C/C++ :: Pass Value From Object To Array

Apr 16, 2014

I am trying to write a poker program. I created a class to create a deck of cards..and then shuffle the deck..Now I am trying to pass value from the deck to an array to deal a hand..so 5 cards to player1[] array.. I tried doing it directly such as.

for (int j = 0; j < 5; j++) {
getCard=deck[j].toString();
}

But I would get error such as [Error] no match for 'operator=' in 'player1[j] = deck[j].Card::toString()'

So then I tried using a pointer..

char *getCard;
getCard = new char;
for (int j = 0; j < 5; j++) {
getCard=deck[j].toString();
}

but I would get this error [Error] void value not ignored as it ought to be. So how can I pass a value from the object deck..to an array? or should I be doing it another way?..I tried to think of a way to do it via a function but really got hung up there..

here is full code

#include <stdlib.h>
#include <iostream>
#include <ctime>
#include <algorithm>
using namespace std;
const char* FaceString[13] = {"Ace", "2", "3", "4",
"5", "6", "7", "8",
"9", "10", "Jack", "Queen", "King"};

[Code] ....

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C++ :: Trying To Pass Array Of Object

Apr 24, 2013

I am trying to pass an array of objects however i m finding some problems.

pieces.h

Code: class Cpiece{
public:
Cpiece* board[8][8];// array of objects
virtual char getcolor() =0;
virtual char setcolor(char colour)=0;

[Code] .....

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Apr 12, 2013

i need to pass myboard.board (board is in the class Cboard and it is an array of int) to a function in a class called piece however this is troubling . i need to pass it as pointer os that i could change its value here under is my code.

main.cpp Code: #include<iostream>
#include"board.h"
#include "pieces.h"

[Code].....

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C++ :: Pass Class Object By Reference

Jun 25, 2013

I am having trouble working with third party dll's, libs and header files. I am trying to call a function.here is the function that is suppose to be called.

bool COAuthSDK::GetRequestToken(CClientDetails &objClientDetails)

it has this info of what it needs :

Name IN/OUT Description
m_environment IN Optional. Possible values are SANDBOX (default) and LIVE.
m_strConsumerKey IN OAuth consumer key provided by E*TRADE
m_strConsumerSecret IN OAuth consumer secret provided by E*TRADE
m_strToken OUT Returned by the function if successful
m_strTokenSecret OUT Returned by the function if successful
m_strCallback IN Optional; default value is "oob"

here is the COAuthSDK header

#ifndef _OAUTHSDK_H_INCLUDED_
#define _OAUTHSDK_H_INCLUDED_
#include "ETCOMMONCommonDefs.h"
#include "ETCOMMONOAuthHelper.h"
using namespace std;

[code].....

when I try to build the function it says that its in the dll's so I know I have to call it.here is the link to the build site if needed URL....

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C++ :: Pass Class Object By Reference?

Mar 17, 2014

I'm trying to pass a class object by reference.

total = mathfunction(i);
}
double mathfunction(retirement& j)
{
double R = 0.00, m = 0.00, r = 0.00, t = 0.00, totaled = 0.00,
numerator = 0.00, denom = 0.00, temp = 0.00;

[Code]....

I only tried to pass by reference because I figured passing by value would be a larger pain in the neck.

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Feb 25, 2014

I need to send same instance of object of a class in two function (Main function and thread function). The class is something like this:

//The class need to have constructor.
Class ABC {
public:
DWORD *IdG;
ABC(int number) {
IdG = new DWORD[number];
}
}obj(32);

The obj(32) is called in following two function. Function F1 is called using thread in main function.

void F1() {
obj.test;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
obj.test1;
_beginthread(F1,0,(void*)number);
}

The code works well when the object of class ABC is created as shown above. My problem is the value that is passed in the object ('32') is to be read from the file.

If I read the file and create object separately in Main function and function 'F1' then , function 'F1' is not executed.

How to create same instance of object for Main function and function 'F1' with value passed in the object taken from the file.

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Sep 18, 2014

I got base class called Statistic and inherited classes from it : lsp, cpu, memory. Those methods inheriting some of methods from Statistic and implement also theirself methods. I prepared some new class called ExecuteRequest which is taking Statistic object in the constructor. What i want to achieve is after i put e.g LSP to this class i would like to determinate what specific object it is in this case LSP right? Then having that i would like to put this object to RunRequest method. How can i achieve that? See my code below:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace SOAP_testing {
public class ExecuteRequest

[Code] .....

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Jan 30, 2013

I'm trying to pass an reference of the object ifstream to my constructor as such:

// myClass.cpp
int main(){
ifstream file;
myClass classobj = myClass(file);}

I am defining the constructor as follows, in myClass.cpp:

myClass::myClass(ifstream &file){
// do stuff
}

I get the error of "No overloaded function of myClass::myClass matches the specified type."

Also, when I build the program, it tells me "syntax error: identifier 'ifstream'"

Also, I made sure I included this:
#include <iostream>
#include <fstream>
#include <sstream>

What am I doing wrong? How can I pass an ifstream reference to my constructor?

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C++ :: Pass Object To Class Which Stores It In Container As Unique Pointer

Jul 24, 2013

class A (abstract)
class B : A
class C {
void add ( A(&*?) a )
std::vector<std::unique_ptr<A>> data; //unique_ptr<A> because A is abstract and therefore vector<A> isn't possible
}

upper situation. What is the best way to pass add an object of class B to C?

with C::add(A* a){ vector.push_back( unique_ptr<A>(a) ); }
and
int main() {
C c;
c.add( new B() );
}

This works, but i don't think it's very nice, because you could delete the pointer in main. What happens then with the unique_ptr? I could probably make C::add( std::unique_ptr<A> u_p ); but maybe it can be avoided that the "user" (in main() ) has to create the unique_ptr itself.

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Nov 30, 2014

The following code compiles and runs fine till it reaches line 16 and gets a sigsev violation which I'm not sure about as to why. I have no problem passing the object of type node** into the constructor of base and storing it into the double pointer node** copy;; but when I call the function void pass(node** temp) it crashes.

#include <iostream>
class base;
class node {
private:
node** data;
public:

[Code] .....

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Jun 27, 2014

I would like to have 2 functions. (FYI, I haven't even tested these because I don't have a compiler on this PC, so don't know what they'll do. I'm also new to C++, self-teaching.)

My question is, I'm sure that oFile should be type object (of some sort), not int, but I'm not sure how to reference it correctly so that it passes from FileOpen to main to FileClose.

Code:
#include <iostream> //I/O
using namespace std;
#include <fstream> //files
using namespace ios;
int FileOpen(string fileName) {
ifstream oFile (fileName); //attempt to open file

[Code] ....

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Oct 1, 2013

I want to pass an array to a function and change the array, how can I do that?

Code:
#include<stdio.h>
/*function to change the array*/
void rearng(int *qw) {
int i,j,a;
int sa[8]; //temp array
int c = 0;
int high;

[Code] ....

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Sep 22, 2014

I'm trying to figure out how I can create a vertex array object at offset of a vertex buffer object.I've created the buffer object. I'd like the "texs" idnex data to start at the texture coordinate content of the vertex_t structure.

Type definitions:

struct vertex_t {
vector3d_t position;
float s; // Texture coordinate s
float t; // Texture coordinate t
};

Code so far:

// How do I make this start at a certain spot of the VBO?!
glVertexAttribPointer(texs, 2, GL_FLOAT, GL_FALSE, sizeof(vector3d_t), nullptr;
//...

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Apr 10, 2014

I need to pass an array of 10 instances of a custom class to a function. The snippets of code are posted below. How would I do this right?

The prototype:

Code:
int Search(Vertex vertex[], ofstream &outfile);

The implementation in the main function.

Code:
Search(vertex[10], outfile);

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Mar 15, 2013

I'm trying to pass an array from one function to another without resorting to pointers and I have to use Pass by Reference. I can't seem to figure it out. I've been looking at many examples and just don't get it.

the function createAbc makes an array populated with the Alphabet. I need to pass that into my display function so that i can work with the array there. I don't know how to pass it in there... :(

#include "stdafx.h"
#include <iostream>
#include <cctype>

[Code]...

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Mar 16, 2014

#include <iostream>
#include <iomanip>
using namespace std;
double calculateCharges(double hours[], double sizeofArray);//call function

[Code]....

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Feb 24, 2012

I want to pass an array to a constructor, but only the first value is passed--the rest looks like garbage. Here's a simplified version of what I'm working on:

#include <iostream>  
class board {
    public:
        int state[64];
        board(int arr[])

[Code] ....

Why this doesn't work and how to properly pass an array? Notes: I don't want to copy the array. Also, I'm using MSVC++ 2010 Express.

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Jan 23, 2013

I've been given an assignment with the below questions.

1. What is the difference between pass by reference & pass by pointers?

2. What is the use of the initialization list in the constructor?

3. What is meant by a reference & its advantage?

4. Class has a reference, pointer and a const. Is it possible to write the copy constructor & assignment operator overloading funciton? how? ( Since reference is there, I'm not sure on how to write for it)

5. Example for a variable decleration and definition? (I know for function but for variable don kw how)

6. static and const static what is the difference??

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Aug 4, 2013

How would I pass let say 2 array pointers to a function X , allocate memory for them in X , fill them with values and get them back in my main function without creating a structure.

example:

Code:

void X(int *a, int*b){
a= malloc ...
b = malloc ...
// fill a and b
return them back to the main function
}
void main(){

[Code]...

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May 2, 2013

I have been working on this all day, and its due in like an hour and a half. I have done everything the program wants except the last part. Here is the assignment:

Write a program that inputs 10 integers from the console into an array, and removes the duplicate array elements and prints the array. You may assume that all the integers are between 0 and 100, Write at least 1 function in addition to the main function, and pass an array into that function as a parameter. e.g.

Please enter your 10 numbers: 1 2 3 4 5 6 7 8 9 10
The array contains: 1 2 3 4 5 6 7 8 9 10

Please enter your 10 numbers: 1 1 3 3 3 6 7 8 9 9
The array contains: 1 3 6 7 8 9

Please enter your 10 numbers: 1 1 1 1 1 1 1 1 1 1
The array contains: 1

The bolded part is what I cant get to work. I have tried this and it keeps telling me I have not identified the items when I have.

Here is my code:

#include "stdafx.h"
#include <iostream>
using namespace std;

[Code]....

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Mar 14, 2013

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struct someStruct{
int structArray[999];}

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ptrSomeStruct->structArray[someIndex];

But now I want to pass structArray to this function by reference so that it can adjust the array as needed and I can continue to use the array back in my caller function:

void adjustArray(void *& someArray){}

How do I accomplish this?

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Sep 4, 2014

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Nov 15, 2013

I am attempting to write a program " that has a function that is passed an array of int and its size, and with that it prints out only the numbers that are above average. "

I have included my code so far, but I am only getting one value as output, and that value seems to be completely off. I keep trying, but I am really stuck.

#include <iostream>
using namespace std;
int average(int values[],int size);
int main(){
int size;
int values[] = {1,2,3,4,5,6};

[Code] ....

Added the floats in the average() function. But there is still a value problem.

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Sep 17, 2014

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Code so far:
#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <iomanip>

[Code]...

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Jul 12, 2012

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Suppose I have typedef two_Darr[3][3];

How to declare this and how to pass it to other function definition in the main function ....

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Apr 20, 2013

I have this code:

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{0xFF, 0xFF, 0xFF, 0xFF}
};
void function(const BYTE** values){

[Code] ....

You might notice that the above code doesn't compile, this is the error:

cannot convert parameter 2 from 'BYTE [2][4]' to 'BYTE *'
1>
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

Even after some search I couldn't really find an answer to my problem, how do I pass the const BYTE array which I declared above in the function as a parameter (or what structure do I need to set for the function as a parameter)?

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