Trait bitintr::Popcnt

pub trait Popcnt {
    fn popcnt(self) -> Self;
}

Count bits set.

Required methods

fn popcnt(self) -> Self

Counts the bits that are set.

Keywords: Population count, count ones, Hamming weight, Sideways sum.

Instructions

• POPCNT:
  • Description: Population Count.
  • Architecture: x86.
  • Instruction set: ABM, SSE 4.2.
  • Registers: 16/32/64 bit.
• Note: Intel considers it part of SSE4.2 but advertises it with its own CPUID flag.

Example

assert_eq!(0b0101_1010u16.popcnt(), 4);

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Implementors

impl Popcnt for i8

fn popcnt(self) -> Self

impl Popcnt for i16

fn popcnt(self) -> Self

impl Popcnt for i32

fn popcnt(self) -> Self

impl Popcnt for i64

fn popcnt(self) -> Self

impl Popcnt for u8

fn popcnt(self) -> Self

impl Popcnt for u16

fn popcnt(self) -> Self

impl Popcnt for u32

fn popcnt(self) -> Self

impl Popcnt for u64

fn popcnt(self) -> Self

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