C :: How To Create Array Who Point To Some Value
Oct 15, 2014
I have to create dynamic array, where each element of it points to some value. I know how to create dynamic array
Code: array_record * record_1 = (array_record*)malloc( (group!/(2!(group!-2)!)) *sizeof(array_record));
But i don't know how i create this case. for example what i want if array elements are:
Code:
index value value
0 01 -> 345
1 02 -> 457
2 03 -> 689
3 21 -> 634
so if i have value somewhere 01 match with 01 in this array it display 345. how i can implement it?
View 1 Replies
ADVERTISEMENT
Feb 28, 2014
I'm trying to create an array of pointers to pointers which will point to array of pointers (to strings) I tried
Code:
int i;
char *string[]={
"my name is dave",
"we like to dance together",
"sunny day",
"hello",
[code]...
the app keeps crashing , I don't know how to make the array-elements to point to another array-elements..
View 4 Replies
View Related
Oct 26, 2013
I have a struct called Array and I'm to create a function to create a dynamic array that's fill with randomly generated integers from 0 to 50 (inclusive) and a function to destroy the array for freeing its memory. Below the code that I have written so far.
Code:
* Struct */
typedef struct {int *pArray; //the dynamic array
int length; //the size of the dynamic array}Array;
/* Function to create a dynamic array */
Array *initializeArray (int length) {int i;
}
[code]....
View 7 Replies
View Related
Jun 26, 2013
I have one code that use MPI broadcast and I want to change it into Asynchronous Point to Point communication. I am newbie in Parallel programming. Looking for implementation of one simple same program in broadcast and P2P ?
View 6 Replies
View Related
Apr 6, 2013
Write a function named "sum" that takes as its arguments the following:
(1) an array of floating point values.
(2) an integer that tells how many floating point values are in the array.
The function should return as its value the sum of the floating point values. For example, if the array that's passed to the function looks like this:
0 1 2 3 4
5.8|2.6|9.0|3.4|7.1
The function should return the value as 27.9 as its value...I know I need to declare and intialize the array in the main function. I don't how to write the sum function.
View 2 Replies
View Related
Jan 21, 2014
This code work perfectly, as follows.
Code #A:
#include <iostream>
#include <cstring>
#include <vector>
using namespace std;
typedef std::vector <void *> gr_vector_void_star;
gr_vector_void_star output_items;
[Code] .....
Output of above code #A:
char * sentence = "Angel";
for (int i=0; i < 5; i++)
{ out[i] = sentence[i]; } // error: invalid conversion from 'char' to 'char*' [-fpermissive]
It fails to compile with error message "invalid conversion from 'char' to 'char*'".
View 19 Replies
View Related
Jun 14, 2012
I want to create template of of Array in order to have possibility use this template for classes Line and Point.
Code:
// Array.h
// Templated Array class containging Ts
#ifndef Array_H
#define Array_H
template <class T=double> class Array {
[Code] .....
View 10 Replies
View Related
Nov 24, 2014
I got this program to create an array of playing cards and assign the values and suits and shuffle the array. I'm at the point where I need to output the cards but I need to burn the first card by making it output "**" instead of the card. my cards[] is a constant so I can's assign the first card as such.
void showCards(const int cards[], int numCards, bool hideFirstCard) {
if (cards[0]) {
hideFirstCard=true;
cards[0] = '**';
} for(int a = 0; a <= numCards; a++) {
cout >> showCard(cards[a]);
} }
View 1 Replies
View Related
Jan 16, 2013
Please consider the following code :
#include <iostream>
using namespace std;
class superclass;
class subclass1;
class subclass2;
[Code] ....
As you can see I want to create a dynamically allocated storage of references to a parent class each of which can then point to a child class, how ever I do not know how to extract the child class out again from that array so i may access its variable b.
View 2 Replies
View Related
Dec 1, 2013
I am trying to create a box outside my 9x9 array. However, my box did not cover up everything.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <conio.h>
#define row 19
#define col 19
[Code] ....
View 6 Replies
View Related
Feb 10, 2015
I am trying to see if I can create an array of nodes. I think I have it down somewhat but this is what I have.
Code:
#include <iostream>
using namespace std;
/*This is a template of a person....sorta*/
class person{
public:
int data[32];
bool selected = false;
person(){
[Code]...
I am trying to see if there is a way for me to create a 86 slot array of person nodes. I am not sure how to do it and how to access them afterwards. I know that I am creating the bitstring of person correctly but I am not sure how to get the array of person going.
View 7 Replies
View Related
Dec 19, 2014
Is it possible to create an 8 dimensional array in C? If no, then what can I do to improvise or let say bypass the limit?
View 7 Replies
View Related
Nov 3, 2014
I wanted to do this: Accept a line of input from user and save it to an array1 and copy its contents to other array in a set of arrays and then input another line to array1 and then copy it to next array in the same set and so on.... I know it is confusing but I can put it like that I want to create an array of arrays (Set of arrays). How can I do so?
I wrote a code to input the line in an array and tried to copy it another array of pointers, but pointers are just addresses so the same adress is copied again and again so, all the pointers of the array point to one address only. The code doesn't print anything when I try to print all the lines that were saved.
Code:
#include <stdio.h>
#include <stdlib.h>
#define MAXLEN 1000
#define MAXSIZE 100
int getline(char [], int );
void storage(char line[]);
[Code] .....
View 2 Replies
View Related
Feb 14, 2013
What I am trying to do is to have the program create 2D array that for each row, no two numbers are the same and only consists numbers between 1-9. The array lists out every possible combinations. Supposely I do not know the number of possible combinations, I had it keep adding new rows until there are no more possiblities left.
The problem with my code is when I print out the completed array, it gives out really, really large numbers. But when I print the array from inside the first loop, it gives correct values. I do not know exactly what happened.
Code:
#include <stdio.h>
int main(void) {
int double_digit[1][2];
int a = 1;
int b = 1;
[Code] ....
View 5 Replies
View Related
Sep 16, 2014
My assignment is use a 3D array to create an image. Use an array of the form arr[300][200][3]. For this homework, you need to use an array of the form arr[3][400][500]. It will have 400 rows and 500 columns. You need to first initialize the array as described in class and after that write the array to a ppm image file. When viewed using Gimp, it should display USM. The letters would be 200 pixels high and 100 pixels wide each. Use at least 15 pixels for the width of the stroke. Use different colors for each letter and a different color for the background.This is what I have so far.
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
void initialize(unsigned char a[][200][3], int nrows, int ncols, int nc);
void printAll(unsigned char a[][200][3], int nrows, int ncols, int nc);
[code]....
View 3 Replies
View Related
Apr 24, 2013
I want to create 4 dimensional array, in that first three dimenstional are fixed size and the final index will be on 0 to N-numbers.
E.g., double array[500][25][10][<NOT FIXED>].. So I cant create statically, because the index size are more. Also I have tried 4 dimenstional vector, but its giving 2 problem.
(i) I am storing 4th dimenstion size is more than vector[0][0][0].max_size()
(ii) Storing and Retrieving its more time in vector
So, any other solution to store large array which is 3 index is FIXED and final one is not FIXED?
View 16 Replies
View Related
Sep 23, 2014
m_sName-- character array shall be 128 bytes
How do i create a character array that has 128 bytes?
View 1 Replies
View Related
Jan 2, 2013
I am trying to create an array with the size of the first value of one file wich is the same of the first line because the first line only have one value. Here is how i am trying to do it ...
FILE * fich;
int test;
fich=fopen(nome_ficheiro,"r");
fscanf_s(fich,"%d",&test);
int np=test;
No*aux=primeiro;
[Code] .....
View 3 Replies
View Related
Mar 6, 2015
I working on a big program, and it involves character arrays. What I want my function to do is create a seperate array that consists of the same number of "*" as there are letters in the word from the text file. For example, if the word sarc was up, the function show make ****. This was my attempt at it. I managed to reach this far. I can only fit in one "*". This is part of jumble game program I'm trying to make, and its in C language.
insert Code: void partialWord(char current[]){
int n;
int i;
n = strlen(current);
for (i = 0; i < n; i++){
current[i] = strcpy(current,"*");
}
printf("%s
", current);
}
View 7 Replies
View Related
Mar 14, 2014
Is it possible to create an array of watchdog timers in vxworks ? If so how do I do it. I need to run a timer each time a sensor is set high.
View 1 Replies
View Related
May 29, 2013
I have to create array with size that returns from method
int val=test();
int arr[val];
int test()
{
// Some logic and getting result as 5
return 5;
}
I would like to create arr with 5. how can i do this.
View 7 Replies
View Related
Mar 31, 2013
I am trying to create an array with 800 element that are randomly arranged within the array. Once this is complete i want to use the bubble sort algorithm to organize the number in ascending order. I have the following code but it doesn't seem to work,
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define BUBBLE 800
int main() {
int array[BUBBLE];
[Code]...
View 2 Replies
View Related
Mar 10, 2014
What is wrong with my function why does it spit out huge numbers? And how do i use malloc or calloc to create an array in dynamic memory, and return a pointer to this array
Code:
#include <stdio.h>#include <stdlib.h>
int fibonacci(int n)
{
int i;
long int fib[40];
fib[0]=0;
fib[1]=1;
for(i=2;i<n;i++){
fib[i] = fib[i-1] + fib[i-2];
[Code]....
View 12 Replies
View Related
Apr 18, 2012
let's say I have an IntPtr that points to the raw data of System.Drawing.Bitmap. is there any way to create a byte array from that IntPtr without copying the data? I'm a pretty experienced C++ programmer, so I can call ToPointer() on it and convert to a byte* to work with it as a pointer, which is no big deal for me, but using a pointer and doing pointer arithmetic increases the risk of bugs, so I'd prefer not to do it that way if there's another way.
View 4 Replies
View Related
Feb 2, 2015
I'm writing code to create an array of integer and let user input choice to display, replace, add new element, etc.I created a header file in the header file there's a function:
Code:
int display_one_element(int* array, int num_of_elements, int position) {
if(num_of_elements < position || position < 0) {
printf("Position out of bound.
");
return 1;
}
return array[position-1];
}
in main I write a function call:
Code:
display_one_element(array, *p_num_elements, position);
My code seems to work fine but there's an error message right next to my function call:
1.too many arguments provided to function like macro invocation
2.Expression result unused
I tried to move the function from header file to c source file. but other functions in the header file works fine and this doesn't work with the error message.
View 3 Replies
View Related
Mar 24, 2013
I'm trying to create a two dimensional array that displays zeroes in a 10 by 10 format. But I don't really know how.I've been playing around and this is what I have so far:
Code:
#include<stdio.h>
int main(void) {
int my_array[10][10]={0};
int i,j;
[code]....
View 6 Replies
View Related
