尝试在异构向量上定义"rect2"-like函数

#include <variant>
#include <iostream>

// 定义一个可以存储整数或浮点数的类型
using Coordinate = std::variant<int, float>;

// 定义一个点结构体
struct Point {
    Coordinate x;
    Coordinate y;
};

// 定义一个矩形结构体
struct Rect2 {
    Point bottomLeft;
    Point topRight;
};

// 打印矩形信息的函数
void printRect(const Rect2& rect) {
    std::cout << "Bottom Left: (" 
              << (std::get<int>(rect.bottomLeft.x) ? std::get<int>(rect.bottomLeft.x) : std::get<float>(rect.bottomLeft.x))
              << ", " 
              << (std::get<int>(rect.bottomLeft.y) ? std::get<int>(rect.bottomLeft.y) : std::get<float>(rect.bottomLeft.y))
              << "), Top Right: (" 
              << (std::get<int>(rect.topRight.x) ? std::get<int>(rect.topRight.x) : std::get<float>(rect.topRight.x))
              << ", " 
              << (std::get<int>(rect.topRight.y) ? std::get<int>(rect.topRight.y) : std::get<float>(rect.topRight.y))
              << ")\n";
}

int main() {
    Rect2 rect;
    rect.bottomLeft = {1, 2};
    rect.topRight = {3.5f, 4.5f};

    printRect(rect);

    return 0;
}