C++ :: Class Defining And Storing Integer Arrays

Apr 23, 2013

I am currently stuck on what I should do next in a program I am working on. These are my instructions:

Design, implement, and test a class for storing integer arrays "safely". The array should be able to hold any number of integers up to 100.

In the class header file "SafeArray.h" students must define the class and specify the constructor/destructor functions, the public methods and private variables. In the class implementation file "SafeArray.cpp" students must implement the following operations:

constructor - to initialize the object.
copy constructor - to copy an object.
destructor - to delete the object.
set - allow the user to set a value of the array at a particular location.
get - allow the user to get a value of the array at a particular location.
print - print out the array.
add - add the elements of one array to another.
subtract - subtract the elements of one array from another.

The output of my program is suppose to look like this:

Set q1: 2, 3, 4
Print q1: 2, 3, 4

Set q2: 1, 4, -2
Print q2: 1, 4, -2

Add q2 to q1

Print q1: 3, 7, 2
Get q1 at 1: 7

Here is the code I have so far.

*main.cpp*

#include <iostream>
#include "SafeArray.h"
using namespace std;
int main() {

// Declare a SafeArray object
Safe obj;

[Code] ....

View 1 Replies


ADVERTISEMENT

C++ :: Storing Integer Arrays Safely

Apr 22, 2013

I have an assignment where I have to design, implement, and test a class for storing integer arrays "safely". I do not know how to set up the destructor.

The goal of this programming assignment is to give students practice defining and using classes. In particular, students are required to design, implement, and test a class for storing integer arrays "safely". The array should be able to hold any number of integers up to 100.

In the class header file "SafeArray.h" students must define the class and specify the constructor/destructor functions, the public methods and private variables. In the class implementation file "SafeArray.cpp" students must implement the following operations:

constructor - to initialize the object.
copy constructor - to copy an object.
destructor - to delete the object.
set - allow the user to set a value of the array at a particular location.
get - allow the user to get a value of the array at a particular location.
print - print out the array.
add - add the elements of one array to another.
subtract - subtract the elements of one array from another.

The purpose of your main program "main.cpp" is to demonstrate that all of the methods above work properly. You should have at least one call to each of the methods, and print out the array as needed to show that the operations are performing correctly.

"SafeArray.h":

#ifndef SAFEARRAY_H
#defineSAFEARRAY_H
class Safe {
private:
// Declare variables to store A, B and C

[Code] ....

View 2 Replies View Related

C++ :: Big Integer Class Using Dynamic Arrays

Mar 27, 2014

I have become overwhelmed an frustrated at these current operator overloads!

Currently I still can not get my +,* or istream operators working at all!

#include <iostream>
#include <cstring>
#include "myint.h"

[Code]....

View 1 Replies View Related

C :: Assign Integer Value To Unsigned Char Array But It Is Not Storing Integer Values

Oct 25, 2013

I am trying to assign the integer value to unsigned char array. But it is not storing the integer values. It prints the ascii values. Here the code snippet

Code: uchar uc[100];
for(i=0;i<100;i++)
{
uc[i] = i;
}

The values which are stored in uc[] is ascii values.I need the integer values to be stored in uc[]. I tried to do it with sprintf. but the output is not as expected. if I print the uc[i] it should diplay the value as 0,1,2....99.

View 9 Replies View Related

C++ :: Defining Operator In Abstract Class

Jun 22, 2012

I have an abstract class called Mbase and from it derived two classes: Sparse and Dense. Now I have an array in which its elements can be either Sparse or Dense. So, I delcared the array to have pointers to Mbase class. For example:

PHP Code:
Mbase** A;
Sparse* A1 = new Sparse;
Dense* A2 = new Dense;
A[1] = dynamic_cast<Mbase*>(A1);
A[2] = dynamic_cast<Mbase*>(A2); 

Now, I have operator + defined in Sparse and Dense. but when I do

PHP Code:

A[1]+A[2] 

I get that operator + is not defined for Mbase class. So, I tried to define it in the Mbase class

PHP Code:

class Mbase{
public:
void put()=0;
double get()=0;
Mbase operator +(Mbase A);


However, the last code does not compile complaining that it cannot declare a class of type abstract in Mbase operator +(Mbase A). I think this is because I am returning Mbase instance.

View 10 Replies View Related

C++ :: Defining Struct In Code Using Array Class

Mar 16, 2013

Is it any different when using a class in my code. My previous code i define my struct like this

Code: #include <iostream>
#include <fstream>
#include <string>

struct{

[Code] .....

or do i still define it the same way at the top of my code.

View 4 Replies View Related

C++ :: Defining Member Functions Outside Class Definition

Jan 3, 2014

#include "stdafx.h"
#include <iostream>
#include <math.h>
using namespace std;
class Calc {

[Code] ....

when i built it, it showed the following errors:

1>------ Build started: Project: rough, Configuration: Debug Win32 ------
1> rough.cpp
1>e:c programs
ough
ough
ough.cpp(17): error C3872: '0xa0': this character is not allowed in an identifier
1>e:c programs

[Code] ....

Need sorting out the errors!!!

View 3 Replies View Related

C++ :: Defining Struct In Separated Class File ERROR

Oct 20, 2013

i've defined an strcuct in .h file and i read its variable in a method in .cpp file ,but i'v got error.

.H file:
class myclass{
public:
struct opt_struct

[Code]....

when i declare the struct without static , it doesn't recognize my struct and with static i face linker error:

Error33error LNK1120: 1 unresolved externals

View 3 Replies View Related

C/C++ :: Defining Class Counter - Member Variable Should Be Private

Oct 23, 2014

The question is: Define the class Counter. An instance of this class is used to count things, but the counter should never be less than 0 (non negative number). The member variable should be private. I realize what I'm suppose to be using but can't implement the member functions needed..

int main(){
int value;
cin >> value;
Counter myCounter(value);
for (int i = 1; i <= MAXLOOP; i++) {
myCounter.increment();

[Code] ....

View 3 Replies View Related

C :: Storing Multiple Bits As One Integer

Oct 3, 2013

So I'm supposed to write a code that asks a user for a string and then displays the hex, decimal, and binary code for each individual letter and then tells the user how many bits in binary were 1. For example: Enter a line of text: Hello

The ASCII code for 'H' is 0x48 in hex, 72 in decimal, or 01001000 in binary, 2 bits were set.
The ASCII code for 'e' is 0x65 in hex, 101 in decimal, or 01100101 in binary, 4 bits were set.
The ASCII code for 'l' is 0x6c in hex, 108 in decimal, or 01101100 in binary, 4 bits were set.
The ASCII code for 'l' is 0x6c in hex, 108 in decimal, or 01101100 in binary, 4 bits were set.
The ASCII code for 'o' is 0x6f in hex, 111 in decimal, or 01101111 in binary, 6 bits were set.

So far I've got a code that will display the binary bit pattern by shifting a mask and testing for a 1 or 0. The problem is I can't figure out how to make it so the 1's and 0's get put into a single integer rather than just printing out. I hope that makes sense. Here's my whole code.

Code:

#include<stdio.h>
main ()
{
int i;
char input;
printf ("Enter ........: ");
scanf ("%c", &input);
for (i = 1; i <= 8; i++)

[Code]...

View 9 Replies View Related

C++ :: Storing A List Of Numbers In Integer?

Dec 6, 2014

I am writing trying to store a list of numbers into an integer as bits. So far I have this:

n=n & 0x0f
integer = integer<<2
integer = integer | n;
convert(integer));

I want it to store the integers as bits so that I am move them over and store them farther down the row as more numbers are added, but instead each new number is being added to the previous and I'm just getting a larger integer. Is this even a feasible way to store integers within an integer?

View 1 Replies View Related

C :: Storing PPM Data Into Arrays

Mar 29, 2014

I am doing this program where I analyze colors in a ppm file. Now I am having a hard time storing the data into arrays in this order...

P3
600 339
255
44 5 8
44 5 8
43 4 7
42 3 6
42 3 4
44 5 6
...

So far i tried using fscanf()

Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <stdbool.h>

#define DEBUG true
#define CHECK true

[Code] ....

I then realized that the order that the second method gave me will make it very hard for me to calculate the RGBs. Because they will be calculated like wise..

P3
600 339
255
44 5 8 = sum
44 5 8 = sum
43 4 7 = sum
42 3 6 = sum

42 3 4 = sum
44 5 6 = sum
...

but that isn't the issue right now..

View 10 Replies View Related

C++ :: Storing Values In Arrays?

Feb 25, 2014

I'm am trying to get info from a file and put it into three arrays but it isn't working.

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
void sort(ifstream& infile){

[code]....

View 3 Replies View Related

C/C++ :: Storing Values In Arrays Using For Loop

Nov 18, 2013

I am trying to create a program that will give me an value for a chosen from the user array ut I believe the program I've made does not recognize the values of the previous arrays. (Here is my program):

#include<stdio.h>
int main() {
int n;
int i;
int j;
float c;
float a[10000];

[Code] ....

There must be problem cause every value I give n(only for n=1 the answer is correct) the result is "a[n] is -inf"

View 1 Replies View Related

C++ :: Storing Multiple Arrays Based On User Input

Feb 7, 2014

I'm trying to create a function where it allows the user to type in multiple amounts of integers, so if the user wanted to have 3 different storages that hold different integers, the input would look something like this:

5
97 12 31 2 1 //let's say this is held in variable "a"
1 3 284 3 8 // "b"
2 3 482 3 4 // "c"
2 3 4 2 3 // "d"
99 0 2 3 42 // "e"

Since we don't know what number the user will input every time, I'm not sure how to create a dynamically allocated array that will create an x amount of arrays every time.. I want to be able to access each index of a, b, c, d, e or however many arrays there are.

So far, this is what I have, but I'm having trouble creating the arrays since it's unpredictable. I'm purposely not using vectors because I don't really get how pointers work so I'm trying to play around with it.

int* x;
int length, numbers;
cin >> length;
x = new int[length]
for (int i=0;i<length;i++)
{
cin >> numbers; //this doesn't work because it only grabs the first line for some reason
x[i] = numbers
}

View 3 Replies View Related

C++ ::  2D Arrays - Creating Virtual Creatures By Storing A Letter Into Random Position In Array

Nov 3, 2014

So first I have to display a 2D array with all 0s, which is pretty easy.

#include <iostream>
using namespace std;
int main (){
int array[5][5];
for(int a=0; a<5; a++){
for(int b=0; b<5; b++){
array[a][b] = 0;

[Code] ....

So this displays

0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0

Next, this is where it gets confusing. I have to create a virtual creature by storing a letter into a random position in the array (the array can be up to 20x20 in size). Then make a function that searches the array for creatures, so it would search for that character. When it finds a creature, it should randomly decide to either move the creature to an adjacent position, or have it stay where it is. After, it should ask the user to create a new creature, or quit.

So how would I go about adding & modifying the current code to achieve what is listed above?

View 2 Replies View Related

C++ :: Storing Class In Array

May 2, 2013

How do I go about storing info to an array of class?I need to do something like this:

info[count] = ReadNameRating(n, r);

Where info is an array of my own class and ReadNameRating reads the name and rating which is two of the variables handled by that class.

View 2 Replies View Related

C :: Add Two Big Integer Numbers Without Use Of Arrays

Dec 1, 2014

i'm having difficulty with a problem, i need to add two big numbers suchas 54646774456776 and another one 445556777554 and it would print the result. how can i approach this problem without the use of arrays?

View 4 Replies View Related

C++ ::  Class Creation And Storing Angles

Dec 22, 2013

I have a quick question. I need a way to represent orientation in degrees. I made a class which automatically changes negative angles into positive ones (adds 360 until >0) and makes sure they are under 360 (subtracts 360 until <360).

Now I realized I also need a class to represent angular movement, which must be in the range ]-360;360[

I don't think custom types with the unsigned keyword is a thing, but I'm just looking for a better way to do this then making two classes. Or would you just create a class which inherits from angle and overloads a few methods?

Or I could just use floats to represent rotation, because testing if an object does more than 1 turn per second isn't really required.

View 9 Replies View Related

C++ :: Add And Subtract Two Sets Of Integer Arrays?

Apr 24, 2013

Ok so I am currently trying to add and subtract two sets of integer arrays. When I run my program, the program does not subtract the numbers from the first set with the numbers from the second set. Could anyone here take a look at my code and help me figure out what the problem is?

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

[Code].....

View 1 Replies View Related

C++ :: Adding And Subtracting Integer Arrays?

Apr 23, 2013

I am currently working on a program that uses a class to store integer arrays. I have most of the code done, but I am having trouble on the main.cpp part of my program. The program should display this:

OBJ 1:
2 3 4
OBJ 2:
1 4 -2
Addition:
OBJ 1 =
3 7 6
Subtraction:
OBJ 1 = 1 -1 6

But when I run and compile my program, this is what I get:

OBJ 1:
2 3 4
OBJ 2:

ADDING:
OBJ 1 =
4 6 8
Subtraction:
OBJ 1 =

Here is my current main.cpp:

Code:
#include <iostream>
#include "SafeArray.h"
using namespace std;

[Code].....

View 3 Replies View Related

C++ :: Reading File And Storing In Class Objects?

Aug 18, 2013

I've a text file : Random.txt which comprises of
Jade
12MS234
Male
18
Rocky
12MS324
Male
18
Marx
12MS632
Male
18

Now in my program i've a class
class stud
{
char name[10];
char reg[10];
char gender[10];
int age;
};

Now I've to write a code in c++, where i've to read the given data and store this into 3 objects of stud class(array of objects) ...then further i've to manipulate the above stored data. I think i'm getting error while storing...variables are showing random characters... give me the code.for this program..in C++

View 2 Replies View Related

C++ :: Storing A Class With String Members Into Binary Files

Nov 17, 2014

Im trying to make a c++ program for a school project, and i need to store the information into binary files, but I'm having some problems trying to store a class with string members, for example:

class whatever{
protected:
string name;
public:
(List of functions)
}

But if I do that, my code just dont work when I write and read a binary file, but if I change the string to char array, for example:

class whatever{
protected:
char name[20];
public:
(List of functions)
}

It works good, so I wanted to know if there's some way to store a class wiht strings in binary files, or what am I doing wrong?

View 4 Replies View Related

Visual C++ :: Class For Storing Values Inside XML File

Oct 9, 2014

In VC++ is there any inbuilt class for storying values inside an XML File, without using CLI?

View 14 Replies View Related

C++ :: Passing / Returning Character And Integer Arrays With Functions

Jun 21, 2013

Passing and returning character and integer arrays with functions using simple programs...use pointers if necessary

View 1 Replies View Related

C++ ::  Storing Static Class Members Of Dynamic Variable Type In DLL

Oct 15, 2013

How I can implement it.

Tickable.h

#include <list>
#ifdef TICKABLE_EXPORTS //Automatically defined by MSVS
#define DLL __declspec(dllexport)
#else
#define DLL __declspec(dllimport)
#pragma comment(lib, "Tickable.lib")
#endif

class DLL Tickable{

[Code] ....

error LNK2001:
unresolved external symbol "private: static class std::list<class Tickable*,SKIPPED BITS> Tickable::subs" HUGE_SYMBOL_LIST
PATHTickable.obj

I know with such a tiny and insignificant class the dll export seems pointless but this class is actually intended to be a .lib ONLY. But it is derived from by .dll style classes, and through inheritance this error is the exact same as what appears in the derived class, I just imagine that the cut down version would be easier to work with.

Is it possible to hold either a static variable in a dll which is of a dynamic type, OR would it be possible to reference an external variable which is static throughout the instances and this variable can be chucked away in a namespace of mine somewhere?

I suppose my only other option (if this is possible) would be to define a maximum instance number and create a standard array of pointers but this could both waste so much memory when not in use and cause problems if I need more memory.

View 5 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved