2 points
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Data after dst+n is unchanged.
Sure but that means the part before that is garbage because you have a null terminated string without terminator.
Or at least that’s how I see it. If your intention isn’t to start and end with a null-terminated string you should be using memcpy. Let us not talk about situations where CHAR_BIT != 8
that’s not POSIX anyway.
Even better, just avoid doing string manipulation in C.
1 point