Perl has two types of strings. Strings of ≤8-bit values and strings of ≤32/64-bit values. If it uses the latter format to store your string of bytes, they will appears as if they have been UTF-8 encoded if you look at SvPVX.

In reply to Re^8: Interleaving bytes in a string quickly by ikegami
in thread Interleaving bytes in a string quickly by BrowserUk

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