Crate feldera_fxp 

Decimal arithmetic.

This crate primarily provides the Fixed type for decimal arithmetic with precision and scale supplied as type parameters. It also provides DynamicDecimal, which has 38 digits of precision and a dynamic scale. The latter is mainly provided for serialization and does not include much in the way of arithmetic.

Features

The following cargo features are provided:

• serde: Implements serde traits for serializing and deserializing Fixed and DynamicDecimal.

• rkyv: Implements rkyv traits for serializing and deserializing Fixed and DynamicDecimal.

• validation (depends on rkyv): Implements rkyv traits for validation.

• size_of: Implements size_of traits for measuring data sizes.

• dbsp (depends on serde, rkyv, and size_of): Implements DBSP traits for Fixed and DynamicDecimal.

Structs

DynamicDecimal

Decimal real number with 38 digits of precision and dynamic scale.

Fixed

Decimal real number with fixed precision and scale.

OutOfRange

Error returned for operations that would produce an out-of-range result.

UniformDecimal

Supports uniform sampling for DynamicDecimals with a specified scale.

Enums

ParseDecimalError

Error that can be returned when parsing Fixed or DynamicDecimal.

Functions

pow10

Returns 10**exponent.

Type Aliases

FixedInteger

A maximum-precision Fixed with no decimal places.