on-bits ( m -- n )
Factor handbook » The language » Numbers » Arithmetic » Bitwise arithmetic » Additional bitwise arithmetic

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Vocabulary
math.bitwise

Inputs

m	an integer

Outputs

n	an integer

Word description
Returns an integer with m bits set.

Examples

USING: math.bitwise kernel prettyprint ; 6 on-bits .h
0x3f

USING: math.bitwise kernel prettyprint ; 64 on-bits .h
0xffffffffffffffff

Definition

USING: kernel math ;

IN: math.bitwise

: on-bits ( m -- n ) dup 0 <= [ drop 0 ] [ 2^ 1 - ] if ; inline