麻烦高手帮忙看个有关问题，感谢感谢！

void test()
{   
    char tempBuffer[] = "- This, a sample string.";
    char *ptoken;
    ptoken = strtok(tempBuffer, " ,.-");
    struct wordInfo *ppWordInfoList;
    struct wordInfo *pWordInfo;
    while(ptoken != NULL)
    {  
       struct wordInfo *pWordInfo = (struct wordInfo*)realloc(pWordInfo, sizeof(wordInfo));
    [color=#FF0000]   //为什么在上一行报错，应该怎么改？[/color]
       pWordInfo->pstr = (char*)realloc(pWordInfo->pstr, strlen(ptoken)+1);
       strcpy(pWordInfo->pstr, ptoken);
       printf("%s\n", pWordInfo->pstr);
       ptoken = strtok(NULL, " ,.-");
    }
}

#include<vector>
#include<iostream>
using namespace std;

struct wordInfo
{  
   char *pstr;
   struct wordInfo *next;
};
void test()
{   
    char tempBuffer[] = "- This, a sample string.";
    char *ptoken;
    int i = 0,j;
    ptoken = strtok(tempBuffer, " ,.-");
    struct wordInfo **ppWordInfoList = (struct wordInfo**)malloc(sizeof(struct wordInfo*));
    while(ptoken != NULL)
    {  
       if( i != 0)
       {
           ppWordInfoList = (struct wordInfo**)realloc(ppWordInfoList, (i+1)*sizeof(struct wordInfo*));
       }
       ppWordInfoList[i] = (struct wordInfo*)malloc(sizeof(struct wordInfo));
       ppWordInfoList[i]->pstr = (char*)malloc(strlen(ptoken) + 1);
       strcpy(ppWordInfoList[i]->pstr, ptoken);
       printf("%s\n", ppWordInfoList[i]->pstr);
       ptoken = strtok(NULL, " ,.-");
       i++;
    }
    printf("aaaaaaaaaaaaaa\n");
    for(j = 0; j < i; j++)
    {        
       printf("%s\n", ppWordInfoList[j]->pstr);
    }
}


int main()
{

    test();
    return 0;
}