Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 8 - QuickDraw GX Mathematics / QuickDraw GX Mathematics Reference

Number-Conversion Macros / Rounding, Truncating, and Square Root Operations

FixedTruncate

You can use the FixedTruncate macro to obtain an integer that is the greatest integer that is not greater than the given Fixed number.

#define FixedTruncate(a) ((short)((Fixed)(a) >> 16))

a

The number that is to be truncated.

macro result

The largest integer that is not greater than the Fixed number.