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Go Up Character sets and C++ When to use char for numbers How cin/cout treat char vs int Character literals are char (in C++) cout.put() — output exactly one character You can do integer arithmetic on char Escape sequences Universal Character Names (UCNs) char is not guaranteed to be signed or unsigned

char

represents a character (letters, digits, punctuation) or a small number
can be signed or unsigned (based on the implementation)
can be 8-bit, 16-bit, or 32-bit (based on the implementation)
on most systems it fits in 1 byte (8 bits)