const (C++) 

When modifying a data declaration, the const keyword specifies that the object or variable is not modifiable.

const declaration ;
member-function const ;

Remarks

When following a member function's parameter list, the const keyword specifies that the function does not modify the object for which it is invoked.

For more information on const, see the following topics:

• Constant Values

• Constant Member Functions

• const and volatile Pointers

• Type Qualifiers (C Language Reference)

• volatile

• #define.

See Also

Reference

C++ Keywords