Copy the one array elements to another array in c

Copying Array Elements in C: A Comprehensive Guide

To copy the elements of one array to another array in C, we can use the following steps:

1. Declare two arrays of the same type and size.
2. Iterate over the first array and copy each element to the second array.
3. After the loop has finished iterating, the second array will contain a copy of the first array.

How to copy the elements of one array to another array in C:

#include <stdio.h>

int main() {
  int arr1[] = {1, 2, 3, 4, 5};
  int arr2[5];

  for (int i = 0; i < 5; i++) {
    arr2[i] = arr1[i];
  }

  // Print the contents of the second array.
  for (int i = 0; i < 5; i++) {
    printf("%d ", arr2[i]);
  }
  printf("\n");

  return 0;
}

Output:

1 2 3 4 5

We can also use the memcpy() function to copy the elements of one array to another array in C. The memcpy() function copies a block of memory from one location to another.

The function takes three arguments:

• The destination pointer.
• The source pointer.
• The number of bytes to copy.

copy the elements of one array to another array using the memcpy() function,

#include <stdio.h>
#include <string.h>

int main() {
  int arr1[] = {1, 2, 3, 4, 5};
  int arr2[5];

  // Copy the elements of arr1 to arr2 using the memcpy() function.
  memcpy(arr2, arr1, sizeof(arr1));

  // Print the contents of the second array.
  for (int i = 0; i < 5; i++) {
    printf("%d ", arr2[i]);
  }
  printf("\n");

  return 0;
}

Output:

1 2 3 4 5

Which method to use to copy the elements of one array to another array in C depends on your specific needs. If you need to copy a small number of elements, then you can use the for loop method. If you need to copy a large number of elements, then you can use the memcpy() function.

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Further Reading:

 For further information and examples, Please visit[ C-Programming From Scratch to Advanced 2023-2024]

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