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例子一、十进制转换二进制

// bitset_bitset.cpp
// compile with: /EHsc
#include <bitset>
#include <iostream>

int main( )
{
    // Using the default constructor
    using namespace std;

    // Using the second member function
    bitset<20> b1 ( 5 );
    cout << "The set of bits in bitset<5> b1( 5 ) is: ( "
        << b1 << " )." << endl;

}

例子二、二进制转换十进制

#include <bitset>
#include <iostream>

void main()
{
    using namespace std;
    string bitval5 ("11110011011");
    int length = strlen("11110011011");
    bitset<11> b5 ( bitval5);
    cout << b5 << endl;
    cout << b5.to_ulong( ) << endl;
}

例子三、支持指针
#include <bitset>
#include <iostream>

void main()
{
    using namespace std;
    char p[] = "11110011011";

    bitset<50> b5 ( p);
    cout << b5 << endl;
    cout << b5.to_ulong( ) << endl;
}