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I have something like this code and I would like to know how to get the number of elements of the array I pass in, if th


I have something like this code and I would like to know how to get the number of elements of the array I pass in, if th

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I have something like this code and I would like to know how to get the number of elements of the array I pass in, if th
Tag : c , By : lili
Date : November 28 2020, 11:01 PM

will be helpful for those in need So int size does not actually give me the size of what I pass in, in the main function. How do I get the exact number of elements in the array that I pass in. , Pass it as parameter to myFunc.
#include <stdio.h>

void myFunc(int *array, size_t size)
{
    printf("Size = %zu\n", size);

    for (size_t i=0; i<size; i++)
    {
        printf("array[%zu] = %d\n", i, array[i]);
    }
}

int main(void)
{
    int array[]={1,2,3,4,5,6,7,8,9,10,11,12,13};

    myFunc(array, sizeof(array)/sizeof(array[0]));

    return 0;
}

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How do you Iterate a multidimesional array without knowing the number of dimensions and elements of the array being pass


Tag : chash , By : user157138
Date : March 29 2020, 07:55 AM
should help you out Would something like this work for you? It recurses the ranks so you can use a foreach() and get an array containing the current item's indices.
class Program
{
    static void Main(string[] args)
    {
        int[, ,] theArray = new int[2, 8, 12];
        theArray[0, 0, 1] = 99;
        theArray[0, 1, 0] = 199;
        theArray[1, 0, 0] = 299;

        Walker w = new Walker(theArray);

        foreach (int i in w)
        {
            Console.WriteLine("Item[{0},{1},{2}] = {3}", w.Pos[0], w.Pos[1], w.Pos[2], i);
        }

        Console.ReadKey();
    }

    public class Walker : IEnumerable<int>
    {
        public Array Data { get; private set; }
        public int[] Pos { get; private set; }

        public Walker(Array array)
        {
            this.Data = array;
            this.Pos = new int[array.Rank];
        }

        public IEnumerator<int> GetEnumerator()
        {
            return this.RecurseRank(0);
        }

        private IEnumerator<int> RecurseRank(int rank)
        {
            for (int i = this.Data.GetLowerBound(rank); i <= this.Data.GetUpperBound(rank); ++i)
            {
                this.Pos.SetValue(i, rank);

                if (rank < this.Pos.Length - 1)
                {
                    IEnumerator<int> e = this.RecurseRank(rank + 1);
                    while (e.MoveNext())
                    {
                        yield return e.Current;
                    }
                }
                else
                {
                    yield return (int)this.Data.GetValue(this.Pos);
                }
            }
        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        {
            return this.RecurseRank(0);
        }
    }
}

How to remove duplicate code if I create array with different number of elements?


Tag : chash , By : Thomas Plunkett
Date : March 29 2020, 07:55 AM
this will help I have some duplicate code: , First thing first ,
 1- move the export and simple display functionality into 2 different methods.
 2- Create a Client Object exactly once by using Singleton Pattern.

Console output does not show number of elements of array. Array Elements not accessible in code


Tag : javascript , By : Der Ketzer
Date : March 29 2020, 07:55 AM
help you fix your problem put await before axios.all(...).then(...) to wait for all the promises before doing the dispatch:
await axios.all(promises).then(function(results) {
  results.forEach(function(response) {
      temp.push(response.data);
  });
  return;
});

How to pass the number of elements of an array to a function


Tag : c , By : Pradeep Gowda
Date : March 29 2020, 07:55 AM
it fixes the issue I would like to pass a n number of elements part of an array to a function in order to calculate the average. Essentialy i would like to keep the number of elements dynamic in the code so that a custom number can be entered. , In main
  float num[n]; 
 int n,i,k; 
 float num[n]; 
 printf("Enter the numbers of elements: "); 
 scanf("%d",&k);
 int i,k; 

 printf("Enter the numbers of elements: "); 
 if (scanf("%d",&k) != 1) {
   puts("invalid size");
   return -1;
 }
 float num[k]; 
n = sizeof(num)/sizeof(int);
 float average(float num[], int n); 
printf("Average = %.2lf",average(num, k)); 
float average(float num[], int n)
{
  int i;
  float sum = 0.0;

  for(i = 0; i < n; ++i)
  {
    sum += num[i];
  }

  return sum / n;
}

How do I pass std::array as a template parameter with a varying number of elements in C++?


Tag : cpp , By : MikeW
Date : January 02 2021, 06:48 AM
I wish did fix the issue. You just specify the number of elements inside the template parameters.
template<class T, size_t N>
void func(std::array<T, N> arr) {

}
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