simple saving to a text

[thecrrrg]

i want to be able to choose what the file name that i can save to.
heres the code

// basic file operations
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int sup[1] = {2200};
 char filename[1];

int main () {
    ofstream myfile;
    cout << "what file name should used for this : " ;
    cin >> filename[0];
  
  myfile.open (filename[0].txt);
  myfile << sup[0];
  myfile.close();
  return 0;
}

[thecrrrg]

please help me

[coder777]

// basic file operations
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int sup[1] = {2200};
 string filename; // Note

int main () {
    ofstream myfile;
    cout << "what file name should used for this : " ;
    cin >> filename;  // Note
  
  myfile.open (filename);  // Note
  myfile << sup[0];
  myfile.close();
  return 0;
}

[thecrrrg]

thanks but i have this effor

15 E:\test v2\Untitled1.cpp no matching function for call to `std::basic_ofstream<char, std::char_traits<char> >::open(std::string&)'

[coder777]

This myfile.open (filename.c_str()); should solve the problem

[thecrrrg]

thanks alot :),
can you just quickly explain what the "c.str()" does so i dont make the same mistake again :)