Talking about alignment

MemoryAlignment.cpp

int main(int argc, const char * argv[])
{

//#pragma pack(push)
#pragma pack(4)
        struct align_test
        {
            char x; //1 byte
            int y;  //4 bytes
            short int z;  //2bytes
            
        };
#pragma pack()
    
        struct align_test test;
        printf("test size is %d\n", sizeof(test)); // Size should be 1+4+2 but it will print 4+4+4=12
        printf("x size is %d\n", sizeof(test.x));
        printf("y size is %d\n", sizeof(test.y));
        printf("z size is %d\n", sizeof(test.z));
        printf("address of test is %p\n", &test);
        printf("address of x is %p\n", &test.x);
        printf("address of y is %p\n", &test.y);
        printf("address of z is %p\n", &test.z);
    
    return 0;
}