Enum ArithmeticError 

pub enum ArithmeticError {
    Overflow,
    Underflow,
    DivisionByZero,
    ScaleExceeded,
    InvalidInput,
}

All errors that can arise from fixed-point arithmetic in fermat-core.

Every fallible operation returns Result<_, ArithmeticError> instead of panicking, satisfying the sBPF requirement for panic-free on-chain programs.

Variants

Overflow

The result exceeded the representable range of i128.

Underflow

The result fell below the representable range of i128.

DivisionByZero

A division or modulo operation was attempted with a zero denominator.

ScaleExceeded

A scale value exceeded MAX_SCALE (28) was provided or computed.

InvalidInput

The input could not be parsed or is otherwise malformed (e.g. bad string).

Trait Implementations

impl Clone for ArithmeticError

fn clone(&self) -> ArithmeticError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArithmeticError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ArithmeticError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ArithmeticError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ArithmeticError

fn eq(&self, other: &ArithmeticError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ArithmeticError

impl Eq for ArithmeticError

impl StructuralPartialEq for ArithmeticError