Memory size end

    long abc = 0x12345678;
    
    abc >>= 8;
    printf("%x\n", (unsigned char)abc);
    abc >>= 8;
    printf("%x\n", (unsigned char)abc);
    abc >>= 8;
    printf("%x\n", (unsigned char)abc);

 

 

 0x12345678

The memory distribution on the small end machine is 78 56 34 12

When moving to the right, the memory window moves to the left , For example, moving once becomes 56 34 12 00

Integer value bit 0X00123456

But when you think of him as char when , He only looks at the first byte , That is to say 0X56 了 .