From: KONTRA Gergely <kgergely@...>
Date: 2003-08-21T21:09:28+09:00
Subject: Re: p format - ruby bug? - dumb program?

On 0813, KONTRA Gergely wrote:
> Hi!
> 
> Can I specify how strings are printed, when using the p function?
> I mean with ' or with " ?
> 
> ---
> During running a little program, which detects files with the same
> content, I get a ruby bug:
[...]
> processing dir c:\WINDOWS\SYSTEM\Drivers
> Ooops c:\WINDOWS\SYSTEM\VJOYD.VXD: No such file or directory -
> c:\WINDOWS\SYSTEM
> \DirectX\Migrate\vjoyd.vxd
> same.rb:4: [BUG] rb_sys_fail() - errno == 0
> ruby 1.8.0 (2003-08-04) [i386-mingw32]
> 
> 
> abnormal program termination

code snippet:
> def equalFiles? fn1, fn2
>   f1=File.open fn1,'r'
>   f2=File.open fn2,'r'
>   while chunk1=f1.read(512)
>     chunk2=f2.read(512)
>     return false if chunk1!=chunk2
>   end
>   return true
> end

The problem was: files are opened, but none of them are closed
explicitly. The ruby output is a bit misleading. Can it be improved?

Gergo
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