ch6ex2

README

= Exercise 6.2
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Define a variadic `(*IntSet).AddAll(...int)` method that allows a list of
values to be added, such as `s.AddAll(1, 2, 3)`.

== Tests

For this test, we leverage the `TestIntSet` function we made for exercise 6.1.
For that reason we keep the code for `Add`, `Remove`, `Clear` and `String`
as used by the test.

For this exercise we also define the equivalent `RemoveAll` method
that takes a list of values to remove from the set.

We can then call `AddAll` and `RemoveAll`
instead of calling `Add` and `Remove` in a loop
to add and remove more than one value.

Documentation

Index

• type IntSet
  • func (s *IntSet) Add(x int)
  • func (s *IntSet) AddAll(xs ...int)
  • func (s *IntSet) Clear()
  • func (s *IntSet) Remove(x int)
  • func (s *IntSet) RemoveAll(xs ...int)
  • func (s *IntSet) String() string

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)

AddAll adds the non-negative values xs to the set

func (*IntSet) Clear

func (s *IntSet) Clear()

Clear removes all elements from the set

func (*IntSet) Remove

func (s *IntSet) Remove(x int)

Remove the non-negative value x from the set.

func (*IntSet) RemoveAll

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

RemoveAll removes all the non-negative values xs from the set

func (*IntSet) String

func (s *IntSet) String() string

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