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#include <stdlib.h>
#include <string.h>
 
void func(void) {
  size_t resize = 1024;
  size_t alignment = 1 << 12;
  int *ptr;
  int *ptr1;

  if ((ptr = aligned_alloc(alignment, sizeof(int))) == NULL) {
    /* Handle error */
  }

  if ((ptr1 = aligned_alloc(alignment, resize)) == NULL) {
    /* Handle error */
  }

  if ((memcpy(ptr1, ptr, sizeof(int)) == NULL) {
    /* Handle error */
  }

  free(ptr);
}