ifstream --- error maybe?

[Jason]

I wrote a piece of code that reads read in about 1000 int values from
a text file. I put a cout statement to verify that the input in the
code was working as anticipated. It seems to work fine until some
point when it just ouputs 0's. So I then took the code and made a app
that just read the file and it worked fine.

Does anyone have a suggestion.

Jason

[Niels Dybdahl]

Re: ifstream --- error maybe?

> I wrote a piece of code that reads read in about 1000 int values from[color=blue]
> a text file. I put a cout statement to verify that the input in the
> code was working as anticipated. It seems to work fine until some
> point when it just ouputs 0's. So I then took the code and made a app
> that just read the file and it worked fine.
>
> Does anyone have a suggestion.[/color]

Reduce the code to the smallest amount that still produces the problem and
post that code.

Niels Dybdahl

[Jacek Dziedzic]

Re: ifstream --- error maybe?

Jason wrote:
[color=blue]
> I wrote a piece of code that reads read in about 1000 int values from
> a text file. I put a cout statement to verify that the input in the
> code was working as anticipated. It seems to work fine until some
> point when it just ouputs 0's. So I then took the code and made a app
> that just read the file and it worked fine.
>
> Does anyone have a suggestion.[/color]

Yes. Post the code. We are programmers, not clairvoyants.

- J.

[Tom Widmer]

Re: ifstream --- error maybe?

On 27 Oct 2004 20:36:58 -0700, jspalding@gmail .com (Jason) wrote:
[color=blue]
>I wrote a piece of code that reads read in about 1000 int values from
>a text file. I put a cout statement to verify that the input in the
>code was working as anticipated. It seems to work fine until some
>point when it just ouputs 0's. So I then took the code and made a app
>that just read the file and it worked fine.
>
>Does anyone have a suggestion.[/color]

How are you checking for the end of the input? You should do something
like this:

int i = 0;
for(; i != 1000; ++i)
{
int val;
if (!(stream >> val))
break;
//assign val to whatever
}

if (i < 1000)
{
//something went wrong
//check stream.eof(), stream.bad() and stream.fail().
}

Tom