Re: Division in loop

Where do you initialize the variable size and to what value ?

On Tue, Sep 8, 2009 at 10:40 AM, Randi Botse <[email protected]> wrote:
>
> hi all,
>
> ....
> int fd, fdp;
> unsigned int size;
> int progress = 0;
> size_t bytes = 0;
> void *buffer;
> ....
>
> /* open fd from a device then create fdp, allocate buffer,, etc. */
>
> while (bytes < size) {
>        ret = read(fd, buffer + bytes, size - bytes);
>        if (ret == -1) {
>            perror("read");
>            return -1;
>        }
>        ret = write(fdp, buffer + bytes, ret);
>        if (ret == -1) {
>            perror("write");
>            return -1;
>        }
>        bytes += ret;
>
>        progress = (int) ((bytes / size) * 100);
>        printf("\rcompleted: %i%%", progress);
>        fflush(stdout);
>    }
>
> ....
>
> I run this loop to receive some data, the printf() seem not updated,
> the progress output is
> always in it's initial value until the loop was finished. but when i do...
>
> progress = (int) ((bytes / 2) * 100); /* change size to 2 (or random number) */
>
> then it's works... what's wrong here???
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Saurabh Sehgal
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