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Groups > comp.lang.c++ > #86922
| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: creating a new local variable after a goto |
| Date | 2022-10-13 12:23 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <87mta0j7bh.fsf@bsb.me.uk> (permalink) |
| References | <ti7u75$1n58g$1@dont-email.me> <87zge0jumy.fsf@bsb.me.uk> <ti7v7i$1n6fh$2@dont-email.me> |
Andrey Tarasevich <andreytarasevich@hotmail.com> writes: > On 10/12/2022 7:59 PM, Ben Bacarisse wrote: >> Lynn McGuire <lynnmcguire5@gmail.com> writes: >> >>> So, I created a new local variable after a goto: >>> >>> if (crashed) >>> goto L99999; >>> >>> std::string msg; >>> >>> Visual C++ 2015 then informed me that "initialization of 'msg' is >>> skipped by 'goto L99999'". >>> >>> Is this a real thing, no variable with a constructor can be created >>> after a goto ? >> You can't have a goto and a matching label that might skip over an >> initialisation. The same applies to non-constructed POD types too. > > It is not about "construction", it is about initialization. Hmm... I thought I said that. Sorry if was not clear. > So called vacuous initialization can be bypassed. I.e. it does NOT > apply to a "non-constructed POD" object declared without an > initializer. The second sentence was not intended to be read with the first. -- Ben.
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creating a new local variable after a goto Lynn McGuire <lynnmcguire5@gmail.com> - 2022-10-12 21:47 -0500
Re: creating a new local variable after a goto Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-10-13 03:59 +0100
Re: creating a new local variable after a goto Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-10-12 20:04 -0700
Re: creating a new local variable after a goto Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-10-13 12:23 +0100
Re: creating a new local variable after a goto Lynn McGuire <lynnmcguire5@gmail.com> - 2022-10-13 21:56 -0500
Re: creating a new local variable after a goto "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-13 20:11 -0700
Re: creating a new local variable after a goto Lynn McGuire <lynnmcguire5@gmail.com> - 2022-10-13 22:45 -0500
Re: creating a new local variable after a goto "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-13 20:54 -0700
Re: creating a new local variable after a goto "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-13 20:55 -0700
Re: creating a new local variable after a goto Gawr Gura <gawrgura@mail.hololive.com> - 2022-10-14 04:41 +0000
Re: creating a new local variable after a goto Ralf Fassel <ralfixx@gmx.de> - 2022-10-14 11:53 +0200
Re: creating a new local variable after a goto scott@slp53.sl.home (Scott Lurndal) - 2022-10-14 13:48 +0000
Re: creating a new local variable after a goto Richard Damon <Richard@Damon-Family.org> - 2022-10-14 13:38 -0400
Re: creating a new local variable after a goto scott@slp53.sl.home (Scott Lurndal) - 2022-10-14 17:53 +0000
Re: creating a new local variable after a goto Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-11-15 16:26 -0800
Re: creating a new local variable after a goto Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-11-15 17:05 -0800
Re: creating a new local variable after a goto Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-10-14 01:07 -0700
Re: creating a new local variable after a goto "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-10-14 14:32 -0700
Re: creating a new local variable after a goto Manfred <noname@add.invalid> - 2022-10-15 01:56 +0200
Re: creating a new local variable after a goto Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-10-12 19:59 -0700
Re: creating a new local variable after a goto Lynn McGuire <lynnmcguire5@gmail.com> - 2022-10-13 21:55 -0500
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