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Groups > comp.lang.c > #90578

Re: High level C

From BartC <bc@freeuk.com>
Newsgroups comp.lang.c
Subject Re: High level C
Date 2016-07-19 15:01 +0100
Organization A noiseless patient Spider
Message-ID <nmlbr3$b2c$1@dont-email.me> (permalink)
References (14 earlier) <nmj351$upa$1@dont-email.me> <nmj5tr$8oi$1@dont-email.me> <nmkh0q$ltf$1@dont-email.me> <nmkuku$u3u$1@dont-email.me> <8760s1g4vb.fsf@bsb.me.uk>

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On 19/07/2016 14:00, Ben Bacarisse wrote:
> ...about (> foo bar baz quux)
>
> BartC <bc@freeuk.com> writes:
>> On 19/07/2016 07:23, Udyant Wig wrote:
> <snip>
>>>   Do you implicitly accept my point about
>>>
>>> foo > bar > baz > quux
>>>
>>>   ?
>>
>> Yes, but it's the same one as using +, which can be emulated even in C
>> by using a function gt(foo,bar,baz,quuz).
>
> How?

I was thinking of something like the code below.

The GT() macro is for signed ints; separate versions are needed for 
different primitive types (but not for different widths).

This version is limited to 10 operands but that can be probably be 
increased to any reasonable number. (But by then, you'd want a function 
that takes an arrray really.)

The example above would be written as GT(foo,bar,baz,quuz).

#include <stdio.h>
#include <stdarg.h>

#define VA_NUM_ARGS(...) VA_NUM_ARGS_IMPL(__VA_ARGS__,\ 
10,9,8,7,6,5,4,3,2,1)
#define VA_NUM_ARGS_IMPL(_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,N,...) N

typedef long long int i64;

int gt_i64(int count,...){
va_list ap;
i64 a,b;
int i;

va_start(ap,count);

a=va_arg(ap,i64);
if (count<=1) return 0;

for (i=1; i<count; ++i){
     b=va_arg(ap,i64);
     if (a<=b) return 0;
     a=b;
}
va_end(ap);
return 1;
}

#define GT(...) gt_i64(VA_NUM_ARGS(__VA_ARGS__),__VA_ARGS__)

int main(void){

printf("%d\n",GT(30,20,10));

}

-- 
Bartc

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High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-15 23:36 +0200
  Re: High level C supercat@casperkitty.com - 2016-07-15 15:17 -0700
    Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 09:09 +0200
      Re: High level C supercat@casperkitty.com - 2016-07-17 20:02 -0700
  Re: High level C Keith Thompson <kst-u@mib.org> - 2016-07-15 15:17 -0700
    Re: High level C fir <profesor.fir@gmail.com> - 2016-07-31 23:55 -0700
  Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-15 23:27 +0100
    Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 09:13 +0200
      Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-16 02:07 -0700
        Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 11:07 +0100
          Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-16 03:29 -0700
            Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 13:40 +0100
            Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-17 11:57 +0530
          Re: High level C BartC <bc@freeuk.com> - 2016-07-16 11:30 +0100
            Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-16 03:43 -0700
              Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 13:53 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-16 07:49 -0700
                Re: High level C Jean-Marc Bourguet <jm@bourguet.org> - 2016-07-16 17:08 +0200
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-16 09:09 -0700
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 16:26 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 18:05 +0200
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 20:15 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 23:44 +0200
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-07-23 19:39 +0000
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-23 22:58 +0200
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-07-27 14:52 +0000
                Re: High level C Richard Heathfield <rjh@cpax.org.uk> - 2016-07-27 16:29 +0100
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-07-23 19:38 +0000
              Re: High level C BartC <bc@freeuk.com> - 2016-07-16 14:17 +0100
            Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 13:46 +0100
            Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-17 12:05 +0530
              Re: High level C BartC <bc@freeuk.com> - 2016-07-17 11:03 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-17 03:39 -0700
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-17 18:20 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-17 14:00 +0100
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-17 23:13 +0530
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-17 20:14 +0200
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-17 20:14 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-17 20:45 +0100
                Re: High level C Gareth Owen <gwowen@gmail.com> - 2016-07-17 21:00 +0100
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-18 09:48 +0530
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-18 00:55 -0700
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-18 22:25 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-18 11:40 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-18 05:05 -0700
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-18 22:59 +0530
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-18 22:50 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-18 19:07 +0100
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-19 11:53 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 11:15 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 14:00 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 15:01 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 15:26 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 15:57 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 17:13 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 18:14 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 19:20 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 19:46 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-20 02:44 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-20 10:59 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-20 03:07 -0700
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-21 01:44 +0100
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-21 18:58 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-21 17:20 +0100
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-21 20:52 +0100
                Re: High level C BartC <bc@freeuk.com> - 2016-07-21 21:14 +0100
                Re: High level C Keith Thompson <kst-u@mib.org> - 2016-07-21 13:23 -0700
                Re: High level C BartC <bc@freeuk.com> - 2016-07-21 21:50 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-22 12:52 +0200
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-22 04:03 -0700
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-22 23:56 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-22 20:09 +0100
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-22 23:49 +0530
                Re: High level C BartC <bc@freeuk.com> - 2016-07-22 20:37 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-19 19:16 +0200
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 19:17 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-19 21:07 +0200
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-20 02:36 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-19 07:27 -0700
                Re: High level C BartC <bc@freeuk.com> - 2016-07-19 16:27 +0100
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-07-19 08:43 -0700
                Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-19 19:14 +0100
                Re: High level C Jean-Marc Bourguet <jm@bourguet.org> - 2016-07-18 10:08 +0200
                Re: High level C Udyant Wig <udyant.wig@gmail.com> - 2016-07-18 23:04 +0530
      Re: High level C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-16 10:18 +0100
    Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-07-23 19:26 +0000
      Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-25 09:21 -0700
        Re: High level C luser droog <luser.droog@gmail.com> - 2016-07-25 10:19 -0700
          Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-28 10:31 -0700
            Re: High level C luser droog <luser.droog@gmail.com> - 2016-07-28 21:13 -0700
              Re: High level C supercat@casperkitty.com - 2016-07-29 09:05 -0700
                Re: High level C Keith Thompson <kst-u@mib.org> - 2016-07-29 09:30 -0700
                Re: High level C supercat@casperkitty.com - 2016-07-29 10:08 -0700
                Re: High level C Ike Naar <ike@iceland.freeshell.org> - 2016-07-29 17:57 +0000
                Re: High level C supercat@casperkitty.com - 2016-07-29 11:50 -0700
              Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-31 07:16 -0700
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-07-31 14:34 +0000
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-31 14:55 -0700
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-08-01 03:10 -0700
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-01 07:40 -0700
                Re: High level C Gareth Owen <gwowen@gmail.com> - 2016-08-01 19:43 +0100
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-01 10:21 -0500
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-08-03 13:14 +0000
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-05 08:40 -0700
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-08-05 09:28 -0700
                Re: High level C fir <profesor.fir@gmail.com> - 2016-08-05 09:55 -0700
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-05 15:51 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-05 18:43 +0200
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-05 15:43 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 00:52 +0200
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-08-10 12:42 +0000
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-11 12:24 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-07-31 16:42 +0200
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-31 12:59 -0700
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-07-31 17:12 -0500
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-31 17:12 -0700
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-01 00:54 -0500
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-01 08:08 -0700
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-01 12:58 -0500
                Re: High level C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-08-01 12:25 -0700
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-03 08:44 -0700
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-03 11:56 -0500
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-08-03 19:29 +0200
                Re: High level C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-08-03 13:45 -0400
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-03 13:23 -0500
                Re: High level C BartC <bc@freeuk.com> - 2016-08-03 19:27 +0100
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-08-03 21:04 +0200
                Re: High level C Gareth Owen <gwowen@gmail.com> - 2016-08-03 20:08 +0100
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-03 16:09 -0500
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-03 16:06 -0500
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-08-03 23:36 +0200
                Re: High level C Les Cargill <lcargill99@comcast.com> - 2016-08-03 19:44 -0500
                Re: High level C supercat@casperkitty.com - 2016-08-03 15:03 -0700
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-04 19:17 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-05 05:48 +0200
                Re: High level C Keith Thompson <kst-u@mib.org> - 2016-08-05 08:24 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-05 18:30 +0200
                Re: High level C Keith Thompson <kst-u@mib.org> - 2016-08-05 10:34 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-05 20:50 +0200
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-05 15:39 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 00:50 +0200
                Re: High level C Keith Thompson <kst-u@mib.org> - 2016-08-05 17:08 -0700
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 02:23 +0200
                Re: High level C raltbos@xs4all.nl (Richard Bos) - 2016-08-06 10:03 +0000
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 12:13 +0200
                Re: High level C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-08-06 11:10 -0400
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 17:40 +0200
                Re: High level C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-08-06 11:56 -0400
                Re: High level C Melzzzzz <mel@zzzzz.com> - 2016-08-06 17:51 +0200
                Re: High level C supercat@casperkitty.com - 2016-08-08 09:12 -0700
                Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-31 22:07 +0200
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-07-31 15:05 -0700
                Re: High level C Ian Collins <ian-news@hotmail.com> - 2016-08-03 11:22 +1200
                Re: High level C Tim Rentsch <txr@alumni.caltech.edu> - 2016-08-03 08:50 -0700
  Re: High level C BartC <bc@freeuk.com> - 2016-07-16 01:12 +0100
    Re: High level C Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-15 20:16 -0400
    Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 09:17 +0200
  Re: High level C Siri Cruise <chine.bleu@yahoo.com> - 2016-07-16 08:20 -0700
    Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-16 17:24 +0200
      Re: High level C Siri Cruise <chine.bleu@yahoo.com> - 2016-07-16 09:24 -0700
  Re: High level C carlglassberg@gmail.com - 2016-07-17 14:15 -0700
  Re: High level C carlglassberg@gmail.com - 2016-07-17 14:22 -0700
    Re: High level C jacobnavia <jacob@jacob.remcomp.fr> - 2016-07-17 23:58 +0200
  Re: High level C fir <profesor.fir@gmail.com> - 2016-08-02 13:20 -0700

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