Char (C++)

C++ char is guaranteed to use exactly 1 byte of memory and it stores a single ASCII character, although storage of a part of the multipart character is also possible under specific conditions.

Character constant must use single quotes and it is considered to be enumerable (thus you can use characters in constructs like switch).

Other C++ datatypes of the same size

 * signed char
 * unsigned char

Other C++ data types storing symbols

 * char16_t no less than 16 bits, no less than char
 * char32_t no less than 32 bits, no less than char16_t
 * wchar_t whatever the largest block of addressable memory happens to be on the system