C++ Tutorial => signed

Example

A keyword that is part of certain integer type names.

When used alone, int is implied, so that signed, signed int, and int are the same type.
When combined with char, yields the type signed char, which is a different type from char, even if char is also signed. signed char has a range that includes at least -127 to +127, inclusive.
When combined with short, long, or long long, it is redundant, since those types are already signed.
signed cannot be combined with bool, wchar_t, char16_t, or char32_t.

Example:

signed char celsius_temperature;
std::cin >> celsius_temperature;
if (celsius_temperature < -35) {
    std::cout << "cold day, eh?\n";
}

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