C11 和 C++11 扩展和通用字符转义

C11和C++11扩展和通用字符转义

c
#include 
#define max(a, b) _Generic((a), \
    int: max_int, \
    float: max_float \
)(a, b)
int max_int(int a, int b) {
    return a > b ? a : b;
}
float max_float(float a, float b) {
    return a > b ? a : b;
}
int main() {
    printf("Max value: %d\n", max(10, 5));
    printf("Max value: %f\n", max(3.14, 2.71));
    return 0;
}

c
#include 
int main() {
    struct {
        int x;
        int y;
    } point;
    point.x = 10;
    point.y = 20;
    printf("Coordinates: (%d, %d)\n", point.x, point.y);
    return 0;
}

cpp
#include 
int main() {
    auto x = 10;
    auto y = 3.14;
    auto z = "Hello, World!";
    std::cout << "x: " << x << std::endl;
    std::cout << "y: " << y << std::endl;
    std::cout << "z: " << z << std::endl;
    return 0;
}

cpp
#include 
enum class Color : int {
    RED = 1,
    GREEN = 2,
    BLUE = 3
};
int main() {
    Color c = Color::GREEN;
    std::cout << "Color: " << static_cast(c) << std::endl;
    return 0;
}

cpp
#include 
int main() {
    std::cout << "Hello, \u4E16\u754C!" << std::endl;
    return 0;
}