divide function for Swift's argument labels

01-example.cpp

#include <iostream>

typedef struct {
    int quotient;
    int remainder;
} DivideResult;

DivideResult divide(int dividend, int divisor) {
    return (DivideResult){.quotient=dividend/divisor, .remainder=dividend%divisor};
}

int main(int argc, const char *argv[]) {
    DivideResult result = divide(22, 7);
    std::cout << "22/7=" << result.quotient << "..." << result.remainder << std::endl;
    return 0;
}

02-bad-example.swift

func divide(dividend: Int, divisor: Int) -> (quotient: Int, remainder: Int) {
    return (dividend/divisor, dividend%divisor)
}
let result = divide(dividend: 22, divisor: 7)
print("22/7=\(result.quotient)...\(result.remainder)")

03-example.swift

func divide(_ dividend: Int, by divisor: Int) -> (quotient: Int, remainder: Int) {
    return (dividend/divisor, dividend%divisor)
}
let result = divide(22, by: 7)
print("22/7=\(result.quotient)...\(result.remainder)")