C++下如何正確的讀取整個文件

#include<iostream>
#include <stdlib.h>
using namespace std;


#define MAXLENTH 2048

int main()
{
	char fileUrl[100] = {"F:\\ffmpeg\\ffmpeg-static\\bin\\Mojito.mp4"};
	char TempfileUrl[100] = {"F:\\ffmpeg\\ffmpeg-static\\bin\\Temp.mp4"};

	char szFileBuff[MAXLENTH];
	
        //以16進展形式打開
	FILE *pfile = fopen(fileUrl,"rb");
	if(NULL == pfile)
	{
		cout << "Open File Filed" << endl;
	}

	//用來記錄已經讀取的光標位置
	int count =0;


	FILE *pTemFile = fopen(TempfileUrl, "ab+");

	while (1)
	{
		//通過返回的多少來判斷是否讀到末尾。如果是正好被整除也會讀到0的。
		int tempFileSize = fread(szFileBuff, 1, MAXLENTH, pfile);
		if (MAXLENTH > tempFileSize)
		{
			fwrite(szFileBuff, tempFileSize, 1,pTemFile);
			cout  <<"write end!!!" << endl;
			break;
		}
		else
		{
			fwrite(szFileBuff, MAXLENTH, 1,pTemFile);
			count+=MAXLENTH;
			fseek(pfile, count, 0);
			cout << count <<"write ok" << endl;
			fclose(pTemFile);
		}
	}

	fclose(pfile);
	fclose(pTemFile);

	system("pause");
	return 0;
}