string::operator>> (STL Sample)

The sample code below illustrates how to use the string::operator>> STL function in Visual C++.

Required Header:
<string>

template<class E, class TYPE, class A> inline
     basic_istream<E, TYPE>&
     operator>>(basic_istream<E, TYPE>& InStream,
     basic_string<E, TYPE, A>& String);

Note: The class/parameter names in the prototype do not match the version in the header file. Some have been modified to improve readability.

Description:
The operator>> is used to populate a string with the contents of an input stream.

Sample Code:

//////////////////////////////////////////////////////////////////////
//
// Compile options needed: /GX
//
// StringExtract.cpp : Illustrates how to use the operator>> to extract
//                     a string from an input stream, populating a string
//                     variable with the contents.
//
// Functions:
//
//    operator>>  Extracts a string from an input stream.
//////////////////////////////////////////////////////////////////////

#pragma warning(disable:4786)
#include <string>
#include <iostream>

using namespace std ;

void main()
{
    string s1;
    cout << "Enter a word: ";
    cin >> s1;
    cout << endl << "You entered: " << s1;
}
 

Program Output is:

Enter a word: Sample

You entered: Sample