operator>> (<complex>)

Extracts a complex value from the input stream.

template<class Type, class Elem, class Traits> 
   basic_istream<Elem, Traits>& 
      operator>>( 
         basic_istream<Elem, Traits>& _Istr, 
         complex<Type>& _Right 
      );

Parameters

• _Istr
  The input stream from which the complex number is being extracted.

• _Right
  The complex number that is being extracted from the input stream.

Return Value

Reads the value of the specified complex number from _Istr and returns it into _Right.

Remarks

The valid input formats are

• ( real part, imaginary part )

• ( real part )

• real part

Example

// complex_op_extract.cpp
// compile with: /EHsc
#include <complex>
#include <iostream>

int main( )
{
   using namespace std;
   double pi = 3.14159265359;

   complex <double> c2;

   cout << "Input a complex number ( try: 2.0 ): ";
   cin >> c2;
   cout << c2 << endl;
}

  2.0

Requirements

Header: <complex>

Namespace: std