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doc: developer: Add a note about reserved system name space

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Diego Biurrun 2013-02-11 18:53:33 +01:00
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doc/developer.texi
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@ -200,6 +200,14 @@ For externally visible symbols, each library has its own prefix. Check
the existing code and choose names accordingly. the existing code and choose names accordingly.
@end itemize @end itemize
Furthermore, name space reserved for the system should not be invaded.
Identifiers ending in @code{_t} are reserved by
@url{http://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html#tag_02_02_02, POSIX}.
Also avoid names starting with @code{__} or @code{_} followed by an uppercase
letter as they are reserved by the C standard. Names starting with @code{_}
are reserved at the file level and may not be used for externally visible
symbols. If in doubt, just avoid names starting with @code{_} altogether.
@subsection Miscellaneous conventions @subsection Miscellaneous conventions
@itemize @bullet @itemize @bullet
@item @item