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Groups > comp.lang.c > #61123

Re: Syntax error?

From Bartc <bc@freeuk.com>
Newsgroups comp.lang.c
Subject Re: Syntax error?
Date 2015-04-26 11:17 +0100
Organization A noiseless patient Spider
Message-ID <mhidu2$igd$1@dont-email.me> (permalink)
References <mhg0mq$f25$1@dont-email.me> <mhiaif$7fj$1@news.albasani.net>

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On 26/04/2015 10:19, Johannes Bauer wrote:
> On 25.04.2015 14:19, Bartc wrote:
>> How fast can you spot the problem in this code:
>>
>> *(int (*))((char*)sptr+8)=(*(int (*))((char*)x+8)/*(int (*))((char*)y+8));
>
> Since you already solved the mystery, I've got an unrelated question. Is
> there a reason why the code generate puts the "*" in braces for "int
> (*)"? I'm guessing there is, but I can't figure it out on the top of my
> head.

You mean, in parentheses?

This is just my algorithm for converting an internal representation of 
the type into C type-spec syntax. It was easier to put the parentheses 
in everywhere than to try and figure out where they can be omitted.

But I suppose I can suppress them in the simplest of cases such as the 
above.

(AFAIK this doesn't affect the resulting code in any way. But converting 
field selections to casts and offsets may be affecting code optimisation 
so I will try and tidy that up.)

-- 
Bartc

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Thread

Syntax error? Bartc <bc@freeuk.com> - 2015-04-25 13:19 +0100
  Re: Syntax error? Richard Damon <Richard@Damon-Family.org> - 2015-04-25 11:07 -0400
  Re: Syntax error? jacobnavia <jacob@jacob.remcomp.fr> - 2015-04-25 18:03 +0200
    Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-25 17:26 +0100
      Re: Syntax error? jacobnavia <jacob@jacob.remcomp.fr> - 2015-04-25 19:28 +0200
  Re: Syntax error? Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-04-26 11:19 +0200
    Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 11:17 +0100
      Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 11:36 +0100
        Re: Syntax error? Ben Bacarisse <ben.lists@bsb.me.uk> - 2015-04-26 13:40 +0100
          Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 19:27 +0100
            Re: Syntax error? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-04-26 12:38 -0700
              Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 22:26 +0100
            Re: Syntax error? Keith Thompson <kst-u@mib.org> - 2015-04-26 12:41 -0700
            Re: Syntax error? Ben Bacarisse <ben.lists@bsb.me.uk> - 2015-04-27 01:53 +0100
      Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 13:24 +0100
  Re: Syntax error? Tim Rentsch <txr@alumni.caltech.edu> - 2015-04-26 07:01 -0700
    Re: Syntax error? Bartc <bc@freeuk.com> - 2015-04-26 19:55 +0100
      Re: Syntax error? Robert Wessel <robertwessel2@yahoo.com> - 2015-04-27 02:39 -0500
      Re: Syntax error? Tim Rentsch <txr@alumni.caltech.edu> - 2015-04-28 08:34 -0700

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