ch6ex4

README

= Exercise 6.4
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{badge-exercise}

Add a method `Elems` that returns a slice containing the elements of the set,
suitable for iterating over with a `range` loop.

Documentation

Index

• type IntSet
  • func (s *IntSet) Add(x int)
  • func (s *IntSet) AddAll(xs ...int)
  • func (s *IntSet) Elems() (elems []int)
  • func (s *IntSet) Len() int
  • func (s *IntSet) String() string

Examples

• IntSet.Elems

Types

type IntSet

type IntSet struct {
	// contains filtered or unexported fields
}

An IntSet is a set of small non-negative integers. Its zero value represents the empty set.

func (*IntSet) Add

func (s *IntSet) Add(x int)

Add the non-negative value x to the set

func (*IntSet) AddAll

func (s *IntSet) AddAll(xs ...int)

func (*IntSet) Elems

func (s *IntSet) Elems() (elems []int)

Elems returns a slice containing the elements of the set suitable for iterating over with a range loop

Example

v := new(IntSet)
v.AddAll(200, 3000, 1)
for _, e := range v.Elems() {
	fmt.Println(e)
}

Output:

1
200
3000

func (*IntSet) Len

func (s *IntSet) Len() int

Len returns the number of elements in the set

func (*IntSet) String

func (s *IntSet) String() string

String returns the set as a string of the form "{1 2 3}"