popcount

package

v0.0.0-...-6fe4f4e Latest Latest Go to latest Published: May 11, 2024 License: MIT Imports: 1 Imported by: 0

README ¶

Exercise 9.2 (P271)

Rewrite the PopCount example from Section 2.6.2 so that it initializes the lookup table using sync.Once the first time it is needed. (Realistically, the cost of synchronization whould be prohibitive for a small and highly optimized function like PopCount)

Documentation ¶

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func PopCountLoop ¶

func PopCountLoop(x uint64) int

PopCountLoop returns the population count (number of set bits) of x by looping.

func PopCountTable ¶

func PopCountTable(x uint64) int

PopCountTable returns the population count (number of set bits) of x by table-lookup.

func PopCountTableSync ¶

func PopCountTableSync(x uint64) int

Types ¶

This section is empty.

Source Files ¶

View all Source files

popcount.go

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