kotlin-stdlib/kotlin.ranges/downTo

downTo

infix fun Int.downTo(to: Byte): IntProgression(source)
infix fun Long.downTo(to: Byte): LongProgression(source)
infix fun Byte.downTo(to: Byte): IntProgression(source)
infix fun Short.downTo(to: Byte): IntProgression(source)
infix fun Char.downTo(to: Char): CharProgression(source)
infix fun Int.downTo(to: Int): IntProgression(source)
infix fun Long.downTo(to: Int): LongProgression(source)
infix fun Byte.downTo(to: Int): IntProgression(source)
infix fun Short.downTo(to: Int): IntProgression(source)
infix fun Int.downTo(to: Long): LongProgression(source)
infix fun Long.downTo(to: Long): LongProgression(source)
infix fun Byte.downTo(to: Long): LongProgression(source)
infix fun Short.downTo(to: Long): LongProgression(source)
infix fun Int.downTo(to: Short): IntProgression(source)
infix fun Long.downTo(to: Short): LongProgression(source)
infix fun Byte.downTo(to: Short): IntProgression(source)
infix fun Short.downTo(to: Short): IntProgression(source)

Returns a progression from this value down to the specified to value with the step -1.

The to value should be less than or equal to this value. If the to value is greater than this value the returned progression is empty.

Since Kotlin

1.0
infix fun UByte.downTo(to: UByte): UIntProgression(source)
infix fun UInt.downTo(to: UInt): UIntProgression(source)
infix fun ULong.downTo(to: ULong): ULongProgression(source)
infix fun UShort.downTo(to: UShort): UIntProgression(source)

Returns a progression from this value down to the specified to value with the step -1.

The to value should be less than or equal to this value. If the to value is greater than this value the returned progression is empty.

Since Kotlin

1.5