bitset::operator
Returns a reference to a bit at a specified position in a bitset if the bitset is modifiable; otherwise, it returns the value of the bit at that position.
bool operator[](
size_t _Pos
) const;
reference operator[](
size_t _Pos
);
Parameters
- _Pos
The position locating the bit within the bitset.
Remarks
When compiling with _SECURE_SCL 1, a runtime error will occur if you attempt to access an element outside the bounds of the bitset. See Checked Iterators for more information.
Example
// bitset_op_REF.cpp
// compile with: /EHsc
#include <bitset>
#include <iostream>
int main( )
{
using namespace std;
bool b;
bitset<5> b1 ( 6 );
cout << "The initialized bitset<5> b1( 2 ) is: ( "<< b1 << " )."
<< endl;
int i;
for ( i = 0 ; i <= 4 ; i++ )
{
b = b1[ i ];
cout << " The bit in position "
<< i << " is " << b << ".\n";
}
}
Output
The initialized bitset<5> b1( 2 ) is: ( 00110 ).
The bit in position 0 is 0.
The bit in position 1 is 1.
The bit in position 2 is 1.
The bit in position 3 is 0.
The bit in position 4 is 0.
Requirements
Header: <bitset>
Namespace: std