kotlin.ranges.RangesJVM.kt Maven / Gradle / Ivy
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/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
@file:kotlin.jvm.JvmMultifileClass
@file:kotlin.jvm.JvmName("RangesKt")
package kotlin.ranges
import kotlin.*
/**
* A closed range of values of type `Float`.
*
* Numbers are compared with the ends of this range according to IEEE-754.
*/
private class ClosedFloatRange(
start: Float,
endInclusive: Float
) : ClosedFloatingPointRange {
private val _start = start
private val _endInclusive = endInclusive
override val start: Float get() = _start
override val endInclusive: Float get() = _endInclusive
override fun lessThanOrEquals(a: Float, b: Float): Boolean = a <= b
override fun contains(value: Float): Boolean = value >= _start && value <= _endInclusive
override fun isEmpty(): Boolean = !(_start <= _endInclusive)
override fun equals(other: Any?): Boolean {
return other is ClosedFloatRange && (isEmpty() && other.isEmpty() ||
_start == other._start && _endInclusive == other._endInclusive)
}
override fun hashCode(): Int {
return if (isEmpty()) -1 else 31 * _start.hashCode() + _endInclusive.hashCode()
}
override fun toString(): String = "$_start..$_endInclusive"
}
/**
* Creates a range from this [Float] value to the specified [that] value.
*
* Numbers are compared with the ends of this range according to IEEE-754.
* @sample samples.ranges.Ranges.rangeFromFloat
*/
@SinceKotlin("1.1")
public operator fun Float.rangeTo(that: Float): ClosedFloatingPointRange = ClosedFloatRange(this, that)