fstream

Code:

#include <fstream>
#include <iostream>
#include <string>

using namespace std;

int main()
{
  char str[100];

  
  ofstream a_file ( "example.txt" );
  
  a_file<<"This text will now be inside of example.txt";
  
  a_file.close();
  
  ifstream b_file ( "example.txt" );
  
  
  b_file>> str;
  
  cout<< str <<"\n";
  cin.get();    
 
}

why is just prints "this", it supposed to print "This text will now be inside of example.txt".
is there any solution for this?

Because reading a string from a file it stops at whitespaces.

I beleive if you set "noskipws" on your iostream line, it will not do that.

--
Mats

how to set that? is it something like

Code:

#include <fstream>
#include <iostream>
#include <string>

using namespace std;

int main()
{
  char str[100];

  
  ofstream a_file ( "example.txt" );
  
  a_file<<noskipws<<"This text will now be inside of example.txt";
  
  a_file.close();
  
  ifstream b_file ( "example.txt" );
  
  
  b_file>> str;
  
  cout<< str <<"\n";
  cin.get();    
}

if this is the case, i still get the "this", not the full string.

The noskipws is used in conjunction with the ifstream object, not the ofstream object.

To read a line of input into a string std::getline is used:

Code:

getline(b_file, str);

none of the above works

Or chances are you messed up..... again.

>> none of the above works
anon's suggestion assumes you're using C++ strings, but your code uses C style strings. Either switch to C++ strings or lookup getline for C style strings.

Code:

#include <fstream>
#include <iostream>
#include <string>

using namespace std;

int main()
{
  char str[10];

  
  ofstream a_file ( "example.txt" );
  a_file<<"This text will now be inside of example.txt";
  
  a_file.close();
  
  ifstream b_file ( "example.txt" );
  
  
  b_file>>noskipws>>str;
  
  cout<<noskipws<< str <<"\n";
  cin.get();    
 
}

didnt work

That is correct, I just tried it - but getline should definitely work. Just pass in sizeof(str) as the size, and you should get the 9 first letters of your line. Obviously, reading the entire line will severely overflow your 10 character long array, so that would be a bad idea.

--
Mats