C. Foundation Framework Headers

Following is a list of the standard Foundation framework header files distributed with Mac OS X v 10.2. These files can be found in the directory /System/Library/Frameworks/Foundation.framework/headers. Those header files marked with an asterisk (*) are not part of the standard GNUStep release. Note that GNUStep has its own extensions to the Foundation with filenames that begin with GS. These are not listed in this table.

It's useful just to read the list to see the types of capabilities supported by Foundation. Remember, you don't want to reinvent the wheel. Therefore, whenever you want to design a new class, see if there's one that already exists that fits the bill. If not, see whether you can subclass or make a composite class from one of the Foundation classes. That's part of the power of object-oriented programming.

Consult the Resources in Appendix E, “Resources,” to obtain more information about the Foundation framework.