Method getBit

structure/bitmap_1.go:333–340

Get the value of a specific bit, assuming the value is valid

(bitmap []byte, offset uint)

// Get the value of a specific bit, assuming the value is valid
func (b *BitMapStructure) getBit(bitmap []byte, offset uint) bool {
	index := offset / 8
	bit := uint(offset % 8)

	value := bitmap[index] & (1 << bit)

	return value > 0
}

// getBitmapFromDB retrieves data from the database. When isKeyCanNotExist is true, it returns an empty slice if the key doesn't exist instead of an error.
func (b *BitMapStructure) getBitmapFromDB(key string, isKeyCanNotExist bool) ([]byte, uint, error) {