Crate ffl 

Fuchsia Fixed-Point Library (FFL)

FFL is a fixed-point arithmetic library ported from C++. It provides:

• Fixed: The primary fixed-point type, parameterized by the underlying integer type and fractional bit count.
• FastFixed: A wrapper type designed for high-performance arithmetic operations on 64-bit platforms, by saturating to 64-bit intermediates instead of standard 128-bit intermediates.
• ExponentialAverage: A utility for tracking exponential moving averages and variance using fixed-point values.
• Expression templates: Deferred-evaluation expression structures like expression::DivExpression and expression::MulExpression to maintain resolution and precision for division and multiplication operations until the result is converted to a concrete format.

Re-exports

pub use exponential_average::ExponentialAverage;

pub use expression::from_ratio;

pub use expression::to_resolution;

pub use fast::FastExpression;

pub use fast::FastFixed;

pub use fixed::Fixed;

pub use fixed::compare_fixed;

pub use string::Mode;

pub use string::String;

Modules

exponential_average

expression

fast

fixed

fixed_format

num_traits

string

Functions

from_raw

Creates a Fixed value from a raw underlying integer value.

round

Rounds the given fixed-point value to the nearest integer using round-half-to-even (convergent rounding).