c++primer code...

c++primer 的代码库：

http://silassewell.googlecode.com/svn/trunk/2009/08/16/cpp-primer-plus/07/16/ruler.cpp

电子书：收费的，可以免费预览部分页面

http://my.safaribooksonline.com/9780131388215/326#X2ludGVybmFsX0ZsYXNoUmVhZGVyP3htbGlkPTk3ODAxMzEzODgyMTUvMzI1

google book 有部分预览，但不能copy：

http://books.google.com.hk/books?id=zuyAIZ9ZIskC&pg=PA287&lpg=PA287&dq=using+recursion+to+subdivide+a+ruler&source=bl&ots=mbyXSWw1z2&sig=sDHxDsFblrUsBOS640iYKIsNg0Y&hl=zh-CN&ei=9xFZTJbwDcLBceDW1cIH&sa=X&oi=book_result&ct=result&resnum=2&ved=0CCAQ6AEwAQ#v=onepage&q=using%20recursion%20to%20subdivide%20a%20ruler&f=false