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== Environment variables == | |||
Application built with Foundation will recognize the following environment variables | |||
{| class="wikitable" | |||
|- | |||
! Name !! Purpose | |||
|- | |||
| NSDebugEnabled || Enable generic debugging. Application-defined behavior. | |||
|- | |||
| NSHangOnUncaughtException || Hang on uncaught exception instead of crash. | |||
|- | |||
| NSObjCMessageLoggingEnabled || Useless on iPhoneOS. | |||
|- | |||
| NSZombieEnabled<ref name="tn">http://developer.apple.com/mac/library/technotes/tn2004/tn2124.html#SECFOUNDATION</ref><ref>http://www.cocoadev.com/index.pl?NSZombieEnabled</ref><br />NSDeallocateZombies<ref name="tn"/> || Use "zombies" for easier detection on misusing deallocated objects. | |||
|- | |||
| NSEnableAutoreleasePool<ref name="tn"/><br />NSAutoreleaseHighWaterMark<ref name="tn"/><br />NSAutoreleaseHighWaterResolution<ref name="tn"/><br /> NSAutoreleaseFreedObjectCheckEnabled<ref name="tn"/> || Autorelease pool debugging. | |||
|- | |||
| NSUnbufferedIO<ref>http://lists.apple.com/archives/cocoa-dev/2002/Oct/msg00665.html</ref> || Use unbuffered IO stream. | |||
|- | |||
| NSWarnAboutOldStyleArchiverMethods || Warn about old style (non-keyed) archiver methods. | |||
|- | |||
| TMPDIR<br />NEXT_ROOT || Some methods depend on these environment variables. | |||
|} | |||
== References == | |||
<references /> | |||
{{Navbox Classes}} | {{Navbox Classes}} | ||
{{Navbox Frameworks}} | {{Navbox Frameworks}} |
Revision as of 18:07, 28 November 2009
Foundation.framework | |
Public Framework | |
---|---|
Availabile | 1.0 – present |
Class Prefix | NS |
Headers | [headers.cynder.me] |
This is the basic Objective-C-based framework, used by everything. Provides NSString, NSDictionary, NSArray, ... It provides many classes that wrap CoreFoundation classes, but also provides unique functionality above and beyond that.
Mac OS X classes that are undocumented on the iPhoneOS
There are several classes that are present on both Mac OS X and iPhoneOS, but the corresponding documentation are not found on the iPhoneOS.
Class | Possible reason for being undocumented |
---|---|
NSAffineTransform | CGAffineTransform is used instead. |
NSUnarchiver and NSArchiver | Deprecated — use NSKeyedUnarchiver and NSKeyedArchiver instead. |
NSPointerFunctions, NSHashTable and NSMapTable | No garbage collection on iPhoneOS. |
NSHost | Who knows? |
NSTask | SDK-compatible programs are not supposed to open other executables. |
NSPortMessage | SDK-compatible programs are not supposed to perform IPC. (Although NSMessagePort is documented.) |
NSProtocolChecker | Distributed objects are not available on the iPhoneOS. |
NSURLDownload | Who knows? (Note that NSURLDownload was not available.) |
Environment variables
Application built with Foundation will recognize the following environment variables
Name | Purpose |
---|---|
NSDebugEnabled | Enable generic debugging. Application-defined behavior. |
NSHangOnUncaughtException | Hang on uncaught exception instead of crash. |
NSObjCMessageLoggingEnabled | Useless on iPhoneOS. |
NSZombieEnabled[1][2] NSDeallocateZombies[1] |
Use "zombies" for easier detection on misusing deallocated objects. |
NSEnableAutoreleasePool[1] NSAutoreleaseHighWaterMark[1] NSAutoreleaseHighWaterResolution[1] NSAutoreleaseFreedObjectCheckEnabled[1] |
Autorelease pool debugging. |
NSUnbufferedIO[3] | Use unbuffered IO stream. |
NSWarnAboutOldStyleArchiverMethods | Warn about old style (non-keyed) archiver methods. |
TMPDIR NEXT_ROOT |
Some methods depend on these environment variables. |
References
|