C# :: Not Loading Dynamic Array (128,8) Correctly
Feb 14, 2013
Code:
public void dam_data_setup() {
// fill list
damgtype.Add( den1);
damgtype.Add( den2);
damgtype.Add( da1);
damgtype.Add( da2);
damgtype.Add( db1);
damgtype.Add( db2);
[Code] .....
This is a genetics program and is to parse the source array and write all possible combinations to a new array. All sections but dilute work correctly. For some reason the dilute's Boolean is not testing true when it should. This is causing data corruption.
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Jan 4, 2013
I'm writing a program in which I have to use a matrix to represent a file in code. because it's a file, the size of the matrix is undefined, and therefore the matrix has to be dynamic. I found out that my compiler doesn't like dynamic multidimensional arrays, so I was thinking of this matrix as a dynamic (monodimensional) array of other dynamic (monodimensional) arrays. My program (and thus this example) uses unsigned chars.
unsigned char variable=something;
unsigned char**matrix=new unsigned char*[lenghtOfMainArray];
for(int rowNumber=0;rowNumber<lenghtOfArray;rowNumber++)
{
[Code].....
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Sep 10, 2014
The program is supposed to read in a text file, load it into an array and assign a character to each number in the array (so for this I'm thinking I'll be creating 2 arrays, an int array with the numbers read in from the file, and a char array with the characters assigned to the numbers). It will then print these two arrays. It's then supposed to go through the initial int array and search for any numbers whose values differ from their neighboring values by more than one, if such a value is found, it's supposed to give the number the value of the average of it's neighboring values. It's supposed to make all these corrections and then assign characters to these corrected numbers and print out both arrays.
How to load the array from the file. My textbook seems to do a good job of covering arrays and files, but it doesn't really bring them together and talk about building arrays from files. Here is what the file looks like, the first number is the size of the array.
10
7 6 9 4 5 4 3 2 1 0
6 5 5 5 6 5 4 3 2 1
6 5 6 6 7 6 8 4 3 2
1 5 6 7 7 7 6 5 4 3
5 5 6 7 6 7 7 6 5 9
5 6 7 6 5 6 6 5 4 3
5 6 7 9 5 5 6 5 4 3
5 5 6 7 6 6 7 6 5 4
5 9 5 6 7 6 5 0 3 2
5 5 5 5 6 5 4 3 2 7
And here is the code I have so far:
#include <iostream>
#include <fstream>
using namespace std;
[Code]....
When I attempt to compile this (I'm working on a Linux system), I'm getting several errors:
prog1.cpp: In function ?int main()?:
prog1.cpp:37: error: expected unqualified-id before ?[? token
prog1.cpp:39: error: ?numArray? was not declared in this scope
prog1.cpp:39: error: expected primary-expression before ?]? token
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Jul 19, 2013
I'm having troubles with loading my text file into my array.
Code:
int main(int argc,char* argv[]) {
if(argc!=3) {
printf("
Insufficient arguments
[code]...
I'm also suppose to return the size of the input at the end.
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Apr 28, 2014
Heres what I am suppose to do, So it doesnt seem hard to understand my messy code!
1. Gotta load the file "FactoryData.txt"
2. Load all values in my 2D array (array[5][3])
3. Print out the array to ensure that the copying went by well.
Heres my problem:
1. The for loops is REALLY off in my eyes. From my knowledge (correct me if im wrong), its suppose to be for(r=0;r<5;r++) not <=. BUT somehow im getting the results I want (in terms of formatting). HERE IS MY OUTPUT
Quote
300 450 500 510
510 600 750 627
627 100 420 530
530 621 730 200
200 50 58 100
100 83 4 5
Press Enter to return to Quincy...
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Oct 6, 2014
I am working on a program that is supposed to eventually be able to evaluate bridge hands, but one of the first things I need to do is create and load an array. The program is supposed to read in hands from a file (each line in the file is a hand of 13 cards), evaluate these hands based on a list of rules, and display the results.
Here is the file that will be used for the program:
2C QD TC AD 6C 3D TD 3H 5H 7H AS JH KH
3C 4C 2D AC QC 7S 7C TD 9C 4D KS 8D 6C
2C 3C KC JC 4C 8C 7C QC AC 5C 9C 6C TC
5H 3S 4D KC 9S 3D 4S 8H JC TC 8S 2S 4C
2S 5D 6S 8S 9D 3C 2H TH
2H 6D %S 8S 7S 4D 3H 4S KS QH JH 5C 9S
2C QD TC AD 6C 3D TD 3C 5H 7H AS JH KD QS
2C QD TC AD 6C 3D TD 2C 5D 7H AS JH KD
2H 6D TS 8Z 7S 4D 3H 4S KS QD JH 5C 9S
I've gone through and wrote out what the program is supposed to do and what I think is needed and what steps to take to accomplish this, but am getting stuck on the array. If you can't tell I'm extremely new to this and am still learning. I'm not sure how to create and load an array like this since it seems to me there'd be two elements per index, a suit and a value.
Also, the instructions mention that I will need a data structure to hold the cards in an ordered manner. I'm really confused on this as well, if I'm using an array, how does the data structure come into play?
Can the data structure be used in place of the array?
Here is the code I have so far, but keep in mind that at the moment all it actually does is open the file (The "File is open" message will be taken out as the code progresses, I just threw that in there to make sure the file was actually being opened):
//#include <program3.h>
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
int main() {
char handsArray[];
ifstream bridgeFile;
[code]....
The input should be sorted by suit and the rank within the suit and be displayed in teh following format:
Clubs 10 6 2
Diamonds A Q 10 3
Hearts K J 7 5 3
Spades A
Points = 16
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Oct 13, 2014
I'm struggling loading a class (and it's two derived classes) from an input file. I'm trying to create an array of class objects (and derived objects) and then load them based upon what is in the file.
Main class: Code: class Book
{
protected:
string sTitle;
[Code].....
Basically if the getline get's a P it's supposed to create a new object using the PrintedBook derived class and then store it to an array, if the getline get's to the "A" it's supposed to create an AudioBook object.
What I'm struggling with is writing something to parse the file line by line and create the objects on the fly and then store them into the array.
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Oct 5, 2013
How would i go about loading an array with random numbers with in a range. For example, loading an array of 500 elements with random numbers in the range of 50-100.
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Jan 25, 2015
I am currently working on a project that requires me to "load the data in the file into array at the beginning of the program."
I have a text file with data, and I need to populate an array with the information. From then on, I am supposed to be able to add, display, and search that array. However, I can't figure out how to add the data from the file into an array. I was trying to find out how to search the text file itself. So it threw me off balance and I've been staring so long at the screen I can't really focus.
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Mar 21, 2013
how to correctly use realloc on an array of char arrays? Say I want to store strings in arrays (=array of char arrays) and double the size of max. strings (y value):
Code:
int x=200;
int y=10;
char *carray[y];
for (int j = 0; j < y; ++j)
carray [j] = malloc (sizeof(char)*x);}
}
[code]...
fix the realloc part of my code?
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Aug 6, 2014
I've written this class and struct to create a singly linked list. The data is stored in the binary file which I've opened and read. I'm trying to load said data into a class type array. The errors I'm getting are "incompatible types in assignment of 'StatehoodInfo' to char[3]" Lines 130-134 is what I was working on.
#include <iostream>
#include <iomanip>
#include <fstream>
#include <sstream>
#include <string>
#include <cstring> //For char[] string functions
[Code] .....
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May 17, 2013
I wrote a Simon game, and wanted to save the top 10 scores. I was working right, until I decided I wanted to still be able to read the file if someone enters a name containing spaces. Now, the results aren't right.
void FillScoreList(string Simon_Names[], int Simon_Scores[]) {
ifstream Simon_HiScores("Simon_Data.txt");
if (Simon_HiScores.is_open()) {
for( int x=0;x<10;x++){
[Code] ....
Even without trying to read names with spaces, I'm getting
dad 1
0
340176
0
... either a long number or a zero. No names
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Mar 13, 2013
But it can the other way around
Code:
static_Array= dynamic_Array;
dynamic_Array = static_Array;
The second statement works and i'm able to print out both arrays with equal values but with the first
[code] static_Array = dynamic_Array;I get incompatible types in assignment of 'int*' to 'int [7]' is the error I get [/code]
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Jul 15, 2013
Code:
Int** d = malloc( ROWS * sizeof(int*));
for (i = 0; i < ROWS; i++)
d[i] = malloc(COLS * sizeof(int));
fx(d);
My question is, in a function declaration, why do I not have to specify the number of columns. How is this different than when I pass a static 2D array to a function, in which I must declare the function parameter with the number of columns.
Code: void fx(int d[][COLS]);
VS.
Code: void fx(int **d);
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Jun 12, 2013
I remember in C++, when a dynamic array is allocated, the size of this array is stored right before the array in memory. Therefore compiler knows exactly how long, when this array is deleted.
Do all compilers store the size this way? Is it a safe method to get the size of a dynamic array?
Here is a example code, it works fine on Visual Studio 2012.
#include <iostream>
using namespace std;
class dummy {
public:
dummy() {
cout<<"dummy created"<<endl;
[Code]...
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Sep 13, 2013
So this is the code I have so far, I didn't know it had to be a dynamic array so how would I Utilize dynamic array allocation to size the modal array
#include <iostream>
using namespace std;
int main() {
const int arraySize = 25;
const int patternSize = 10;
[Code] ....
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Mar 4, 2014
I need to create dynamic array or map. for example
CString *a1;
CString *a2;
CString *a3;
it minimized to using for loop.
for (int i=1;i<=3;i++) {
CString s="a"+"itoa(i)"
CString *s;
}
Something like this. its same as map concept.
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Nov 14, 2013
I need to confirm that this problem cannot be solved without a pointer. Namely I need to read the rows and columns number from the user cin >> m, n and then use to declare an array int A[m][n];
However as m and n are not constants I am not able to do that. Is there a workaround? The following is the solution I came with BUT using a pointers which should be not the case.
// solution with using pointers as "int A[m][n]" does not work for me!!!
void TwoDimensionalArrayFunc(){
int m = 0;
int n = 0;
// instruct the users to enter array dimensions
cout << "Please insert value for m:";
cin >> m;
[Code] ....
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Feb 6, 2013
arrays with dynamic sizes. That being said, I'm working with a simple code which seems to work just fine, my only concern is that once I display the 'char array', not only displays the user's inputs but some extra data, symbols and what not.
why, if to my understanding the first user's input already sets the size of the array
#include <iostream>
#include <iomanip>
using namespace std;
[Code].....
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Dec 26, 2012
I need to write 2 functions:
1. MyMalloc
2. MyFree
___________________________
I have a 1000 bytes global array (which did not dynamic allocated).
I need to make "dynamic allocation" from this array.
For example - MyMalloc(50) ---> The program will allocate 50 bytes OF THE ARRAY'S SIZE.
------
MyFree(pointer) ---> I need to check if the pointer is in the array and free the space.
It should be managed by blocks. The array should also contain the manage variables (for me).
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Dec 13, 2013
I am trying to figure out copy constructors for a dynamic array and I am definitely missing something. If I go into the copy constructor routine during debug, the values appear to be correct but they don't percolate up to the newly created object. I'll post a portion of the code below:
Code:
// include header files for the classes that are being used
#include "stdafx.h" //
NOTE: THis reference must be added to all cpp files in Visual Studio Express 2013
#include <iostream>
#include <string>
#include <cstdlib>
#include <map>
using namespace std;
const int ARRAY_SIZE_DEFAULT = 32;
class vectorOfInt {
public:
[code]....
The size of c is 0. Values of a were not copied to c, although they appear to do so within the copy constructor routine.
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Jun 11, 2013
I have a little problem with one of my functions. The function purpose is to get a number (n) and create an array (size n) with pointers to strings (each string length is 20 chars) and i don't know why but during the debugging i get a <bad ptr> message and this message :
CXX0030: Error: expression cannot be evaluated
This is my function:
Code:
char** getlist(int n) {
int i=0;
char **arr;
arr=(char**)malloc(sizeof(char)*n);
if (arr==NULL)
[Code] ....
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Jan 29, 2014
I am trying to create an dynamic array (lno) This array will store addressess of different Linked list. What exactly I want is:- Take N Number of Linked List user want to create> eg. 2 now It will create 2 linked list for which I am trying to allocate memory.
Code:
struct node{
int data;
struct node *next;
}
first;
lno[0] Node 0's first address stored in ln[0] lno[1] Node 1's first address stored in ln[1] Here is the code in which I am facing problem with error Illegal structure Operation
Code:
#include<conio.h>#include<stdio.h>
#include<stdlib.h>
struct node
{
int data;
struct node *next;
};
[code]....
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Jul 27, 2013
I coded a program that takes some strings and lexicographically orders the strings and its substrings. I have used dynamic memory allocation technique and its working fine for all strings without consecutive same alphabets.I use a list in which a string is placed in its exact position by moving the others right.
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <conio.h>
[code]....
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Nov 22, 2013
I'm having a bit of trouble trying to delete elements in a dynamic array of objects. I tried to delete elements by shifting that particular element and the ones that follow over one element and then assigning the last one to NULL.
cin >> input;
while (input != -1 || k == 7) {
for(int i = 0; k < numberOfRecords; i++) {
if (input == records[k].id) {
[Code] .....
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Apr 22, 2014
I made a resize function for my dynamic array template class that goes as follows. Note that the private member variables are T* arr, unsigned used, and unsigned cap.
template <class T>
void darray<T>::resize(unsigned size) {
if (size > cap) {
T* temp_arr = new T[size];
[Code] ....
Whenever I use this function to increase the size of the array, it will work the first time I need to use it, but after that, Visual Studios will trigger a breakpoint at line 14, and if I continue past the breaks, I eventually get _CrtIsValidHeapPointer(pUserData) assertion failure.
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