How to exit a while-loop?

Question

``` #include <stdio.h> main(void) { char ch; while (1) { if ((ch = getchar()) != EOF) { break; } putchar(ch); } return 0; } ``` How do I escape from this `while`? I had tried with EOF but it didn't work.

Accepted Answer

I think you mean:

```
int ch;
```

Because `EOF` won't fit in a `char`.

Also:

```
if ((ch=getchar()) == EOF)
       break;
```

Your logic is backwards.

How to exit a while-loop?

Solution

Problem