Struct Negative 

pub struct Negative;

Accepts strictly negative numbers (value < 0).

Examples

use type_lib::rules::Negative;
use type_lib::Validator;

assert!(Negative::validate(&-2).is_ok());
assert!(Negative::validate(&0).is_err());

Trait Implementations

impl Validator<f32> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &f32) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<f64> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &f64) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<i128> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &i128) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<i16> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &i16) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<i32> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &i32) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<i64> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &i64) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<i8> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &i8) -> Result<(), Self::Error>

Checks value against the rule.

impl Validator<isize> for Negative

type Error = ValidationError

The failure produced when a value violates the rule.

fn validate(value: &isize) -> Result<(), Self::Error>

Checks value against the rule.