结构体构成的栈初始化报错问题

char *str；似乎把这个写进结构体然后调用malloc（）就报错了，各位有遇到过吗？是不是这样啊？

结构体里包含指针类型时，动态申请结构体内存并不会报错，但是在使用之前要对这个指针类型申请指向的内存。

我试了一下没报错啊！你是不是其他地方写的有问题？

#include "stdafx.h"
#include
#include

typedef unsigned int UINT32;
typedef unsigned short USHORT;
typedef unsigned char UCHAR;

typedef struct tagTest
{
USHORT usA;
USHORT usB;
UINT32 uiC;
UCHAR *pucBuff;

}Test_S;

int _tmain(int argc, _TCHAR* argv[])
{
Test_S *pstTest = NULL;

pstTest = (Test_S*)malloc(sizeof(Test_S));

if (NULL == pstTest)
{
    return 1;
}

pstTest->pucBuff = (UCHAR*)malloc(sizeof(UINT32));

if (NULL == pstTest->pucBuff)
{
    return 1;
}

*((UINT32*)(pstTest->pucBuff)) = 0x12345678;

printf("0x%x", *((UINT32*)(pstTest->pucBuff)));

free(pstTest->pucBuff);
free(pstTest);

getchar();
return 0;

}