help for inheritance problem

[David]

Hi all,

I am new in c++. I met such a problem:

class base{

protected:
int a[10];
int b;
public:
.....
}

if I have two child classes,
class child1ublic base
{
}
class child2ublic base
{
}

I want to do:
(1) change the values of a[] in child1, for example set a[0]=1;
(2) change the values of a[] in child 2, for example set a[1]=2 and I
can get the value a[0]

how I can do? Thanks a lot

 

[Victor Bazarov]

I am new in c++. I met such a problem:

class base{

protected:
int a[10];
int b;
public:
.....
}

if I have two child classes,
class child1ublic base
{
}
class child2ublic base
{
}

I want to do:
(1) change the values of a[] in child1, for example set a[0]=1;
(2) change the values of a[] in child 2, for example set a[1]=2 and I
can get the value a[0]

how I can do? Thanks a lot

Just use the syntax you typed in right here. a[0]=1; a[1]=2; and
so on. Also read the FAQ 5.8.

V

 

[Nick Keighley]

I am new in c++. I met such a problem:

class base{

protected:
int a[10];
int b;
public:
.....
}

if I have two child classes,
class child1ublic base
{
}
class child2ublic base
{
}

I want to do:
(1) change the values of a[] in child1, for example set a[0]=1;
(2) change the values of a[] in child 2, for example set a[1]=2 and I
can get the value a[0]

how I can do? Thanks a lot

why not-

class child1ublic base
{
public:
void update()
{ a[0] = 1; }
}