string::operator>>

Illustrates how to use the string::operator>> Standard Template Library (STL) function in Visual C++.

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

Remarks

备注

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

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

Security Note:
This operator copies data from an input source to a variable. If the input is not verified, this could potentially lead to a buffer overrun. For more information, see Avoiding Buffer Overruns.

Example

// string_operator_extract_sample.cpp
// compile with: /EHsc
//
// 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 ;

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

test

Enter a word: test
You entered: test

Requirements

Header: <string>

See Also

Concepts

Standard Template Library Samples