Trait UncheckedLog10Floor

pub trait UncheckedLog10Floor {
    // Required method
    const fn unchecked_log10_floor(self) -> Self;
}

Returns the base-10 logarithm of self, rounded down to the nearest integer.

Panics

Panics if self is zero or negative.

Required Methods

const fn unchecked_log10_floor(self) -> Self

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl UncheckedLog10Floor for Dec19x19

Tests

check! ( [Dec19x19::unchecked_log10_floor, Dec19x19::checked_log10_floor] {
    (Dec19x19::MAX)   => Dec19x19!(19),
    (Dec19x19!(10.1)) => Dec19x19!(1),
    (Dec19x19!(10.0)) => Dec19x19!(1),
    (Dec19x19!(9.99)) => Dec19x19!(0),
    (Dec19x19!(1.17)) => Dec19x19!(0),
    (Dec19x19!(1.0))  => Dec19x19!(0),
    (Dec19x19!(0.9))  => Dec19x19!(-1),
    (Dec19x19!(0.11)) => Dec19x19!(-1),
    (Dec19x19!(0.1))  => Dec19x19!(-1),
    (Dec19x19!(0.09)) => Dec19x19!(-2),
    (-Dec19x19::SMALLEST_STEP) => FAIL,
});