is_leap_year

is_leap

Determine whether an input value is a leap year using the branchless approach
of jerichaux (2025). Method provided for both Dates and numeric values.
Numeric values first floored before the calculation is made.

A collection of utility functions for working with
Year Month Day objects. Includes functions for fast parsing of numeric
and character input based on algorithms described in Hinnant, H. (2021)
<https://howardhinnant.github.io/date_algorithms.html> as well as a branchless
calculation of leap years by Jerichaux (2025) <https://stackoverflow.com/a/79564914>.

Tim Taylor

fastymd

Fast Utilities for Year Month Day Objects

Howard Hinnant

jerichaux 

is_leap_year function

<dl><dt>x</dt>
<dd>An R object.</dd></dl>

Arguments

Is value a leap year? — is_leap_year

<dl>

<dt>x</dt>
<dd>An R object.</dd>

</dl>

is_leap_year: Is value a leap year?

Description

Usage

Value

Arguments

References