how to allocate array of channels in go

Question

Sorry for the novice syntax question.

How do how create an array of channels in go?

  var c0 chan int = make(chan int);
  var c1 chan int = make(chan int);
  var c2 chan int = make(chan int);
  var c3 chan int = make(chan int);
  var c4 chan int = make(chan int);

That is, replacing the above five lines in one array of channels of size 5?

Many thanks.

Answer 1

Should be var chans [5]chan int

Answer 2

The statement var chans [5]chan int would allocate an array of size 5, but all the channels would be nil.

One way would be to use a slice literal:

var chans = []chan int {
   make(chan int),
   make(chan int),
   make(chan int),
   make(chan int),
   make(chan int),
}

If you don't want to repeat yourself, you would have to iterate over it and initialize each element:

var chans [5]chan int
for i := range chans {
   chans[i] = make(chan int)
}