C++之Boost使用
1. Get & Build & Install Boostdownload boost from http://www.boost.org/
进入boost目录，使用命令：
./bootstrap.sh --prefix=path/to/installation
./b2 install
如此之后：
leave Boost binaries in the lib/ subdirectory of your installation prefix. You will also find a copy of the Boost headers in theinclude/ subdirectory of the installation prefix, so you can henceforth use that directory as an #include path in place of the Boost root directory.
2. Use Boost
1) Header-Only Libraries
Most Boost libraries are header-only: they consist entirely of header files containing templates and inline functions, and require no separately-compiled library binaries or special treatment when linking.
比如下面这个例子，使用的就是header-only的library.
#include <boost/lambda/lambda.hpp>#include <iostream>#include <iterator>#include <algorithm>int main(){ using namespace boost::lambda; typedef std::istream_iterator<int> in; std::for_each( in(std::cin), in(), std::cout << (_1 * 3) << " " );}
编译：
c++ -I path/to/boost_1_47_0 example.cpp -o examplethen：
echo 1 2 3 | ./example
2) Separately-Compiled Binary
#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 << std::endl; }}
编译：
g++ -I /home/bin.jinb/usr/local/boost/include/ test.cc -o test\-L /home/bin.jinb/usr/local/boost/lib/ -lboost_regex
或者：
g++ -I /home/bin.jinb/usr/local/boost/include/ test.cc -o test \ /home/bin.jinb/usr/local/boost/lib/libboost_regex.a
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