Differences with the legacy version

The 2002 document was intended to supercede the legacy "norme", first written in (??), and last updated in October, 2000.

It was based on the previous version, adding finer distinctions between requirements and recommendations, updating previous specifications and adding new ones.

Here is a summary of the major changes:

• Specification of the difference between "requirements" and "recommendations" was added.
• Indentation requirements were clarified.
• Header file specifications were clarified and updated to match modern conventions.
• The switch construct is now allowed under special circumstances.
• Prototyping specifications were clarified and detailed.
• Naming conventions were clarified.
• Declaration conventions were clarified and relaxed for some useful cases.
• Line counting of function bodies was relaxed. The limit on the number of function arguments was explained and relaxed.
• Comment specifications, including standard file headers, were clarified and detailed.
• Project layout specifications were added. Default Makefile rules and rule behaviors were updated to match modern conventions.
• Special specifications for C++ were added.

In addition to these changes, the structure of the standard itself has been rearranged, and an index was added.