Infendro/bytes.kt
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fix ByteArray to numeric conversion
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Infendro
2026-01-15 16:18:44 +01:00
parent dddf2bab93
commit d7e65ccc32
4 changed files with 50 additions and 26 deletions
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2
README.md
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@@ -12,6 +12,6 @@ repositories {
} }
commonMain.dependencies { commonMain.dependencies {
implementation("com.infendro:bytes:1.3.1") implementation("com.infendro:bytes:1.3.2")
} }
``` ```

2
build.gradle.kts
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@@ -5,7 +5,7 @@ import com.infendro.plugin.token
import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
group = "com.infendro" group = "com.infendro"
version = "1.3.1" version = "1.3.2"
plugins { plugins {
alias(libs.plugins.infendro) alias(libs.plugins.infendro)

36
src/commonMain/kotlin/com/infendro/bytes/bytearray/Conversion.kt
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@@ -9,12 +9,16 @@ fun ByteArray.toInt(startIndex: Int = 0, order: ByteOrder = BIG_ENDIAN): Int {
return when (order) { return when (order) {
BIG_ENDIAN -> { BIG_ENDIAN -> {
(this[startIndex].toInt() shl 24) or (this[startIndex + 1].toInt() shl 16) or ((this[startIndex].toInt() and 0xFF) shl 24) or
(this[startIndex + 2].toInt() shl 8) or this[startIndex + 3].toInt() ((this[startIndex + 1].toInt() and 0xFF) shl 16) or
((this[startIndex + 2].toInt() and 0xFF) shl 8) or
(this[startIndex + 3].toInt() and 0xFF)
} }
LITTLE_ENDIAN -> { LITTLE_ENDIAN -> {
this[startIndex].toInt() or (this[startIndex + 1].toInt() shl 8) or (this[startIndex].toInt() and 0xFF) or
(this[startIndex + 2].toInt() shl 16) or (this[startIndex + 3].toInt() shl 24) ((this[startIndex + 1].toInt() and 0xFF) shl 8) or
((this[startIndex + 2].toInt() and 0xFF) shl 16) or
((this[startIndex + 3].toInt() and 0xFF) shl 24)
} }
} }
} }
@@ -33,16 +37,24 @@ fun ByteArray.toLong(startIndex: Int = 0, order: ByteOrder = BIG_ENDIAN): Long {
return when (order) { return when (order) {
BIG_ENDIAN -> { BIG_ENDIAN -> {
(this[startIndex].toLong() shl 56) or (this[startIndex + 1].toLong() shl 48) or ((this[startIndex].toLong() and 0xFFL) shl 56) or
(this[startIndex + 2].toLong() shl 40) or (this[startIndex + 3].toLong() shl 32) or ((this[startIndex + 1].toLong() and 0xFFL) shl 48) or
(this[startIndex + 4].toLong() shl 24) or (this[startIndex + 5].toLong() shl 16) or ((this[startIndex + 2].toLong() and 0xFFL) shl 40) or
(this[startIndex + 6].toLong() shl 8) or this[startIndex + 7].toLong() ((this[startIndex + 3].toLong() and 0xFFL) shl 32) or
((this[startIndex + 4].toLong() and 0xFFL) shl 24) or
((this[startIndex + 5].toLong() and 0xFFL) shl 16) or
((this[startIndex + 6].toLong() and 0xFFL) shl 8) or
(this[startIndex + 7].toLong() and 0xFFL)
} }
LITTLE_ENDIAN -> { LITTLE_ENDIAN -> {
this[startIndex].toLong() or (this[startIndex + 1].toLong() shl 8) or (this[startIndex].toLong() and 0xFFL) or
(this[startIndex + 2].toLong() shl 16) or (this[startIndex + 3].toLong() shl 24) or ((this[startIndex + 1].toLong() and 0xFFL) shl 8) or
(this[startIndex + 4].toLong() shl 32) or (this[startIndex + 5].toLong() shl 40) or ((this[startIndex + 2].toLong() and 0xFFL) shl 16) or
(this[startIndex + 6].toLong() shl 48) or (this[startIndex + 7].toLong() shl 56) ((this[startIndex + 3].toLong() and 0xFFL) shl 24) or
((this[startIndex + 4].toLong() and 0xFFL) shl 32) or
((this[startIndex + 5].toLong() and 0xFFL) shl 40) or
((this[startIndex + 6].toLong() and 0xFFL) shl 48) or
((this[startIndex + 7].toLong() and 0xFFL) shl 56)
} }
} }
} }

36
src/commonMain/kotlin/com/infendro/bytes/bytearray/Copy.kt
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@@ -21,16 +21,20 @@ fun ByteArray.copyInto(
repeat(length / 4) { i -> repeat(length / 4) { i ->
val offset = startIndex + (i * 4) val offset = startIndex + (i * 4)
destination[destinationOffset + i] = destination[destinationOffset + i] =
(this[offset].toInt() shl 24) or (this[offset + 1].toInt() shl 16) or ((this[offset].toInt() and 0xFF) shl 24) or
(this[offset + 2].toInt() shl 8) or this[offset + 3].toInt() ((this[offset + 1].toInt() and 0xFF) shl 16) or
((this[offset + 2].toInt() and 0xFF) shl 8) or
(this[offset + 3].toInt() and 0xFF)
} }
} }
LITTLE_ENDIAN -> { LITTLE_ENDIAN -> {
repeat(length / 4) { i -> repeat(length / 4) { i ->
val offset = startIndex + (i * 4) val offset = startIndex + (i * 4)
destination[destinationOffset + i] = destination[destinationOffset + i] =
this[offset].toInt() or (this[offset + 1].toInt() shl 8) or (this[offset].toInt() and 0xFF) or
(this[offset + 2].toInt() shl 16) or (this[offset + 3].toInt() shl 24) ((this[offset + 1].toInt() and 0xFF) shl 8) or
((this[offset + 2].toInt() and 0xFF) shl 16) or
((this[offset + 3].toInt() and 0xFF) shl 24)
} }
} }
} }
@@ -61,20 +65,28 @@ fun ByteArray.copyInto(
repeat(length / 8) { i -> repeat(length / 8) { i ->
val offset = startIndex + (i * 8) val offset = startIndex + (i * 8)
destination[destinationOffset + i] = destination[destinationOffset + i] =
(this[offset].toLong() shl 56) or (this[offset + 1].toLong() shl 48) or ((this[offset].toLong() and 0xFFL) shl 56) or
(this[offset + 2].toLong() shl 40) or (this[offset + 3].toLong() shl 32) or ((this[offset + 1].toLong() and 0xFFL) shl 48) or
(this[offset + 4].toLong() shl 24) or (this[offset + 5].toLong() shl 16) or ((this[offset + 2].toLong() and 0xFFL) shl 40) or
(this[offset + 6].toLong() shl 8) or this[offset + 7].toLong() ((this[offset + 3].toLong() and 0xFFL) shl 32) or
((this[offset + 4].toLong() and 0xFFL) shl 24) or
((this[offset + 5].toLong() and 0xFFL) shl 16) or
((this[offset + 6].toLong() and 0xFFL) shl 8) or
(this[offset + 7].toLong() and 0xFFL)
} }
} }
LITTLE_ENDIAN -> { LITTLE_ENDIAN -> {
repeat(length / 8) { i -> repeat(length / 8) { i ->
val offset = startIndex + (i * 8) val offset = startIndex + (i * 8)
destination[destinationOffset + i] = destination[destinationOffset + i] =
this[offset].toLong() or (this[offset + 1].toLong() shl 8) or (this[offset].toLong() and 0xFFL) or
(this[offset + 2].toLong() shl 16) or (this[offset + 3].toLong() shl 24) or ((this[offset + 1].toLong() and 0xFFL) shl 8) or
(this[offset + 4].toLong() shl 32) or (this[offset + 5].toLong() shl 40) or ((this[offset + 2].toLong() and 0xFFL) shl 16) or
(this[offset + 6].toLong() shl 48) or (this[offset + 7].toLong() shl 56) ((this[offset + 3].toLong() and 0xFFL) shl 24) or
((this[offset + 4].toLong() and 0xFFL) shl 32) or
((this[offset + 5].toLong() and 0xFFL) shl 40) or
((this[offset + 6].toLong() and 0xFFL) shl 48) or
((this[offset + 7].toLong() and 0xFFL) shl 56)
} }
} }
} }