home
> prog
>> freecpp
>>> mutable

Mutable Keyword

See 7.1.1 "Storage class specifiers" [dcl.stc] of the C++ standard.

Also see Concrete const and abstract const @ corfield.org.

> mutable.cpp:

struct A
{
  A()
    : a_(0)
  { }

  inline void a(int a) const
  {
    a_ = a;
  }

 private:
  mutable int a_;
};


int main()
{
  const A a;
  a.a(0);

  return 0;
}