[coconut]

Hi, I have a piece of code that reads from the cin stream and does some operations with the stream. Everything is working fine, except because I don't know how many lines the input is going to have and I am looking for a way to tell my code to keep reading new input and doing these operations until the end of the stream.

I'm pretty sure this is an easy issue, but I haven't been able to fix it! I'm trying to use a while loop like this:

while (std::ios::eofbit){
//Operations
}

But I must be forgetting something because the loop never ends :-/

Thanks!

This post has been edited by coconut: 18 July 2010 - 02:52 PM

[#define]

std::ios::eofbit is like a bitmask, so the while condition will always be true.

Could use eof(), good() is better. It tests for eof() as well as failed stream read.

// is = name of input stream
while (is.good()){
//Operations
}

[coconut]

Thanks! That worked but now it goes through the loop twice with the last set of inputs. Ie: if I was trying to get two numbers each time to sum them up and my input was:

2 1
3 5

The output is:

2 1 3
3 5 8
3 5 8

It's as if it took it one iteration too many :-/ Ideas? Thanks again!

[taylorc8]

Why hello ladies, is your problem fully resolved?

[coconut]

Yes! That worked perfect! Thanks!

[taylorc8]

Glad I could be of assistance.