Apple Newton Utilities User's Guide download pdf (Page 891)

Utility Functions 26

This chapter provides a listing of a number of utility functions documented in the

“Utility Functions Reference” in the Newton Programmer’s Reference. The

following groups of functions are included:

■ Object system

■ Array and sorted array

■ Integer Math

■ Floating point math

■ Control of ﬂoating point math

■ Exception handling

■ Message sending and deferred message sending

■ Data extraction

■ Data stufﬁng

■ Getting and Setting Global Variables

■ Miscellaneous

Four of the functions described in the Object system section are designed to clone,

or copy, objects. These functions each behave slightly differently. Table 26-1

summarizes their actions. The “Recurs” column indicates if references within the

object are copied. The “Follows magic pointers” column indicates if objects

referenced through magic pointers are copied. The “Ensures object is internal”

column indicates if the function ensures that all parts of the object exist in internal

RAM or ROM. The “Copies object” column indicates if the object is copied.

Apple Newton Utilities User's Guide Page 891