decimal-scaled 0.2.3

Const-generic base-10 fixed-point decimals (D9/D18/D38/D76/D153/D307) with integer-only transcendentals correctly rounded to within 0.5 ULP — exact at the type's last representable place. Deterministic across every platform; no_std-friendly.
Documentation 
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//! Macro-generated radix formatters for the raw storage of a decimal
//! type.
//!
//! These format the underlying integer (= `value * 10^SCALE`), not the
//! decimal value, so they're useful for inspecting bit patterns. All
//! delegate to the storage type's primitive formatter so format flags
//! (`#`, `0`, width, precision) are forwarded unchanged.

/// Emits `LowerHex`, `UpperHex`, `Octal`, `Binary` for the raw storage
/// of `$Type<SCALE>`.
macro_rules! decl_decimal_storage_formatters {
    ($Type:ident) => {
        impl<const SCALE: u32> ::core::fmt::LowerHex for $Type<SCALE> {
            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
                ::core::fmt::LowerHex::fmt(&self.0, f)
            }
        }
        impl<const SCALE: u32> ::core::fmt::UpperHex for $Type<SCALE> {
            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
                ::core::fmt::UpperHex::fmt(&self.0, f)
            }
        }
        impl<const SCALE: u32> ::core::fmt::Octal for $Type<SCALE> {
            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
                ::core::fmt::Octal::fmt(&self.0, f)
            }
        }
        impl<const SCALE: u32> ::core::fmt::Binary for $Type<SCALE> {
            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
                ::core::fmt::Binary::fmt(&self.0, f)
            }
        }
    };
}

pub(crate) use decl_decimal_storage_formatters;