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passing two dimensional array to function in c

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Grotesque Gannet answered on January 22, 2022 Popularity 9/10 Helpfulness 2/10

answer passing two dimensional array to function in c

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passing two dimensional array to function in c

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#include <stdio.h>
#include <stdlib.h>

#define ROWS 3
#define COLS 2

void fun1(int (*)[COLS], int);

int main()
{
  int array_2D[ROWS][COLS] = { {1, 2}, {3, 4}, {5, 6} };
  int rows = ROWS;

  /* works here because array_2d is still in scope and still an array */
  printf("MAIN: %zu\n",sizeof(array_2D)/sizeof(array_2D[0]));

  fun1(array_2D, rows);

  return EXIT_SUCCESS;
}

void fun1(int (*a)[COLS], int rows)
{
  int i, j;
  int n, m;

  n = rows;
  /* Works, because that information is passed (as "COLS").
     It is also redundant because that value is known at compile time (in "COLS"). */
  m = (int) (sizeof(a[0])/sizeof(a[0][0]));
 
  /* Does not work here because the "decay" in "pointer decay" is meant
     literally--information is lost. */
  printf("FUN1: %zu\n",sizeof(a)/sizeof(a[0]));

  for (i = 0; i < n; i++) {
    for (j = 0; j < m; j++) {
      printf("array[%d][%d]=%d\n", i, j, a[i][j]);
    }
  }
}

Popularity 9/10 Helpfulness 2/10 Language c

Source: riptutorial.com

Tags: c dimensional function

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Contributed on Jun 06 2022

Grotesque Gannet

0 Answers Avg Quality 2/10

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2 dimensional array in c

Comment

#include<stdio.h>
int main(){
   /* 2D array declaration*/
   int abc[5][4];
   /*Counter variables for the loop*/
   int i, j;
   for(i=0; i<5; i++) {
      for(j=0;j<4;j++) {
         printf("Enter value for abc[%d][%d]:", i, j);
         scanf("%d", &abc[i][j]);
      }
   }
   return 0;
}

Popularity 10/10 Helpfulness 3/10 Language c

Source: beginnersbook.com

Tags: c

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Contributed on Jan 22 2022

Long Ladybird

0 Answers Avg Quality 2/10

passing two dimensional array to function in c

Comment

#include <stdio.h>
#include <stdlib.h>

#define ROWS 3
#define COLS 2

void fun1(int **, int, int);

int main()
{
  int array_2D[ROWS][COLS] = { {1, 2}, {3, 4}, {5, 6} };
  int n = ROWS;
  int m = COLS;

  fun1(array_2D, n, m);

  return EXIT_SUCCESS;
}

void fun1(int **a, int n, int m)
{
  int i, j;
  for (i = 0; i < n; i++) {
    for (j = 0; j < m; j++) {
      printf("array[%d][%d]=%d\n", i, j, a[i][j]);
    }
  }
}

Popularity 9/10 Helpfulness 3/10 Language c

Source: riptutorial.com

Tags: c dimensional di

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Contributed on Jun 06 2022

Grotesque Gannet

0 Answers Avg Quality 2/10

c pass two dimensional array to function

Comment

#include <stdio.h>
const int M = 3;
const int N = 3;
 
void print(int arr[M][N])
{
    int i, j;
    for (i = 0; i < M; i++)
      for (j = 0; j < N; j++)
        printf("%d ", arr[i][j]);
}
 
int main()
{
    int arr[][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
    print(arr);
    return 0;
}

Popularity 9/10 Helpfulness 1/10 Language c

Source: www.geeksforgeeks.org

Tags: c dimensional dimensio

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Contributed on May 22 2022

KeWols

0 Answers Avg Quality 2/10

passing two dimensional array to function in c

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