valarray::operator>>=
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# valarray::operator>>=

Visual Studio 2005

Right-shifts the bits for each element of a valarray operand a specified number of positions or by an element-wise amount specified by a second valarray.

valarray<Type>& operator>>=(
const valarray<Type>& _Right
);
valarray<Type>& operator>>=(
const Type& _Right
);

#### Parameters

_Right

The value indicating the amount of right shift or valarray whose elements indicate the element-wise amount of right shift.

## Return Value

A valarray whose elements have been shifted right the amount specified in _Right.

## Remarks

Signed numbers have their signs preserved.

## Example

// valarray_class_op_rs.cpp
// compile with: /EHsc
#include <valarray>
#include <iostream>

int main( )
{
using namespace std;
int i;

valarray<int> vaL ( 8 ), vaR ( 8 );
for ( i = 0 ; i < 8 ; i += 2 )
vaL [ i ] =  64;
for ( i = 1 ; i < 8 ; i += 2 )
vaL [ i ] =  -64;
for ( i = 0 ; i < 8 ; i++ )
vaR [ i ] =  i;

cout << "The initial operand valarray is: ( ";
for ( i = 0 ; i < 8 ; i++ )
cout << vaL [ i ] << " ";
cout << ")." << endl;

cout << "The _Right valarray is: ( ";
for ( i = 0 ; i < 8 ; i++ )
cout << vaR [ i ] << " ";
cout << ")." << endl;

vaL >>= vaR;
cout << "The element-by-element result of "
<< "the right shift is the\n valarray: ( ";
for ( i = 0 ; i < 8 ; i++ )
cout << vaL [ i ] << " ";
cout << ")." << endl;
}

#### Output

The initial operand valarray is: ( 64 -64 64 -64 64 -64 64 -64 ).
The _Right valarray is: ( 0 1 2 3 4 5 6 7 ).
The element-by-element result of the right shift is the
valarray: ( 64 -32 16 -8 4 -2 1 -1 ).

valarray Class

valarray Members

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