whitespaces

I have a text file with the line:

12/16/2008**10:21*AM***************969*happyclown.html

where *=whitespace. There are 19 whitespaces. I have to use * to show you whitespace, because for some reason, this forum won't allow more than a single whitespace between words or colums. And the tiny little forum compose box makes formatting a nightmare.

So I wrote a program to count the whitespaces.

Code:

---

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

int main(void)
{
    FILE *openfile;
    int whitespacecount = 0, tabspacecount = 0;
    int c;

    /* Open file for reading */

    if( (openfile = fopen("directorylisting.txt", "rt")) == NULL )
    {
        perror("\ndirectorylisting.txt");
        exit(EXIT_FAILURE);
    }

    /* Count whitespaces while not EOF, or end of string */

    while( (c = getc(openfile) != EOF) && (c = getc(openfile) != '\0'))
    {
        if (c = ' ')
        whitespacecount++;
        if (c = '\t')                    /* try to count columns of whitespace */
        tabspacecount++;
    }
    printf("The number of whitespaces is %d\n", whitespacecount+1);
    printf("The number of tabspaces is %d\n", tabspacecount+1);

    return 0;
}

---

But when I run the program, the output is 29, instead of 19 whitespaces. Why?

Thanks. :)

What I find even stranger is that you're calling getc() twice in each loop (so you're skiping every 2nd char) but yet you get more spaces than you expected, when I would expect you to get about half.

Something else you may want to check is this:

Code:

---

if (c = ' ')
...
if (c = '\t')

---