What steps will reproduce the problem? 1. invoke getPercentSet, linking fails

What is the expected output? What do you see instead? I'm expecting all of the functions in Image.h to be implemented in Image.mm

What version of the product are you using? On what operating system? svn revision 16

Please provide any additional information below. I'm completely new to C/Obj-C/XCode/iPhone, so this may be my issue. I see there are a handful of functions not implemented in Image.mm including getPercentSet.

怎么不能下载了啊？