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.. Copyright David Abrahams 2006. 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)
Link Your Program to a Boost Library
====================================
To demonstrate linking with a Boost binary library, we'll use the
following simple program that extracts the subject lines from
emails. It uses the Boost.Regex_ library, which has a
separately-compiled binary component. ::
#include <boost/regex.hpp>
#include <iostream>
#include <string>
int main()
{
std::string line;
boost::regex pat( "^Subject: (Re: |Aw: )*(.*)" );
while (std::cin)
{
std::getline(std::cin, line);
boost::smatch matches;
if (boost::regex_match(line, matches, pat))
std::cout << matches[2] << std::endl;
}
}
There are two main challenges associated with linking:
1. Tool configuration, e.g. choosing command-line options or IDE
build settings.
2. Identifying the library binary, among all the build variants,
whose compile configuration is compatible with the rest of your
project.
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