49 Miscellaneous System Functions

This chapter describes miscellaneous system functions. The functions in this chapter are declared in the header files Crc.h, IntlMgr.h, and Localize.h.

Crc16CalcBlock

Purpose

Calculate the 16-bit CRC of a data block using the table lookup method.

Prototype

UInt16 Crc16CalcBlock (const void *bufP, UInt16 count, UInt16 crc)

Parameters

bufP

Pointer to the data buffer.

count

Number of bytes in the buffer.

crc

Seed crc value.

Result

A 16-bit CRC for the data buffer.

IntlGetRoutineAddress

Purpose

Return the address of an international manager or text manager function.

Prototype

void *IntlGetRoutineAddress (IntlSelector inSelector)

Parameters

-> inSelector

One of the routine selectors defined in IntlMgr.h.

Result

Returns the address of the corresponding function. Returns NULL if an invalid routine selector is passed.

Comments

Use this function for performance reasons. It returns the address of an international manager or text manager function. You can then use this address to call the function without having to go through the international manager's trap dispatch table. This function is mostly useful for optimizing the performance of text manager routines that are called in a tight loop.

Compatibility

Implemented only if International Feature Set is present.

LocGetNumberSeparators

Purpose

Get localized number separators.

Prototype

void LocGetNumberSeparators (NumberFormatType numberFormat, Char *thousandSeparator, Char *decimalSeparator)

Parameters

numberFormat

The format to use

thousandSeparator

Return a localized thousand separator here (allocate 1 char).

decimalSeparator

Return a localized decimal separator here (allocate 1 char).

Result

Returns nothing.

Compatibility

Implemented only if 2.0 New Feature Set is present.

See Also

StrLocalizeNumber, StrDelocalizeNumber, "Localized Applications" in the Palm OS Programmer's Companion