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

Path	csiph.com!news.swapon.de!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail
From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c++
Subject	Re: TIL: C++17 sequences assignment the wrong way.
Date	Fri, 09 Aug 2019 10:36:50 -0700
Organization	A noiseless patient Spider
Lines	32
Message-ID	<867e7m9r65.fsf@mailhub.linuxsc.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> <ln7e7z4758.fsf@kst-u.example.com>
Mime-Version	1.0
Content-Type	text/plain; charset=us-ascii
Injection-Info	reader02.eternal-september.org; posting-host="ddd52e898386accec42eaf10bcb5b758"; logging-data="20408"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+x7VuVsB2nh66L46lRx5iQzJIfs6mE1fI="
User-Agent	Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux)
Cancel-Lock	sha1:V2Cz5NxSi0VasFmJgB5BU1siyHQ= sha1:RT1rYS0NFfbl3FDBar+0sAzXofM=
Xref	csiph.com comp.lang.c++:67499

Show key headers only | View raw

Keith Thompson <kst-u@mib.org> writes:

> 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?

The sentence that starts "Therefore some kind of ...".

Back to comp.lang.c++ | Previous | Next — Previous 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