implement optimizations

src/commonMain/kotlin/com/infendro/bytes/uint/Copy.kt

@@ -0,0 +1,59 @@
+package com.infendro.bytes.uint
+
+import com.infendro.bytes.ByteOrder
+import com.infendro.bytes.ByteOrder.BIG_ENDIAN
+import com.infendro.bytes.ByteOrder.LITTLE_ENDIAN
+
+fun UInt.copyInto(
+    destination: UByteArray,
+    destinationOffset: Int = 0,
+    order: ByteOrder = BIG_ENDIAN,
+) {
+    require(destinationOffset in 0..(destination.size - 4))
+
+    when (order) {
+        BIG_ENDIAN -> {
+            destination[destinationOffset] = (this shr 24).toUByte()
+            destination[destinationOffset + 1] = (this shr 16).toUByte()
+            destination[destinationOffset + 2] = (this shr 8).toUByte()
+            destination[destinationOffset + 3] = this.toUByte()
+        }
+        LITTLE_ENDIAN -> {
+            destination[destinationOffset] = this.toUByte()
+            destination[destinationOffset + 1] = (this shr 8).toUByte()
+            destination[destinationOffset + 2] = (this shr 16).toUByte()
+            destination[destinationOffset + 3] = (this shr 24).toUByte()
+        }
+    }
+}
+
+fun UInt.copyInto(
+    destination: ByteArray,
+    destinationOffset: Int = 0,
+    order: ByteOrder = BIG_ENDIAN,
+) = copyInto(destination.asUByteArray(), destinationOffset, order)
+
+fun UIntArray.copyInto(
+    destination: UByteArray,
+    destinationOffset: Int = 0,
+    startIndex: Int = 0,
+    endIndex: Int = size,
+    order: ByteOrder = BIG_ENDIAN,
+) {
+    val length = endIndex - startIndex
+    require(length >= 0)
+    require(startIndex in 0..(size - length))
+    require(destinationOffset in 0..(destination.size - (length * 4)))
+
+    repeat(length) { i ->
+        this[startIndex + i].copyInto(destination, destinationOffset + (i * 4), order)
+    }
+}
+
+fun UIntArray.copyInto(
+    destination: ByteArray,
+    destinationOffset: Int = 0,
+    startIndex: Int = 0,
+    endIndex: Int = size,
+    order: ByteOrder = BIG_ENDIAN,
+) = copyInto(destination.asUByteArray(), destinationOffset, startIndex, endIndex, order)