A member variable is a member of a type and belongs to that type's state. (Contrast with a "local variable", defined inside a method.)
Questions tagged [member-variables]
169 questions
0
votes
4 answers
Accessing "this" Type JavaScript Variables From Other Functions
I have an event firing and even though it's inside of the function from which I'm trying to access variables, I get Uncaught TypeError: Cannot read property '...' of undefined. So, let's say:
( function($) {
$.fn.main = function() {
…
Gabriel Ryan Nahmias
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-1
votes
1 answer
How does ones code access member variables in a different stack frame
class foo {
public:
foo() : foo_member1(1)
int foo_member1;
void do_something() {foo_member1++;}
}
int main(){
foo my_foo;
my_foo.do_something();
}
Where is everything stored in the above example code? It was something I…
Thomas Mathews
- 43
- 4
-1
votes
1 answer
Class objects member variables won't change when function is called
My problem is that I can not change the class members variable value, I tried everything that has come to my mind
So here is the following code that is involved:
if(player.getCollisionObject().isColliding(platform1))
{
…
muhm
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- 2
-1
votes
1 answer
Why are my Class member variables going missing in Python?
I made a class. I think that I create a member variable named "myTup" in the initializer/constructor. I try to make sure that I actually did create myTup by making the following call right at the very end of the initializer:
assert(hasattr(self,…
Toothpick Anemone
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-1
votes
1 answer
Can't assign an member variable address to a pointer
Layer::Layer(int LayerSize, Layer PrevLayer){
Size=LayerSize;
Column=(Neuron*)malloc(Size);
for(int i=0;i
-1
votes
1 answer
#define conflict with variable in .dll header file
I am using Unreal Engine 4 with some external .dll libraries. I have encountered a problem where "PI" is defined in unreal engine core code as "3.141592..." like this:
#define PI (3.1415926535897932f)
However, in the header file…
MrCravon
- 53
- 4
-1
votes
1 answer
How do I assign a member variable from command-line argument in C++?
Is there a way to assign a class member from a command line argument so that ALL objects of that class have that value (by default)? I want it by default because a member function creates a new object in the Foo class, and I don't want to make Var a…
asrjarratt
- 314
- 6
- 17
-1
votes
1 answer
What are the importance of prefixes in member Variables?
Okay, so I am going through the Android development tutorial book: The Big Nerd ranch and I am on chapter two where it tells you that you need to have certain prefixes and not have certain prefixes before getters and setters.
"What is the point of…
entropy
- 311
- 1
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- 15
-1
votes
2 answers
Segmentation fault when a member variable of type std::map is not declared in all compilation units
When I declare a member variable of type std::map in one compilation unit but not the other, I get a segmentation fault when the containing object is being destructed. When I do the same with std::vector, it works just fine.
It was definitely a bug…
fhd
- 3,998
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- 23
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-2
votes
1 answer
Shuffle only one variable of objects in arraylist
I have an arraylist filled with objects of a class. These objects have variables like x,y and a imagePath. I only want to shuffle the imagepath variables in this arraylist between the objects. So x- and y variables of the objects should stay the…
user7432713
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-2
votes
1 answer
Under these declarations, what types are the following expressions and are they correct?
struct place
{
char name[80+1];
double latitude;
double longitude;
};
struct node
{
struct place city;
struct node *next;
};
struct node *head;
head
head -> city
head -> next
head -> city -> name
head -> next…
Jorts12
- 37
- 3
-2
votes
1 answer
Javascript Haxe member variables Objects
Javascript:
function TeamSelection(player_id)
{
var playerInfo = new Object();
playerInfo["info_" + player_id];
}
Haxe:
hey I tried to define object like so:
class TeamSelection
{
var playerInfo : Map;
public…
Nevo David
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- 7
-3
votes
1 answer
C++ Initializing Member Variables that are Containers of Object Pointers
I apologize to ask this as I'm sure it's been answered elsewhere. I am trying to initialize a container of object pointers within the constructor of my class. The container is an array template, the class for the constructor is A and the object type…
-3
votes
1 answer
Are there any kind of references to a member variable?
I've tried to do a reference to a member variable, and understood that it does not work. Are there any way to do this? If not, is there a way to not constantly write "(* this)." ?
#include
#include
class Test
{
private:
…
Fenix FVE
- 53
- 4
-3
votes
2 answers
In C++ why is it that int variable can be declared as private data member of a class, but not string variable?
In C++ the following header file is legal
#ifndef SAMPLE_H_
#define SAMPLE_H_
class Sample {
private:
int number;
};
#endif
But the following header file is illegal
#ifndef
#define
class Sample {
private:
string…
Histar
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