I am fairly new to python. I have tried to define a class, I then want to create an instance from a file, then refer to specific pieces of it, but cannot seem to. This is Python 3.3.0
Here's the class....
class Teams():
def __init__(self, ID =…
Possible Duplicate:
Operator overloading
The member access operator -> can be overloaded to return a pointer to a data member, or some other variable.
Where is this feature used ?
What coding problems does it solve or alternately, what does it…
I have problems accessing _maxx, it says: ./ScoreBoard.hpp:20:38: error: member access into incomplete type 'WINDOW' (aka '_win_st')
mvwprintw(score_win, 0, score_win->_maxx - 10, "%11llu",…
I have a custom list class capable of storing recursive lists. There is a json file that is parsed during runtime which will contain information about what functions to call on what lists. I am using nlohmann::json library
For example:
class…
Turns out I don't really understand const.. So I have this (minimized) code sample. When I try to call a function which has access to members of a const class object (-> GetData()) I get the following error:
Error (gcc 11.2):
:129:28: error:…
I am trying to overload the ostream << operator for class List
class Node
{
public:
int data;
Node *next;
};
class List
{
private:
Node *head;
public:
List() : head(NULL) {}
void insert(int d, int index){ ... }
...}
To my…
This code is written in C. The first line of Node_reset() function occurs an error. (Structure array is allocated dynamically in main function.) I think there's something wrong in member-access of Node_reset(), also Create() might occur same kind of…
Suppose I have a base class that is an abstract interface, and two derived classes, which inherit a certain state from the base class. I want to change which derived class I'm using at run-time, but I want to preserve the shared state.
class…
let's have an example program:
struct Example
{
int* pointer;
Example(int* p) : pointer(p) {}
};
int main()
{
int var = 30;
const Example object(&var);
object.pointer = &var; // error
*object.pointer = var;
}
I do know why…
I am trying to overload an operator for a class:
#include
using namespace std;
class Complex{
float re, im;
public:
Complex(float x = 0, float y = 0) : re(x), im(y) { }
friend Complex operator*(float k, Complex c);…
when I execute the following code I get an error message for this line scanf("%s",A.(T+i)->CNE)
error message : expected identifier before '(' token|
can I know what is the problem? thanks in advance.
typedef struct date
{
int day;
int…
There is following c++ raw code:
template
class A {
private:
// here I want to access B::SomeStruct to create SomeStruct field in class A
};
template
class B {
private:
template
friend class A;
struct…
I want an specific behaviour to my classes access, and although there are workarounds and I can handle the situation without achieving that specific behaviour, I was finally wondering if its even possible to achieve that in c#.
So I have 3 classes…
Again reading C++ primer 5 ed. by lipmann now I've read about Member access operators overloading. Everything is clear to me except:
struct A
{
int& operator* () {return *p;}
void foo()const{cout << "A::foo()\n";}
int* p = new…
I just discovered that it's apparently not possible to declare a public array in a VBA class while it is fine to declare it private.
I am wondering if this is has a technical reason or if this is a design choice on Microsoft's part.
Either…
