How to determine the Boost version on a system?

Question

Is there a quick way to determine the version of the Boost C++ libraries on a system?

Answer 1

Tested with boost 1.51.0:

std::cout << "Using Boost "     
          << BOOST_VERSION / 100000     << "."  // major version
          << BOOST_VERSION / 100 % 1000 << "."  // minor version
          << BOOST_VERSION % 100                // patch level
          << std::endl;

Output: Using Boost 1.51.0

Tested with boost versions 1.51.0 to 1.65.0