usecrate::{constants::MAX_PRECISION_U32, Decimal}; use alloc::string::String; use core::fmt;
/// Error type for the library. #[derive(Clone, Debug, PartialEq)] pubenum Error { /// A generic error from Rust Decimal with the `String` containing more information as to what /// went wrong. /// /// This is a legacy/deprecated error type retained for backwards compatibility.
ErrorString(String), /// The value provided exceeds `Decimal::MAX`.
ExceedsMaximumPossibleValue, /// The value provided is less than `Decimal::MIN`.
LessThanMinimumPossibleValue, /// An underflow is when there are more fractional digits than can be represented within `Decimal`.
Underflow, /// The scale provided exceeds the maximum scale that `Decimal` can represent.
ScaleExceedsMaximumPrecision(u32), /// Represents a failure to convert to/from `Decimal` to the specified type. This is typically /// due to type constraints (e.g. `Decimal::MAX` cannot be converted into `i32`).
ConversionTo(String),
}
impl<S> From<S> for Error where
S: Into<String>,
{ #[inline] fn from(from: S) -> Self { Self::ErrorString(from.into())
}
}
#[cfg(feature = "std")] impl std::error::Error for Error {}
impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { Self::ErrorString(ref err) => f.pad(err), Self::ExceedsMaximumPossibleValue => {
write!(f, "Number exceeds maximum value that can be represented.")
} Self::LessThanMinimumPossibleValue => {
write!(f, "Number less than minimum value that can be represented.")
} Self::Underflow => {
write!(f, "Number has a high precision that can not be represented.")
} Self::ScaleExceedsMaximumPrecision(ref scale) => {
write!(
f, "Scale exceeds the maximum precision allowed: {} > {}",
scale, MAX_PRECISION_U32
)
} Self::ConversionTo(ref type_name) => {
write!(f, "Error while converting to {}", type_name)
}
}
}
}
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-06-18)
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