#define __USE_MINGW_ANSI_STDIO 1
#include <stdio.h>
#include <math.h>


int main()
{
  FILE *fptr;
    char fname[] = "Array_of_10_long_double.out";
    long double x, ld[10];
  int i;

  for(i=0; i<10; i++)
        ld[i] = sqrtl((long double)(i + 1));

    printf("long double array size: %d\n", sizeof(ld));

  fptr = fopen(fname,"wb");
  if(fptr)
    {
        fwrite(ld, 10, sizeof(long double), fptr);
    fclose(fptr);
  }
  else
    printf("Unable to open file.\n");

  fptr = fopen(fname,"rb");
  if(fptr)
    {
    for(i=0; i<10; i++)
        {
      fread(&x, 1, sizeof(long double), fptr);
      printf("%2d) %.21Lf\n", i + 1, x);
    }
    fclose(fptr);
  }
  else
    printf("Unable to open file.\n");

  return 0;
}