来自应用密码学书籍的这段 c 代码将无法编译
int LFSR () {
static unsigned long ShiftRegister = 1;
/* Anything but 0. */
ShiftRegister = ((((ShiftRegister >> 31)
^ (ShiftRegister >> 6)
^ (ShiftRegister >> 4)
^ (ShiftRegister >> 2)
^ (ShiftRegister >> 1)
^ ShiftRegister))
& 0×00000001)
<< 31)
| (ShiftRegister >> 1) ;
return ShiftRegister & 0×00000001;
}
并且没有明显的错误