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Full Discussion: Purpose of empty Class
Top Forums Programming Purpose of empty Class Post 302228554 by sank on Monday 25th of August 2008 03:39:03 AM
Old 08-25-2008
It is used as a place holder in the initial phase of development.
I think you should look at the C++ annotations for the more detailed explanation as to why the above class should be valid.
 

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note(4) 							   File Formats 							   note(4)

NAME
note - specify legal annotations SYNOPSIS
/usr/lib/note DESCRIPTION
Each file in this directory contains the NOTE (also _NOTE) annotations legal for a single tool. The name of the file, by convention, should be the tool vendor's stock name, followed by a hyphen, followed by the tool name. For example, for Sun's lock_lint tool the filename should be SUNW-lock_lint. The file should contain the names of the annotations understood by the tool, one per line. For example, if a tool understands the follow- ing annotations: NOTE(NOT_REACHED) NOTE(MUTEX_PROTECTS_DATA(list_lock, list_head)) then its file in /usr/lib/note should contain the entries: NOT_REACHED MUTEX_PROTECTS_DATA Blank lines, and lines beginning with a pound (#), are ignored. While /usr/lib/note is the default directory tools search for such files, they can be made to search other directories instead simply by setting environment variable NOTEPATH to contain the paths, separated by colons, of directories to be searched, e.g., /usr/mytool/note:/usr/lib/note. USAGE
These files are used by such tools whenever they encounter NOTEs they do not understand. If a file in /usr/lib/note contains the annota- tion, then it is valid. If no such file contains the annotation, then the tool should issue a warning complaining that it might be invalid. ENVIRONMENT VARIABLES
NOTEPATH specify paths to be searched for annotation files. Paths are separated by colons (":"). SEE ALSO
NOTE(3EXT) SunOS 5.10 17 Jan 1995 note(4)
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