Visual C++ :: Index Position In Array
Dec 9, 2014
My program takes the values from one array and searches for their index position in another array(linear search algorithm). This is an example of the issue I am having(its not part of the actual code below) :
a[]={1,2,3,4,5,6}
Arr[]={1,2,2,3,4,5}
If it finds 1 in arr, it returns 0, which is fine but if it finds 2 in arr it return 1 and 1 instead of 1 and 2. any thoughts on how to fix this?
Code:
for (int q=0; q=size2;q++) {
int rs=secfunc(array1;size1;array2[q])
if(rs>=0) {
cout<<rs << "
";
[Code] .....
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Dec 9, 2014
My program takes the values from one array and searches for their index position in another array (linear search algorithm). This is an example of the issue im having(its not part of the actual code below)
a[]={1,2,3,4,5,6}
Arr[]={1,2,2,3,4,5}
If it finds 1 in arr, it returns 0, which is fine but if it finds 2 in arr it return 1 and 1 instead of 1 and 2.
for (int q=0; q=size2;q++) {
int rs=secfunc(array1;size1;array2[q])
if(rs>=0) {
cout<<rs << "";
[Code] .....
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Jan 10, 2015
Here's my code
bitIndex = 5;
Code:
bool getBS(PBitSet _this, int bitIndex) {
if(_this->bits & (1 >> bitIndex))
return true;
else
return false;}
I want this code to return the value of the bit at position bitIndex. It can be either false or true. The problem is, that it always returns false, even thought I enter 16 as my number, so the 5th bit should be true.
0000|0000 = 0
0001|0000 = 16
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Mar 4, 2013
What I have to do is write a small program in C++ to parse the symbols that are used on 5 different lines of text in each position until position 30 is reached on each line. The goal of the parsing program is to interpret the symbols (characters), if there are any per each position, on the 5 lines of text in order to output the actual data that the group of symbols represents.
My question for is this: Is there anything special from a C++ environment that should go in to something like this outside of using standard stuff like the math associated with the search algorithm that has to happen here? The symbols are located in a file, so I know I have to include "iostream" and a few other headers. But outside of header inclusions and the code necessary to iterate and streamline the search and interpretation process, am I missing anything special that I couldn't otherwise find through simple google searches?
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Feb 4, 2015
I have a mfc project with a List Control (Report View).
When I run the project, the list control appears in the middle of the window instead of appearing where I placed it.
Is there a qay to make it stay where I need it?
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Apr 19, 2013
How to detect when mouse pointer entering on toolbar .
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Sep 6, 2013
How can I handle splitter position changing?
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Jan 31, 2014
I have a problem to set sliderposition programmatically. This is my try:
//pointer to my slider control:
// On the begining the range ist 1 to 10
// and the position is on 5
// change the range:
pSliderCtrl->SetRange(1, 100); // ok no problems
Now, how to "move" btw. how to redraw the position of the slider thumb programmaticaliy with c++? Need to send some message, if yes what message i need to send to slider control to move (reposition) the slider thumb?
I try with
// first:
::SendMessage(pSlider->m_hWnd, WM_NOTIFY, TRBN_THUMBPOSCHANGING, 0);
// then with:
::SendMessage(pSlider->m_hWnd, WM_NOTIFY, NM_RELEASEDCAPTURE, 0);
but nothing happens?
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Apr 25, 2014
I was loaded a bitmap using this code. I'm using mousemove method to known the Dialog's mouse move position & get the RGB pixel.
I want to get the picture contol's mouse move position & using this point (x,y) i will get the particular color ref value R, G, & B.
My picture control size is 256 * 256 & I was loaded an image 512 * 512.
Using scroll bar, I was view the image but can't get the particular pixel in the picture control.
The below code get the Dialog's mouse move cursor position & RGB Values only.
Code:
void CMyDlg::OnMouseMove(UINT nFlags, CPoint point) {
int R,G,B;
COLORREF ref;
ref = m_dcMem.GetPixel(point.x,point.y);
R = GetRValue(ref);
G = GetGValue(ref);
B = GetBValue(ref);
CButton::OnMouseMove(nFlags, point);
}
How can i get the picture contol position even use the scroll bar.
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Jun 11, 2013
I have a dialog control where I am using a slider control. I have handled the notification messages sent by the slider control. When user clicks on the slider, the slider moves in steps. I want to bring the slider directly to the position where user has clicked the mouse. The slider thumb should directly move to the clicked position instead of in steps.
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Dec 24, 2013
So for a project I'm working on, I'm using an array and generating it's values randomly but unique. Currently I'm working on a 3X3 array and the generated values are in the range from 1-9. So I wrote a function that will tell me the position of the cell whose value is 9. This is the function I wrote:
Code: void Llogaritje1(int t[3][3],int &i, int &j){
int y,l;
for(y=0;y<3;y++){
for(l=0;l<3;l++){
if(t[y][l]==9){
i=y;
j=l;
break;
}
}if(t[y][l]==9) break;
}
}
But it doesn't work on all cells. Seems like at cells t[1][0] and t[2][0] the values that i and j take are 0 0 since when I print them after excecuting the function that's what it returns. I really don't understand why.
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Apr 17, 2014
I was trying to debug a code which was behaving in an abnormal way
Code:
#define NOOFELEMENTS 32
unsigned char array[NOOFELEMENTS];
unsigned char array1[23];
init() {
for(i=0;i<=32;i++)
{
array[NOOFELEMENTS] = 0
}
}
I could trace the above one of the mistakes where the array initialization is crossing the array limits and writing into array[32] which is not available. My question does it overwrite into array1 as it is declared below array or it can write into any other location.
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Oct 14, 2014
I have an array of array with negative index. It is an array which has real dimensions [dim_y + 40][dim_x + 40] but the user uses the array like it has dimensions [dim_y][dim_x].
So i see the array's rows lets say from -20 to dim_y + 20 but a user sees only from 0 to dim_y.
First i had global and already defined the dimensions dim_x, dim_y, so i had this:
Code:
int map_boundaries[dim_y + 40][dim_x + 40];
int (*map)[dim_x+40] = (int(*)[dim_x+40])&map_boundaries[20][20]; In fact, 'map' points to 'map_boundaries' , map[0][0] is map_boundaries[20][20].
I did what is posted in the second post here: Negative array indexing - Everything2.com
I want 'map' to be global. Until now i had defined the dim_y and dim_x so that worked fine.Now i just need to read from a user the dim_x and dim_y.
Until now i have global
Code: int **map_boundaries;
and then in main i use calloc:
Code:
map_boundaries = (int **)calloc(dim_y + 40,sizeof(int*));
for(i = 0; i < dim_y + 40; i++){
map_boundaries[i] = (int *)calloc(dim_x + 40,sizeof(int));}
but i dont know how to declare this line now:
Code: int (*map)[dim_x+40] = (int(*)[dim_x+40])&map_boundaries[20][20];
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Oct 14, 2014
I have an array of array with negative index. It is an array which has real dimensions [dim_y + 40][dim_x + 40] but the user uses the array like it has dimensions [dim_y][dim_x].
So I see the array's rows lets say from -20 to dim_y + 20 but a user sees only from 0 to dim_y.
First I had global and already defined the dimensions dim_x, dim_y, so i had this:
int map_boundaries[dim_y + 40][dim_x + 40];
int (*map)[dim_x+40] = (int(*)[dim_x+40])&map_boundaries[20][20];
In fact, 'map' points to 'map_boundaries' , map[0][0] is map_boundaries[20][20].
I did what is posted in the second post here: [URL] ....
I want 'map' to be global. Until now i had defined the dim_y and dim_x so that worked fine. Now I just need to read from a user the dim_x and dim_y. Until now i have global
int **map_boundaries;
and then in main i use calloc:
map_boundaries = (int **)calloc(dim_y + 40,sizeof(int*));
for(i = 0; i < dim_y + 40; i++){
map_boundaries[i] = (int *)calloc(dim_x + 40,sizeof(int));
}
But I dont know how to declare this line now:
int (*map)[dim_x+40] = (int(*)[dim_x+40])&map_boundaries[20][20];
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May 21, 2014
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Mind_Puzzle {
public partial class Form1 : Form
[Code] .....
When i try to start it, it doesn't start or it gives an error on "UsedList[i] = false;".
The error: "An unhandled exception of type 'System.IndexOutOfRangeException' occurred in Mind Puzzle.exe
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Oct 27, 2014
I am suppose to make a value to attach to a array and then have it stop on the last one with an error if it were to go past (done more or less).
Problem is I am suppose to use a int to hold the value of the array and then add 1 each time but my question is, if you were to add another number to increase your current array slot, what would that look like as I image that going array[0] + 1 isn't going to make it array[1].
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Jun 17, 2013
I need to sort the elements in a 2d array by their index (starting from 1) for example:
Code:
1 5 3
4 7 8
4 10 2
10 is the biggest element and its index is 32, after 10 comes 8 with index 23 etc etc...
Looking for examples for two orders ... By descending and ascending order...
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Oct 12, 2013
my question is located as a comment beside the last printf ! ? check the comment near the last printf the comment is ==>here i get a sequence of numbers the question is how can i copy this sequence to an array and the print the array out ?
Code:
#include <stdio.h>
#define N 30
#define n 100
[Code]....
here i get a sequence of numbers the question is how can i copy this sequence to an array and the print the array out ?
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Dec 7, 2014
Design and implement the class myArray that solves the array index out of bound problem, and also allows the user to begin the array index starting at any integer, positive or negative. Every object of type myArray is an array of type int. During execution, when accessing an array component, if the index is out of bounds, the program must terminate with an appropriate error message. Consider the following statements:
myArray<int> list(5); // Line 1
myArray<int> myList(2,13); //Line 2
myArray<int> yourList(-5,9); // Line 3
The statement in Line 1 declares list to be an array of 5 components, the component type is int, and the componentst are : list[0], list[1]…list[4]; the statement in Line 2 declares mylist to be an array of 11 components, the component type is int, and the components are: mylist[2],…mylist[12].
This is what I have so far:
#ifndef H_myArray
#define H_myArray
#include <iostream>
using namespace std;
template <class myArray>
class myArray
{
public:
private:
return 0;
};
#endif
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Feb 12, 2014
I have problem with find the index of the following array.
int minimums[2]={201,201};//first initialize both to greater than maximum allowed
for (int index = 0; index < 200; index++) {
if(find_array[index] < minimums[0]) {
minimums[0] = find_array[index]; //Lowest number
[Code]....
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Sep 20, 2014
I'm getting "Index was outside the bounds of the array." computerInput.pher[i, 0] = computerInput.availperi[a]; on line 198 but I'm not sure what I need to do in order to correct it. My array seems fine to me and I do see that "i" is showing 0 when debugging and won't change. Either I'm missing something or wrote my array wrong.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace TestComputerOrder {
class TestComputerOrder {
int style, board, hardDrive;
[Code] .....
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Apr 7, 2013
I want to do this but do not know exactly how to do it:
Create an array of space ship objects and write a program that continually updates their positions until they all go off the screen. Assume that the size of the screen is 1024 pixels by 768 pixels.
I have begun to write a bit code but the problem is when you want to see the space ship moving step for step on the screen I do not know how to create the ship visible so you can see it is moving. Here's my code so far
Code:
#include <iostream>
using namespace std;
struct SpaceShips
{
int x_coordinate;
int y_coordinate;
[Code ......
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Feb 3, 2015
Getting back into programming after a few years off and a bit rusty.
My question is: Is this going to initialize the size of the vector array's position and color properly?
#include <GLFW/glfw3.h>
#include <vector>
class TerrainClass {
private:
struct VertexType {
std::vector<float> position[3];
[Code]...
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Apr 11, 2014
I'm trying to make a calendar and I don't know how to cin strings into an array's index inside a function.
This is my current program.
Code:
#include<iostream>
#include<string>
using namespace std;
void viewMonth (string month[], int num);
void dayNote (string month[]);
int main()
[Code].....
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Apr 22, 2013
Actually i found some mistakes in my post. So here is the modified version. I want to concatenate the indexes of elements of array that has the same value for specific range.In my case the range is 4
Code:
int element[8]={2,2,0,3,3,0,1,2};
col=4;
int rr;
int qq=0;
for (rr=0; rr<col;rr++){
join_tmp[qq]=rr;
while ((element[rr]== element[rr+1]) ) {
join_tmp[qq]= concatenate(rr+1, join_tmp[qq]);
printf("%d
",join_tmp[qq]);
rr++;
}
qq++;
}
Code:
//FUNCTION TO CONCATENATE INTEGER VALUES OF SAME GROUP IN A COLUMN
unsigned concatenate(unsigned x, unsigned y) {
unsigned pow = 10;
while(y >= pow)
pow *= 10;
return x * pow + y;
}
Code: I want input like
10
2
3
Instead i get
10
2
34
how can i fix it so it will only iterate to the specific range?
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Mar 16, 2013
I have 2 arrays, one of doubles and other of integers, the doubles have the result of division of two numbers and the array with the ints have numbers that will refer to another array, but it is not important for this problem.
An example:
doubles array: (12,44;12,44;7,22; 12,44)
ints array: ( 4 , 2 , 3 , 1 )
now using my quicksort function i will organize the array of doubles from the higher to the lower, and the ints array will follow the order of the doubles array, the result is :
doubles array: (12,44;12,44;12,44; 7,22)
ints array: ( 4 , 2 , 1 , 1 )
Well, when i have values in the doubles array that are equal, i need to check the ints array and order the ints values, but only the ints that in the doubles array are equals, the final result will be:
doubles array: (12,44;12,44;12,44; 7,22)
ints array: ( 1 , 2 , 4 , 1 )
How i can order the ints array only between an interval that is given by the interval of numbers that are equals in the doubles array?
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