How to implement Nested Class Constructor in Source file - c++

Question

I have a nested class called cell in my main class something.
I c
class Something{
class Cell
{
public:
int get_row_Number();
void set_row_Number(int set);
char get_position_Letter();
static void set_position_Letter(char set);
void set_whohasit(char set);
char get_whohasit();
Cell(int row,char letter,char whohasit);
private:
char position_Letter;
int row_Number;
char whohasit;
};
};
I wanna implement nested class constructor in .cpp file
Something::Cell Cell(int row,char letter,char whohasit){
Something::Cell::set_position_Letter(letter);
Something::Cell::set_row_Number(row);
Something::Cell::set_whohasit(whohasit);
}
But it is wrong. I assumed correct would be Something::Cell::Something::Cell at first but i don't think thats true either.

Answer 1

You are almost there. It's as simple as:
Something::Cell::Cell(int row,char letter,char whohasit){
Something::Cell::set_position_Letter(letter);
Something::Cell::set_row_Number(row);
Something::Cell::set_whohasit(whohasit);
}
But actually, I would strongly recommend you use initializers, rather than constructing the members uninitialized, and then assigning to them:
Something::Cell::Cell(int row, char letter, char whohasit)
:position_Letter(letter)
,row_Number(row)
,whohasit(whohasit)
{}

Answer 2

You need to make your inner class public, and the method set_Position_Letter cannot be static, because char position_Letter is not static (here is the header):
class Something
{
public:
class Cell {
public:
int get_row_Number();
void set_row_Number(int set);
char get_position_Letter();
void set_position_Letter(char set);
void set_whohasit(char set);
char get_whohasit();
Cell(int row,char letter,char whohasit);
private:
char position_Letter;
int row_Number;
char whohasit;
};
};
This is the cpp:
Something::Cell::Cell(int row, char letter, char whohasit) {
set_position_Letter(letter);
set_row_Number(row);
set_whohasit(whohasit);
}
void Something::Cell::set_position_Letter(char set) {
this->position_Letter = set;
}
void Something::Cell::set_whohasit(char set) {
this->whohasit = set;
}
void Something::Cell::set_row_Number(int set) {
this->row_Number = set;
}