50 lines
1.0 KiB
Kotlin
50 lines
1.0 KiB
Kotlin
package com.infendro.bytearray
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import com.infendro.bytearray.ByteOrder.BIG_ENDIAN
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fun Long.toByteArray(
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order: ByteOrder = BIG_ENDIAN,
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): ByteArray {
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val bytes = ByteArray(8) { i ->
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val offset = (7 - i) * 8
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(this ushr offset).toByte()
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}
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return order.normalize(bytes)
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}
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fun ByteArray.toLong(
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order: ByteOrder = BIG_ENDIAN,
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): Long {
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if (size != 8) throw Exception()
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val bytes = order.normalize(this)
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return bytes.fold(0L) { acc, byte ->
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(acc shl 8) or (byte.toLong() and 0xFFL)
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}
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}
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fun Collection<Byte>.toLong(
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order: ByteOrder = BIG_ENDIAN,
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): Long {
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return toByteArray()
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.toLong(order)
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}
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fun ByteArray.toLongArray(
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order: ByteOrder = BIG_ENDIAN,
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): LongArray {
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if (size % 8 != 0) throw Exception()
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return toList()
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.chunked(8)
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.map { it.toLong(order) }
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.toLongArray()
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}
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fun Collection<Byte>.toLongArray(
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order: ByteOrder = BIG_ENDIAN,
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): LongArray {
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return toByteArray()
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.toLongArray(order)
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}
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