binary file to an array

[newprog]

I'm trying to take a binary file and pass it into an array. The problem is, that the program will only read half of the values in the file and report them all as zero. Any help would be great.

double input (double array[])
{
	int dblsize = sizeof(double), count;
	FILE *ifp;
	ifp = fopen(INFILE, "rb");
	if (ifp == NULL)
	{
		printf ("Error opening file.\n");
	}
	else
	{
		count = fread(array, dblsize, MAXDATA , ifp);
	}
	return count;
}

[itsme86]

Did you create the file on the same computer? Binary files are highly non-portable. This simple test works fine for me:

itsme@itsme:~/C$ cat dblbin.c
#include <stdio.h>

int main(void)
{
  double array[] = { 3.4, 7.2, 95.7, 104.9, 0.13 };
  FILE *fp;
  int count;
  int i;

  if(!(fp = fopen("dblbin.test", "wb")))
  {
    puts("Couldn't open dblbin.test for writing!");
    return 1;
  }

  count = fwrite(array, sizeof(double), 5, fp);
  fclose(fp);
  printf("Wrote %d items.\n", count);

  if(!(fp = fopen("dblbin.test", "rb")))
  {
    puts("Couldn't open dblbin.test for reading!");
    return 1;
  }

  count = fread(array, sizeof(double), 5, fp);
  fclose(fp);
  printf("Read %d items.\n", count);

  for(i = 0;i < count;++i)
    printf("%f ", array[i]);
  putchar('\n');

  return 0;
}

itsme@itsme:~/C$ ./dblbin
Wrote 5 items.
Read 5 items.
3.400000 7.200000 95.700000 104.900000 0.130000

[newprog]

I did creat the file on the same computer, and its saved under notepad, maybe I wrote the file wrong. If I bring up the file in notepad should it be a series of ones and zeros? If so, then the file has a serious problem.

[bithub]

First of all, if you saved a binary file under notepad, then you are going to have problems with the file when you try and open/read it in your program.

If I bring up the file in notepad should it be a series of ones and zeros?

No, it should be random gibberish.

[newprog]

Ok, then that explains the problem. Thanks