countset

README

countset — efficient binary encoding of generic countable set (map[K]int).

Documentation

Overview

Example (CustomType)

package main

import (
	"fmt"
	"maps"

	"github.com/ndx-technologies/countset"
)

func main() {
	type ID uint64
	id := ID(1234)

	m := map[ID]int{
		id: -11,
	}

	b, _ := countset.MarshalBinary(m)
	m2, _ := countset.UnmarshalBinary[ID, int](b)

	fmt.Println(maps.Equal(m, m2), m[id])
}

Output:

true -11

Example (Uint64)

package main

import (
	"fmt"
	"maps"

	"github.com/ndx-technologies/countset"
)

func main() {
	m := map[uint64]int{
		1234: -11,
	}

	b, _ := countset.MarshalBinary(m)
	m2, _ := countset.UnmarshalBinary[uint64, int](b)

	fmt.Println(maps.Equal(m, m2), m[1234])
}

Output:

true -11

Index

• Variables
• func AppendBinary[K ~uint64, V ~int](b []byte, mp map[K]V) ([]byte, error)
• func MarshalBinary[K ~uint64, V ~int](mp map[K]V) ([]byte, error)
• func UnmarshalBinary[K ~uint64, V ~int](data []byte) (map[K]V, error)

Examples

• Package (CustomType)
• Package (Uint64)

Variables

var ByteOrder = binary.LittleEndian

Functions

func AppendBinary

func AppendBinary[K ~uint64, V ~int](b []byte, mp map[K]V) ([]byte, error)

func MarshalBinary

func MarshalBinary[K ~uint64, V ~int](mp map[K]V) ([]byte, error)

func UnmarshalBinary

func UnmarshalBinary[K ~uint64, V ~int](data []byte) (map[K]V, error)