Подстелили соломку против ведроида с его неожиданным 16-ти разрядным char.
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petravВ С++20 добавляется тип char8_t и это не псевдоним к char.

А ещё в C++11 добавились char16_t и char32_t. Комитет просто решил докончить картину:
char16_t - type for UTF-16 character representation, required to be large enough
to represent any UTF-16 code unit (16 bits). It has the same size, signedness, and
alignment as std::uint_least16_t, but is a distinct type.
char32_t - type for UTF-32 character representation, required to be large enough to
represent any UTF-32 code unit (32 bits). It has the same size, signedness, and alignment
as std::uint_least32_t, but is a distinct type.

(since C++11)

char8_t - type for UTF-8 character representation, required to be large enough to
represent any UTF-8 code unit (8 bits). It has the same size, signedness, and alignment as
unsigned char (and therefore, the same size and alignment as char and signed char), but is
a distinct type.
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