MemoryBlock.MirrorBytesMBS(offsetByte as Integer = 0, lengthByte as Integer = -1)

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
method	MemoryBlock	MBS Util Plugin	7.1	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Mirrors the bytes in the given range.

e.g. "abcdefgh" in the memoryblock would give "hgfedcba"
This function is certainly not the fastest one, but faster than anything you can get written in Xojo.
And make sure the bounds are matched, because on memory access outside the valid ranges, the function will crash.
0 ≤ offsetByte < mem.size and 0 ≤ lengthByte ≤ mem.size - offsetByte

If lengthByte is -1, we query memoryblock for size. If size is unknown or negative, the function does nothing.