iostream c 2b 2b

1// iostream_cerr.cpp
2// compile with: /EHsc
3#include <iostream>
4#include <fstream>
5
6using namespace std;
7
8void TestWide( )
9{
10   int i = 0;
11   wcout << L"Enter a number: ";
12   wcin >> i;
13   wcerr << L"test for wcerr" << endl;
14   wclog << L"test for wclog" << endl;
15}
16
17int main( )
18{
19   int i = 0;
20   cout << "Enter a number: ";
21   cin >> i;
22   cerr << "test for cerr" << endl;
23   clog << "test for clog" << endl;
24   TestWide( );
25}
26

1std::cout << "Hello World!" << std::endl; //Or you can do
2std::cout << "Hello World!" <<; //Only in some scenarios 

1#include <iostream>

1#include <iostream>
2std::cin
3std::cout

1sstream  str()