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Answer Posted / roshanpr
mutable key word is used when u want to make any member
variable of a const object modifyable.
Basically when u make a object constant u cannot modify its
data members. But during the declaration of the class if a
data member is declared as mutable it can changed.
Class my
{
mutable int age;
public:
my(){age=0;}
void plusplus(int b)const
{
age+=b;
}
};
int main()
{
const my obj;
obj.plusplus(40);
}
| Is This Answer Correct ? | 41 Yes | 7 No |
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how can i access a direct (absolute, not the offset) memory
address?
here is what i tried:
wrote a program that ask's for an address from the user,
creates a FAR pointer to that adress and shows it. then the
user can increment/decrement the value in that address by
pressing p(inc+) and m(dec-).
NOW, i compiled that program and opened it twice (in 2
different windows) and gave twice the same address to it.
now look what happen - if i change the value in
one "window" of the program, it DOES NOT change in the
other! even if they point to the same address in the memory!
here is the code snippet:
//------------------------------------------------------
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