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Improve documentation of GS_API_VERSION

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@23234 72102866-910b-0410-8b05-ffd578937521
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Richard Frith-MacDonald 2006-08-09 13:21:22 +00:00
parent 52ec9c92ae
commit 06d6fd8a98
1 changed files with 9 additions and 0 deletions
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9
Headers/Foundation/NSObject.h
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@ -72,6 +72,15 @@
* </p>
* <p>Also see <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* </p>
* <p>NB. If you are changing the API (eg adding a new feature) you need
* to control the visibility io the new header file code using<br />
* <code>#if GS_API_VERSION(ADD,GS_API_LATEST)</code><br />
* where <code>ADD</code> is the version number of the next minor
* release after the most recent one.<br />
* As a general principle you should <em>not</em> change the API with
* changing subminor version numbers ... as that tends to confuse
* people (though Apple has sometimes done it).
* </p>
*/
#define GS_API_VERSION(ADD,REM) \
(!defined(GS_GNUSTEP_V) || (GS_GNUSTEP_V >= ADD && GS_GNUSTEP_V < REM))