cpp-course/modules/03_functions/src/function_basics.cpp

#include "function_basics.hpp"

#include <ranges>

namespace functions {

auto square(const int value) -> int {
    return value * value;
}

void swap_integers(int& lhs, int& rhs) {
    const int tmp = lhs;
    lhs = rhs;
    rhs = tmp;
}

auto concatenate(const std::vector<std::string>& parts) -> std::string {
    return std::ranges::to<std::string>(std::views::join(parts));
}

void append_suffix(std::string& text, const std::string& suffix) {
    // The string is passed by reference, so it can have text appended
    text += suffix;
}

}  // namespace functions