sstream c++ code example

Example 1: convert string to stream c++

// stringstream::str
#include <string>       // std::string
#include <iostream>     // std::cout
#include <sstream>      // std::stringstream, std::stringbuf

int main () {
  std::stringstream ss;
  ss.str ("Example string");
  std::string s = ss.str();
  std::cout << s << '\n';
  return 0;
}

Example 2: iostream library in cpp

// iostream_cerr.cpp
// compile with: /EHsc
#include <iostream>
#include <fstream>

using namespace std;

void TestWide( )
{
   int i = 0;
   wcout << L"Enter a number: ";
   wcin >> i;
   wcerr << L"test for wcerr" << endl;
   wclog << L"test for wclog" << endl;
}

int main( )
{
   int i = 0;
   cout << "Enter a number: ";
   cin >> i;
   cerr << "test for cerr" << endl;
   clog << "test for clog" << endl;
   TestWide( );
}

Example 3: c++ string to stream

// EXAMPLE
ostringstream ssTextAsStream("This is part of the stream."); // declare ostringstream
string sTextAsString = ssTextAsStream.str(); // converted to string
cout << sTextAsString << "\n"; // printed out

/* SYNTAX
<YourStringStream>.str()
*/

/* HEADERS
#include <iostream>
#include <sstream>
using namespace std;
*/

Example 4: stringstream in c++

std::stringstream os;
os << "12345 67.89"; // insert a string of numbers into the stream

std::string strValue;
os >> strValue;

std::string strValue2;
os >> strValue2;

// print the numbers separated by a dash
std::cout << strValue << " - " << strValue2 << std::endl;

Example 5: sstream c++

sstream  str()