Re: Summing a comma delinted file

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#571

From: Rich Churcher
Date: Sun, 23 Sep 2001 22:48

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"Chris \( Val \)" <chrisvalNOSPAM@NOSPAMbigpond.com.au> writes:

> Hi Wayne, when using the bitwise operator to perform extraction,

Er, that's the stream extraction operator :o)


> it will terminate it's reading upon any whitespace it encounters and
> then move to the next appropriate block of data.

...unless noskipws is used.


[ snip ]
>     if (!instream)
>       {
>         cout << "Input file opening failed.\n";
>         EXIT_FAILURE;

Don't you mean,

  exit( EXIT_FAILURE );

?


>       }
> 
>     if (!outstream)
>       {
>         cout << "Output file opening failed.\n";
>         EXIT_FAILURE;
>       }
> 
>     while (!instream.eof( ))

No, don't do that. eof() only returns true after there has been an
attempt to read past the end of file. Instead, you can test for
success or failure of the input operation:

  while( getline( instream, Record[ Count ], ',' ) )
  {
    // ...

[ examples not compiled or tested ]

-- 
Cheers,  // First time posting?  READ THIS:
Rich.    // http://snurse-l.org/acllc-c++/faq.html

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From: Rich Churcher <churcher@ihug.com.au>
Newsgroups: alt.comp.lang.learn.c-c++,borland.public.cppbuilder.language
Subject: Re: Summing a comma delinted file
Date: 24 Sep 2001 08:48:12 +1000
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