What are the locations of directories that can be recorded on iOS?

I could not find information in the Apple iOS SDK about which directories are writable and which are not for your application.

I suppose NSCachesDirectoryboth NSDocumentDirectoryare writable, but what about others like NSApplicationSupportDirectoryor NSTemporaryDirectory.

Where can I find a complete list of shared directories with their purpose, and if they will be writable or not by my application?

I managed to find possible values ​​for the listing NSSearchPathDirectory, but they do not contain any information about their purpose and are more important if you can write to them.