C++ FAQ Celebrating Twenty-One Years of the C++ FAQ!!!
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Section 26:
[26.5] Okay, I could imagine a machine with 9-bit bytes. But surely not 16-bit bytes or 32-bit bytes, right?


I have heard of one implementation of C++ that has 64-bit "bytes." You read that right: a byte on that implementation has 64 bits. 64 bits per byte. 64. As in 8 times 8.

And yes, you're right, combining with the above would mean that a char on that implementation would have 64 bits.