrL)
* Brief: Initialize the List L
* Input: ptrL: pointer to List L
* Output: None.
*/
void fnInitializeList(ListPtr ptrL)
{
   ptrL->ptrHead=NULL;
}

int main(int argc, char * argv[])
{
   List myList;
   /* Initialize myList */
   fnInitializeList(&myList);
   myList.ptrHead=NULL;
   Node myNode1,myNode2;
   /* Set myNode1 with (1,"Node1"), myNode2 with (2,"Node2") */
   myNode1.nNumber=1;
   myNode2.nNumber=2;
   strcpy(myNode1.sName,"Node1");
   strcpy(myNode2.sName,"Node2");
   /* Insert myNode1 and myNode2 */
   fnInsertToListHead(&myList, &myNode1);
   fnInsertToListHead(&myList, &myNode2);
   /* Scan myList */
   fnScanList(&myList);
   return 0;
}