C++ Function Return Value Quick Facts: Character Type Meanings

#C Function return value quick check: Character type meaning

String type

Standard C string typeUnicode string type, using 16-bit charactersUnicode string type, using 32-bit characters C-style string type, null-terminated C-style read-only string Type

Type	Meaning
##std::string
std::u16string
std::u32string
char*
const char*

Character type

##Typecharsigned charunsigned charwchar_t

Meaning
Single 8-bit character
Single 8-bit signed character
Single 8-bit unsigned character
Single wide character, size and encoding depend on implementation

Actual combat Case

The following function gets the name of a student and returns the name:

std::string get_name() {
    std::cout << "Enter your name: ";
    std::string name;
    std::getline(std::cin, name);
    return name;
}

This function uses the

std::string

return type because we need to return a Variable length string.

Usage Example

int main() {
    std::string name = get_name();
    std::cout << "Hello, " << name << "!" << std::endl;
}

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