Some little-known things of const

Some of the little-known things of const-Linux general technology-Linux technology and application information. The following is a detailed description. # Include
Using namespace std;

Int main ()
{
Const int k = 60000; // The const int type k cannot be changed

Int * lp; // declare an int-type pointer variable

Lp = (int *) & k; // force convert lp to k

* Lp = 50000; // assign values. Generally, assign values to k.

Cout < Cout <* lp < Cout <& k < Cout <


Return 0;
}



Running result:
0x22ff3c
50000
0x22ff3c
60000

The lp address and k address are the same.
However, the values are different. It is very strange to pass other tests. * lp is not lost. Just like the k value of a common variable, the original value remains unchanged.
By discussing with others, we all think that the compiler is a problem (both eclipse and vc ++ can be compiled)
I searched for half-day data yesterday and still thought that const could only be half-solution (to cope with general situations)