Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c > #17145

Re: K&R p.97

Show all headers | View raw

On 02/12/12 11:18 AM, Tom wrote:
> On Feb 11, 9:36 pm, Ian Collins<ian-n...@hotmail.com>  wrote:
>
>> Followed by a return.  This function has done its job (extracting an
>> integer from the stream) so it has to push the last character it read
>> back into the stream.  If it didn't, that character would be lost.

> Yes, I see your point. Thank you.
>
> However, if the function is called using the for loop on p.96 then we
> will see the behaviour I described, won't we?

There isn't a loop on that page.  But yes, if you where to blindly call 
the function without checking the result you would be in a loop.

> The code that calls the function should account for a non-numerical
> character, but it seems like the code on p.96 does not.

The code is nothing more than a function to read an integer.  Whatever 
calls it determines what to do next.

-- 
Ian Collins

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

K&R p.97 Tom <t.scrace@gmail.com> - 2012-02-11 12:46 -0800
  Re: K&R p.97 Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-02-11 13:25 -0800
  Re: K&R p.97 Ian Collins <ian-news@hotmail.com> - 2012-02-12 10:36 +1300
    Re: K&R p.97 Tom <t.scrace@gmail.com> - 2012-02-11 14:18 -0800
      Re: K&R p.97 Ian Collins <ian-news@hotmail.com> - 2012-02-12 11:38 +1300
        Re: K&R p.97 Tom <t.scrace@gmail.com> - 2012-02-11 14:44 -0800
          Re: K&R p.97 Ian Collins <ian-news@hotmail.com> - 2012-02-12 14:34 +1300
      Re: K&R p.97 Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-02-11 22:52 +0000
  Re: K&R p.97 Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-02-11 17:09 -0500

csiph-web