Hi, I have a problem with C++. Here is the question Given: #include <iostream> #

Question

Hi, I have a problem with C++. Here is the question

Given:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{ string Fname,Buf;
cout<<" Please type file name "<<endl;// get file name
getline(cin,Fname);
ifstream In(Fname.c_str());// open selected file
if(In.bad()){cout<<" Open failed"<<endl; exit(999);}// quit if open failed
while(In>>Buf)cout<<Buf<<endl;// print file contents
return 0;
}
Modify the above program such that the new program will allow a user to convert any file to :
a. All upper case or
b. All lower case or
c. Reverse case (i. e. upper-case to lower case and lower case to upper case)

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