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Groups > comp.lang.c > #164568
| From | Andrey Tarasevich <andreytarasevich@hotmail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Sequencing guarantees for macro versions of standard functions |
| Date | 2022-01-23 19:56 -0800 |
| Organization | A noiseless patient Spider |
| Message-ID | <ssl80r$h8r$1@dont-email.me> (permalink) |
| References | <ssct1k$651$1@dont-email.me> <86k0euq62t.fsf@linuxsc.com> <87lez6xeld.fsf@nosuchdomain.example.com> <868rv5oldy.fsf@linuxsc.com> |
On 1/23/2022 7:36 PM, Tim Rentsch wrote:
>
> However, the suggested rewrite has different semantics than the
> previous single assignment with function call. If we want to
> keep the same semantics but still be able to use the macro
> form (but without any sequencing issues), a different writing
> is needed, as for example
>
> x = modf( x, (double[]){ 0 } );
>
> Writing the call this way should make it obvious that the value
> stored in/through the second argument is ignored and discarded.
That would be
x = modf( x, &(double[]){ 0 } );
--
Best regards,
Andrey Tarasevich
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Sequencing guarantees for macro versions of standard functions Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-20 15:59 -0800
Re: Sequencing guarantees for macro versions of standard functions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-20 16:35 -0800
Re: Sequencing guarantees for macro versions of standard functions Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-01-23 14:38 -0800
Re: Sequencing guarantees for macro versions of standard functions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-23 19:36 -0800
Re: Sequencing guarantees for macro versions of standard functions Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-23 19:56 -0800
Re: Sequencing guarantees for macro versions of standard functions Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-23 19:58 -0800
Re: Sequencing guarantees for macro versions of standard functions Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-01-23 23:50 -0800
Re: Sequencing guarantees for macro versions of standard functions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-24 07:27 -0800
Re: Sequencing guarantees for macro versions of standard functions Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-01-23 23:49 -0800
Re: Sequencing guarantees for macro versions of standard functions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-24 07:31 -0800
Re: Sequencing guarantees for macro versions of standard functions Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-01-24 13:18 -0800
Re: Sequencing guarantees for macro versions of standard functions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-29 03:36 -0800
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