2/ ( x -- y )
Factor handbook » The language » Numbers » Arithmetic » Bitwise arithmetic

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Vocabulary
math

Inputs

x	an integer

Outputs

y	an integer

Word description
Shifts x to the right by one bit.

Examples

USING: math prettyprint ; 14 2/ .
7

USING: math prettyprint ; 17 2/ .
8

USING: math prettyprint ; -17 2/ .
-9

Notes
This word is not equivalent to 2 / or 2 /i; the name is historic and originates from the Forth programming language.

Definition

IN: math

: 2/ ( x -- y ) -1 shift ; inline