firstFileData.nextFile != NULL 这个表达式错在哪里？

RT

----------------解决方案--------------------------------------------------------

NULL在TC 2.0中是没有定义的

----------------解决方案--------------------------------------------------------
哦，谢谢
----------------解决方案--------------------------------------------------------
firstFileData.nextFile != 0 还是有错
----------------解决方案--------------------------------------------------------

提示式：结构体运算符错误

----------------解决方案--------------------------------------------------------

/*文件操作函数件*/

#include <dir.h>
#include <alloc.h>
#include <stdlib.h>
#include <stdio.h>

struct fileData{
char ff_reserved[21];
char ff_attrib;
unsigned ff_ftime;
unsigned ff_fdate;
long ff_fsize;
char ff_name[13];
struct fileData *nextFile;
};

struct ffblk tempBlk;
struct fileData firstFileData;
struct fileData *currentFileData;
struct fileData *tempFileData;

int fileOperInit();
int fileList(char *path,struct fileData *firstFileData);
/*搜索指定文件目录下所有文件的信息，并存入一个以firstFileData为头的链表*/

int fileOrder(int mode,struct fileData *firstFileData);
/*对一个以firstFileData为头的链表使用MODE模式进行排序
MODE 0：以文件名
1：以最近更新日期
2：以文件大小
3：以文件类型*/

int fileOperInit(){
firstFileData.nextFile = 0;
return 0;
}

int fileList(char *path,struct fileData *firstFileData){
int done;

if (firstFileData.nextFile != 0){
currentFileData = firstFileData->nextFile;
while(currentFileData->nextFile != 0){
tempFileData = currentFileData;
currentFileData = currentFileData->nextFile;
free(tempFileData);
}
free(currentFileData);
firstFileData.nextFile = 0;
}
else{
if ((done = findfirst("*.*",&tempBlk,0)) == 0){
firstFileData.ff_reserved[] = tempBlk.ff_reserved[];
firstFileData.ff_attrib = ff_attrib;
firstFileData.ff_ftime = tempBlk.ff_ftime;
firstFileData.ff_fdate = tempBlk.ff_fdate;
firstFileData.ff_fsize = tempBlk.ff_fsize;
firstFileData.ff_name[] = tempBlk.ff_name[];
}

if (done = findnext(&tempBlk) == 0){
firstFileData.nextFile = (fileData *)malloc(sizeof fileData);
currentFileData = firstFileData.nextFile;
currentFileData.ff_reserved[] = tempBlk.ff_reserved[];
currentFileData.ff_attrib = ff_attrib;
currentFileData.ff_ftime = tempBlk.ff_ftime;
currentFileData.ff_fdate = tempBlk.ff_fdate;
currentFileData.ff_fsize = tempBlk.ff_fsize;
currentFileData.ff_name[] = tempBlk.ff_name[];
}
while (done = findnext(&tempBlk) != 0){
currentFileData.nextFile = (fileData *)malloc(sizeof fileData);
currentFileData = currentFileData.nextFile;
currentFileData.ff_reserved[] = tempBlk.ff_reserved[];
currentFileData.ff_attrib = ff_attrib;
currentFileData.ff_ftime = tempBlk.ff_ftime;
currentFileData.ff_fdate = tempBlk.ff_fdate;
currentFileData.ff_fsize = tempBlk.ff_fsize;
currentFileData.ff_name[] = tempBlk.ff_name[];
}
currentFileData.next = 0;
}
return 0;
}

int fileOrder(int mode,struct fileData *firstFileData){
return 0;
}

int main()
{
fileOperInit();
fileList("D:\\C\\Reader",firstFileData);
printf("%s%s",firstFileData.ff_name[],firstFileData->nextFile->ff_name[]);
getch();
}

----------------解决方案--------------------------------------------------------
firstFileData->nextFile

园点操作用于结构变量

指针应用->
----------------解决方案--------------------------------------------------------
哦，谢谢
----------------解决方案--------------------------------------------------------

但是编译器说 firstFileData.ff_reserved[] = tempBlk.ff_reserved[];
也有这个错误啊～

这个确实是变量

----------------解决方案--------------------------------------------------------
顶上取
----------------解决方案--------------------------------------------------------