See C + + (such as static variables, static functions) with Assembly vision

Turn from: http://blog.csdn.net/feixiaoxing/article/details/6783482

Friends who have seen the design pattern know that we can not do without the static function of the class when we design the single piece mode. Unlike the member variables of a class, the static variables of a class belong to all class object data, and the static functions of a class are owned by all class functions, unlike the member functions of a class. This sentence read to think of a bit of a mouthful, but it does not matter, we can use a piece of code to explain the problem.

(1) Static variables

As usual, we start with a preliminary definition of the class, as follows:

View Plain class Employee {Public:employee () {} ~employee () {} static int value;       }; So, the value that appears here is shared, and we can look at the relevant function code:

View Plain 67:   int employee::value = 0;   68:   69:    void process ()    70:   {   00401240   push         ebp   00401241   mov          ebp,esp   00401243   push         0FFh   00401245   push         offset __ehhandler$?process@ @YAXXZ   (0041f469)    0040124a   mov          eax,fs:[00000000]   00401250    push        eax   00401251   mov          dword ptr fs:[0],esp   00401258    sub         esp,48h   0040125b   push         ebx