Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: Operating System Utilities /

Chapter 3 - Mathematical and Logical Utilities / Mathematical and Logical Utilities Reference

Testing and Setting Bits
This section describes the BitTst function and the BitSet and BitClr procedures. You can test a bit using BitTst and specify a bit's value using BitSet and BitClr. All three of these procedures use the reversed bit-numbering scheme described in the section "Reversed Bit-Numbering" on page 3-7.

Subtopics

BitTst

BitSet

BitClr