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Provide Double and Float bit conversion functions as extensions in JS and Common

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Instance extension: Double/Float.toBits/toRawBits
Companion extension: Double/Float.Companion.fromBits

#KT-18264 Fixed
This commit is contained in:
Ilya Gorbunov
2017-08-31 07:05:35 +03:00
parent 044ccf1532
commit 132f2f88c2
6 changed files with 184 additions and 13 deletions
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libraries/stdlib/common/src/kotlin/KotlinH.kt
+42
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@@ -90,6 +90,48 @@ expect fun Float.isInfinite(): Boolean
expect fun Double.isFinite(): Boolean
expect fun Float.isFinite(): Boolean
/**
* Returns a bit representation of the specified floating-point value as [Long]
* according to the IEEE 754 floating-point "double format" bit layout.
*/
@SinceKotlin("1.2")
public expect fun Double.toBits(): Long
/**
* Returns a bit representation of the specified floating-point value as [Long]
* according to the IEEE 754 floating-point "double format" bit layout,
* preserving `NaN` values exact layout.
*/
@SinceKotlin("1.2")
public expect fun Double.toRawBits(): Long
/**
* Returns the [Double] value corresponding to a given bit representation.
*/
@SinceKotlin("1.2")
public expect fun Double.Companion.fromBits(bits: Long): Double
/**
* Returns a bit representation of the specified floating-point value as [Int]
* according to the IEEE 754 floating-point "single format" bit layout.
*/
@SinceKotlin("1.2")
public expect fun Float.toBits(): Int
/**
* Returns a bit representation of the specified floating-point value as [Int]
* according to the IEEE 754 floating-point "single format" bit layout,
* preserving `NaN` values exact layout.
*/
@SinceKotlin("1.2")
public expect fun Float.toRawBits(): Int
/**
* Returns the [Float] value corresponding to a given bit representation.
*/
@SinceKotlin("1.2")
public expect fun Float.Companion.fromBits(bits: Int): Float
// From concurrent.kt