char8_t and char16_t are dynamic in size?

Here is what I know:

• UTF-8 is a variable-length character encoding standard used for electronic communication.
  (https://en.wikipedia.org/wiki/UTF-8)
• Likewise, UTF-16 is a variable-length character encoding.

Here is what I wonder:

• Are char8_t and char16_t in C++ are dynamic in size too (to fit in the generic behaviour of UTF-8 and UTF-16) ?
• Will it ever happen that when I assign it a "special" value, it will automatically expand its own size to match?

>Solution :

char8_t and char16_t are dynamic in size?

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No.

Are char8_t and char16_t in C++ are dynamic in size too (to fit in the generic behaviour of UTF-8 and UTF-16) ?

No.

Will it ever happen that when I assign it a "special" value, it will automatically expand its own size to match?

No.