file stream, read from one text file and put the text into new file

[Ausha]

I have an excersise, where i have to read text from a text file in read mode and the copy that text to another text file in write mode, so far its all ok with reading the file, but stuck on placing that output in another.

 #include<iostream>
#include<fstream>
#include<cctype>
using namespace std;

int main()
{
    fstream mans;
    fstream mans2;
    char c;
   
    mans.open("my_file.txt", ios::in);
   mans2.open("my_file2.txt", ios::out);
  
  mans.get(c); //reading first file
    while (mans)
    {
     cout<<c;
         mans.get(c);
    };
   
  //need to place the text from my_file.txt to my_file2.txt besides in uppercase.
mans.close();
mans2.close();

//check, if the text is placed into other file
char a;        
mans2.open("my_file2.txt", ios::in);
mans2.get(a);
 while (mans2)
    {
          cout<<a;
          mans.get(a);
          };
mans2.close();

system("pause");
return 0;
    
}

[keskiverto]

Line 18: you do write to a stream. Which stream should you write to here?

[coder777]

Use the put() function:

http://www.cplusplus.com/reference/ostream/ostream/put/?kw=put


or so:

    while (mans >> c) //reading first file
    {
     cout<<c;
     mans2 << c;
    }

[Ausha]

yeah..i thought so too but none of this works :( i am missing something.

[keskiverto]

Please explain the "none works".

[Ausha]

mans2<<c:
mans.get(c);

//tried it like this
while (!mans.eof())
{
cout<<c;
mans.get(c);
mans2<<c;
mans2.put(c);
}

[Ausha]

both text files should contain the same text in the end

[coder777]

Either put(c) or << not both.

If you write it like so the end of file is not properly handled (if get(c) detects an error like eof c is written to the output file regardless)