`Array.range` throw `ArrayIndexOutOfBoundsException` if overflow. not consists with other collections

[xuwei-k]

Compiler version

• 2.13.18
• 3.3.7
• 3.7.4
• 3.8.0-RC5

Minimized code

//> using scala 3.8.0-RC5

object Main {
  def main(args: Array[String]): Unit = {
    println(List.range(2, 5, Int.MaxValue))
    println(Vector.range(2, 5, Int.MaxValue))
    println(Array.range(2, 5, Int.MaxValue))
  }
}

Output

List(2)
Vector(2)
[error] java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
[error] 	at scala.Array$.range(Array.scala:522)
[error] 	at Main$.main(Main.scala:7)
[error] 	at Main.main(Main.scala)

Expectation

same as other collection

Note

• scala3/library/src/scala/Array.scala

  Lines 508 to 527 in 32e416e

  	/** Returns an array containing equally spaced values in some integer interval.
  	*
  	* @param start the start value of the array
  	* @param end the end value of the array, exclusive (in other words, this is the first value '''not''' returned)
  	* @param step the increment value of the array (may not be zero)
  	* @return the array with values in `start, start + step, ...` up to, but excluding `end`
  	*/
  	def range(start: Int, end: Int, step: Int): Array[Int] = {
  	if (step == 0) throw new IllegalArgumentException("zero step")
  	val array = new Array[Int](immutable.Range.count(start, end, step, isInclusive = false))
  	var n = 0
  	var i = start
  	while (if (step < 0) end < i else i < end) {
  	array(n) = i
  	i += step
  	n += 1
  	}
  	array
  	}