为什么我不能获取包含多个元素的结构体中某些元素的地址?[副本]

为什么我不能记下元素的地址 a 和 c 在这个 struct ?

#include <iostream>

struct Silly {
    char a;
    unsigned short b;
    char c;
    double d;
};

int main() {

    auto p_silly = new Silly[2];

    std::cout << "address of a: " << &(p_silly[0].a) << std::endl;
    std::cout << "address of b: " << &(p_silly[0].b) << std::endl;
    std::cout << "address of c: " << &(p_silly[0].c) << std::endl;
    std::cout << "address of d: " << &(p_silly[0].d) << std::endl;

    delete[] p_silly;
}

输出:

address of a: 
address of b: 0x61620d70c6c2
address of c: 
address of d: 0x61620d70c6c8

编译依据:

g++ main.cpp -o main -std=c++23