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3 Commits
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12ba3bf530
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b2d8048713
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c366c79d4c
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@@ -1,6 +1,6 @@
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# encoding-kt
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# encoding.kt
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`encoding-kt` is a Kotlin Multiplatform library that provides common `ByteArray` encodings.
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`encoding.kt` is a Kotlin Multiplatform library that provides common `ByteArray` encodings.
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Supported encodings:
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- Base2 (binary)
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@@ -1,5 +1,5 @@
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[versions]
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infendro = "1.0.0"
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infendro = "1.1.0"
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kotlin = "2.3.0"
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[plugins]
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@@ -2,7 +2,7 @@ package com.infendro.encoding
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import com.infendro.encoding.exception.IllegalByteException
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import com.infendro.encoding.util.align
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import com.infendro.encoding.util.divCeil
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import com.infendro.encoding.util.ceilDiv
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import com.infendro.encoding.util.lcm
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import com.infendro.encoding.util.log2
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@@ -17,8 +17,8 @@ class StreamEncoding internal constructor(
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override fun encode(bytes: ByteArray): ByteArray {
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val size = when (padding) {
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null -> (bytes.size * 8).divCeil(bits)
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else -> (bytes.size * 8).divCeil(bits).align(block)
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null -> (bytes.size * 8).ceilDiv(bits)
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else -> (bytes.size * 8).ceilDiv(bits).align(block)
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}
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val encoded = ByteArray(size)
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var i = 0
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@@ -62,7 +62,7 @@ internal class BigInt private constructor(
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get() = BigInt(intArrayOf(0))
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fun from(bytes: ByteArray): BigInt {
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val words = IntArray(bytes.size.divCeil(4))
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val words = IntArray(bytes.size.ceilDiv(4))
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for (i in bytes.indices) {
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val (wi, bi) = (bytes.lastIndex - i).divRem(4)
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words[wi] = words[wi] or ((bytes[i].toInt() and 0xFF) shl (bi * 8))
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@@ -2,11 +2,11 @@ package com.infendro.encoding.util
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import kotlin.math.log2
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internal fun Int.divCeil(n: Int): Int =
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internal fun Int.ceilDiv(n: Int): Int =
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(this + n - 1) / n
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internal fun Int.align(n: Int): Int =
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divCeil(n) * n
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ceilDiv(n) * n
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internal fun log2(value: Int): Double =
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log2(value.toDouble())
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