dynamic_bitset/example/example1.cpp
Gennaro Prota 771e3d8779 dynamic_bitset documentation and examples:
Documentation:
    --------------

    * converted from HTML 4.01 Transitional to XHTML 1.1 (reason: the website
      uses already XHTML 1.0 Strict, and our page didn't validate as such, even
      though on the website a link to the W3C markup validation service is
      affixed)
    * removed some misleading sentences
    * referenced the source files of examples, so that they do not go out of
      sync again
    * clarified rationale section

    Example files:
    --------------

    * example 3 shows that stream extraction may expand the bitset
    * minor improvements to all examples


[SVN r47389]
2008-07-13 17:55:45 +00:00

36 lines
963 B
C++

// (C) Copyright Jeremy Siek 2001.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// An example of setting and reading some bits. Note that operator[]
// goes from the least-significant bit at 0 to the most significant
// bit at size()-1. The operator<< for dynamic_bitset prints the
// bitset from most-significant to least-significant, since that is
// the format most people are used to reading.
//
// The output is:
//
// 11001
// 10011
// ---------------------------------------------------------------------
#include <iostream>
#include <boost/dynamic_bitset.hpp>
int main()
{
boost::dynamic_bitset<> x(5); // all 0's by default
x[0] = 1;
x[1] = 1;
x[4] = 1;
for (boost::dynamic_bitset<>::size_type i = 0; i < x.size(); ++i)
std::cout << x[i];
std::cout << "\n";
std::cout << x << "\n";
return 0;
}