Function: floor

floor is a function defined in floatfns.c.

Signature

(floor ARG &optional DIVISOR)

Documentation

Return the largest integer no greater than ARG.

This rounds the value towards -inf. With optional DIVISOR, return the largest integer no greater than ARG/DIVISOR.

Other relevant functions are documented in the number group.

Probably introduced at or before Emacs version 19.20.

Shortdoc

;; number
(floor 1.2)
    => 1
  (floor -1.2)
    => -2
  (floor 5.4 2)
    => 2

Source Code

// Defined in /usr/src/emacs/src/floatfns.c
{
  return rounding_driver (arg, divisor, floor, mpz_fdiv_q, floor2);
}