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


Groups > comp.lang.c++ > #67210

Re: TIL: C++17 sequences assignment the wrong way.

From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c++
Subject Re: TIL: C++17 sequences assignment the wrong way.
Date 2019-07-30 13:08 -0700
Organization None to speak of
Message-ID <ln7e7z4758.fsf@kst-u.example.com> (permalink)
References <20190718203039.263@kylheku.com> <jwvr26m0wbl.fsf-monnier+comp.lang.lisp@gnu.org> <assignment-20190720132739@ram.dialup.fu-berlin.de> <86r2678uvc.fsf@mailhub.linuxsc.com>

Show all headers | View raw


Tim Rentsch <tr.17687@z991.linuxsc.com> writes:
> ram@zedat.fu-berlin.de (Stefan Ram) writes:
>
>> Newsgroups: comp.lang.lisp,comp.lang.c++
>>
>> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>
>>> Do you happen to have a reference to this part of the spec?
>>
>> In the most recent draft, n4800, it's 7.6.18p1:
>>
>>    The right operand is sequenced before the left operand.
>>    
>>       . The assignment stores the value of the right operand
>>       into the object indicated by the left operand, so the
>>       operations involved are:
>>    
>>         First, obtain the value of the right operand,
>>         then, store this value into the left operand.
>>
>> Therefore some kind of right-to-left sequencing is part
>> of the semantics the assignment already always had, in
>> any language.
>
> This summary sentence is utter nonsense.

What does the phrase "This summary sentence" refer to?

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */

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


Thread

Re: TIL: C++17 sequences assignment the wrong way. Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-07-30 07:22 -0700
  Re: TIL: C++17 sequences assignment the wrong way. Keith Thompson <kst-u@mib.org> - 2019-07-30 13:08 -0700
    Re: TIL: C++17 sequences assignment the wrong way. Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-09 10:36 -0700

csiph-web