Re: What is the difference between (r+ and w+)

From	Richard Heathfield <rjh@cpax.org.uk>
Newsgroups	comp.lang.c
Subject	Re: What is the difference between (r+ and w+)
Date	2017-06-18 21:21 +0100
Organization	Fix this later
Message-ID	<oi6n60$ror$2@dont-email.me> (permalink)
References	(5 earlier) <oi4p0m$8on$1@dont-email.me> <87h8zd4d9n.fsf@bsb.me.uk> <oi6ck7$1n7$1@news.mixmin.net> <5946b81e.645125@news.xs4all.nl> <oi6mtk$jl7$1@news.mixmin.net>

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On 18/06/17 21:13, Good Guy wrote:
> On 18/06/2017 18:30, Richard Bos wrote:
>> Since when are the printf() and scanf() _functions_ _defined_ in
>> <stdio.h>? All I can find are declarations... Or were you under the
>> impression that a declaration is all there is to a function?
>
> Functions don't have to be in one file.

Right.

> They can be in any file as
> along as you have prototyped them to be available in your programs.

Right.

> In
> C stdio.h is when you find it and the actual functions is part of the
> compiler and you may or may not be able to see them.

Right. But one place you certainly *won't* see them is in <stdio.h>.

> For example, I
> might write a function "encode (variables here)" but I may not put it in
> the main program file because it is not necessary.  If you think you can
> run printf() without stdio.h then good luck to you.

Agreed, but that doesn't mean printf is /in/ stdio.h.

-- 
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

Thread

What is the difference between (r+ and w+) Christopher <invalid@invalid.invalid> - 2017-06-17 23:59 -0100
  Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-17 17:51 -0700
    Re: What is the difference between (r+ and w+) Christopher <invalid@invalid.invalid> - 2017-06-18 00:00 -0100
      Re: What is the difference between (r+ and w+) Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-17 21:32 -0400
        Re: What is the difference between (r+ and w+) Christopher <invalid@invalid.invalid> - 2017-06-18 00:50 -0100
          Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 03:40 +0100
            Re: What is the difference between (r+ and w+) jacobnavia <jacob@jacob.remcomp.fr> - 2017-06-18 11:48 +0200
              Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 13:13 +0100
                Re: What is the difference between (r+ and w+) Gareth Owen <gwowen@gmail.com> - 2017-06-18 16:20 +0100
            Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-18 14:49 +0100
              Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 15:46 +0100
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-19 00:16 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-19 05:37 +0100
                Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-19 09:25 -0700
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-19 17:35 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-19 18:19 +0100
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-19 20:51 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-19 21:16 +0100
                Re: What is the difference between (r+ and w+) Tim Rentsch <txr@alumni.caltech.edu> - 2017-06-19 04:58 -0700
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-19 17:43 +0100
                Re: What is the difference between (r+ and w+) Tim Rentsch <txr@alumni.caltech.edu> - 2017-06-19 22:16 -0700
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-20 11:53 +0100
                Re: What is the difference between (r+ and w+) Tim Rentsch <txr@alumni.caltech.edu> - 2017-06-20 22:45 -0700
              Re: What is the difference between (r+ and w+) Good Guy <hello.world@example.com> - 2017-06-18 18:17 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 18:20 +0100
                Re: What is the difference between (r+ and w+) bartc <bc@freeuk.com> - 2017-06-18 18:27 +0100
                Re: What is the difference between (r+ and w+) jacobnavia <jacob@jacob.remcomp.fr> - 2017-06-20 11:11 +0200
                Re: What is the difference between (r+ and w+) bartc <bc@freeuk.com> - 2017-06-20 10:27 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-20 10:54 +0100
                Re: What is the difference between (r+ and w+) jacobnavia <jacob@jacob.remcomp.fr> - 2017-06-20 12:25 +0200
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-20 12:34 +0100
                Re: What is the difference between (r+ and w+) jameskuyper@verizon.net - 2017-06-20 05:37 -0700
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-20 14:11 +0100
                Re: What is the difference between (r+ and w+) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-20 14:35 +0100
                Re: What is the difference between (r+ and w+) raltbos@xs4all.nl (Richard Bos) - 2017-06-18 17:30 +0000
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 21:21 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 21:23 +0100
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 21:47 +0100
                Re: What is the difference between (r+ and w+) Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-06-18 17:01 -0400
                Re: What is the difference between (r+ and w+) "James R. Kuyper" <jameskuyper@verizon.net> - 2017-06-19 10:41 -0400
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 21:50 +0100
                Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-18 13:52 -0700
                Re: What is the difference between (r+ and w+) jacobnavia <jacob@jacob.remcomp.fr> - 2017-06-20 11:16 +0200
                Re: What is the difference between (r+ and w+) raltbos@xs4all.nl (Richard Bos) - 2017-06-26 15:54 +0000
                Re: What is the difference between (r+ and w+) Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-06-18 17:13 -0400
                Re: What is the difference between (r+ and w+) Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-06-18 17:17 -0400
                Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-18 15:14 -0700
                Re: What is the difference between (r+ and w+) Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-06-18 18:24 -0400
                Re: What is the difference between (r+ and w+) Tim Rentsch <txr@alumni.caltech.edu> - 2017-06-19 04:11 -0700
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 23:01 +0100
          Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-17 19:55 -0700
            Re: What is the difference between (r+ and w+) Christopher <invalid@invalid.invalid> - 2017-06-18 02:10 -0100
              Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 04:15 +0100
              Re: What is the difference between (r+ and w+) raltbos@xs4all.nl (Richard Bos) - 2017-06-18 08:31 +0000
                Re: What is the difference between (r+ and w+) Good Guy <hello.world@example.com> - 2017-06-18 18:28 +0100
                Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-18 11:25 -0700
                Re: What is the difference between (r+ and w+) raltbos@xs4all.nl (Richard Bos) - 2017-06-18 19:13 +0000
                Re: What is the difference between (r+ and w+) David Kleinecke <dkleinecke@gmail.com> - 2017-06-18 14:30 -0700
                Re: What is the difference between (r+ and w+) Richard Heathfield <rjh@cpax.org.uk> - 2017-06-18 23:04 +0100
              Re: What is the difference between (r+ and w+) GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-06-18 10:43 +0200
                Re: What is the difference between (r+ and w+) Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-18 10:33 -0400
                Re: What is the difference between (r+ and w+) GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-06-19 01:27 +0200
                Re: What is the difference between (r+ and w+) Jerry Stuckle <jstucklex@attglobal.net> - 2017-06-18 21:16 -0400
      Re: What is the difference between (r+ and w+) Ian Collins <ian-news@hotmail.com> - 2017-06-18 13:45 +1200
      Re: What is the difference between (r+ and w+) Keith Thompson <kst-u@mib.org> - 2017-06-17 19:05 -0700

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