validators 0.21.1

This is a library for validating and modeling user input and this crate provides models, function, traits, errors and other dependencies used with the `validators-derive` crate.
Documentation 
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use core::fmt::{self, Display, Formatter};
use core::num::ParseIntError;

#[cfg(feature = "std")]
use std::error::Error;

#[derive(Debug, Clone)]
pub enum UnsignedIntegerError {
    ParseIntError(ParseIntError),
    TooLarge,
    TooSmall,
    Forbidden,
}

impl From<ParseIntError> for UnsignedIntegerError {
    #[inline]
    fn from(error: ParseIntError) -> Self {
        UnsignedIntegerError::ParseIntError(error)
    }
}

impl Display for UnsignedIntegerError {
    #[inline]
    fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> {
        match self {
            UnsignedIntegerError::ParseIntError(error) => Display::fmt(error, f),
            UnsignedIntegerError::TooLarge => f.write_str("integer is too large"),
            UnsignedIntegerError::TooSmall => f.write_str("integer is too small"),
            UnsignedIntegerError::Forbidden => f.write_str("integer is forbidden"),
        }
    }
}

#[cfg(feature = "std")]
impl Error for UnsignedIntegerError {}