operator<< (<bitset>)
Inserts a text representation of the bit sequence into the output stream.
template<class CharType, class Traits, size_t N>
basic_ostream<CharType, Traits>& operator<< (
basic_ostream<CharType, Traits>& ostr,
const bitset<N>& _Right
);
Parameters
- _Right
An object of type bitset<N> that is to be inserted into the output stream as a string.
Return Value
A text representation of the bit sequence in ostr.
Remarks
The template function overloads operator<<, allowing a bitset to be written out without first converting it into a string. The template function effectively executes:
ostr << _Right.to_string <CharType, Traits, allocator<CharType> > ( )
Example
// bitset_op_insert.cpp
// compile with: /EHsc
#include <bitset>
#include <iostream>
#include <string>
int main( )
{
using namespace std;
bitset<5> b1 ( 9 );
// bitset inserted into output stream directly
cout << "The ordered set of bits in the bitset<5> b1(9)"
<< "\n can be output with the overloaded << as: ( "
<< b1 << " )" << endl;
// Compare converting bitset to a string before
// inserting it into the output steam
string s1;
s1 = b1.template to_string<char,
char_traits<char>, allocator<char> >( );
cout << "The string returned from the bitset b1"
<< "\n by the member function to_string( ) is: "
<< s1 << "." << endl;
}
Output
The ordered set of bits in the bitset<5> b1(9)
can be output with the overloaded << as: ( 01001 )
The string returned from the bitset b1
by the member function to_string( ) is: 01001.
Requirements
Header: <bitset>
Namespace: std