Re: Reading a file from the back

From	Eli the Bearded <*@eli.users.panix.com>
Newsgroups	comp.os.linux.misc
Subject	Re: Reading a file from the back
Date	2020-04-13 20:01 +0000
Organization	Some absurd concept
Message-ID	<eli$2004131559@qaz.wtf> (permalink)
References	<r6hq2v$5bd$2@dont-email.me> <slrnr93djo.r2l.whynot@orphan.zombinet> <eli$2004122102@qaz.wtf> <slrnr987vp.kqh.whynot@orphan.zombinet>

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In comp.os.linux.misc, Eric Pozharski  <whynot@pozharski.name> wrote:
> Eli the Bearded wrote:
>> Need I go on?
> 
> Yes, please continue.

Detecting a read of a sparse file, one can just print blocks of nulls
rather than reading, reversing, and then printing blocks of nulls.

> Might be so, I should contemplate on this.  Also, 'scalar' is useless
> here.

Are you sure?

$ perl-5.24.3 -le '$a = "yes"; print reverse $a; print scalar reverse $a'
yes
sey

I see a difference using scalar.

Elijah
------
checked the output of his code before posting it

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Reading a file from the back Dieter Britz <dieterhansbritz@gmail.com> - 2020-04-07 12:01 +0000
  Re: Reading a file from the back Vasco Costa <vasco.costa@invalid.invalid> - 2020-04-07 12:12 +0000
  Re: Reading a file from the back Fenris <fenris@invalid.invalid> - 2020-04-07 12:12 +0000
  Re: Reading a file from the back Rich <rich@example.invalid> - 2020-04-07 15:18 +0000
    Re: Reading a file from the back Jim Jackson <jj@franjam.org.uk> - 2020-04-10 19:21 +0000
      Re: Reading a file from the back Eli the Bearded <*@eli.users.panix.com> - 2020-04-10 20:37 +0000
        Re: Reading a file from the back Eric Pozharski <whynot@pozharski.name> - 2020-04-11 15:22 +0300
          Re: Reading a file from the back Eli the Bearded <*@eli.users.panix.com> - 2020-04-13 01:03 +0000
            Re: Reading a file from the back Eric Pozharski <whynot@pozharski.name> - 2020-04-13 11:16 +0300
              Re: Reading a file from the back Eli the Bearded <*@eli.users.panix.com> - 2020-04-13 20:01 +0000
                Re: Reading a file from the back Eric Pozharski <whynot@pozharski.name> - 2020-04-14 12:14 +0300
                Re: Reading a file from the back Eli the Bearded <*@eli.users.panix.com> - 2020-04-14 16:50 +0000
      Re: Reading a file from the back Rich <rich@example.invalid> - 2020-04-10 21:40 +0000
  Re: Reading a file from the back The Natural Philosopher <tnp@invalid.invalid> - 2020-04-08 08:55 +0100

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