The reason for the "ugly" definition of SScanF is that the Windows CRT does not have a vsscanf function making it difficult to add OS::SSprintF to platform.h.
Review URL: http://codereview.chromium.org/2988

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@350 ce2b1a6d-e550-0410-aec6-3dcde31c8c00