Re: Q: how to make an object that throws

From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c++
Subject	Re: Q: how to make an object that throws
Date	2024-04-25 14:08 -0700
Organization	A noiseless patient Spider
Message-ID	<86bk5xw3o5.fsf@linuxsc.com> (permalink)
References	<n6Ocnf_tkL8shbr7nZ2dnZfqn_qdnZ2d@giganews.com> <87wmoon5d3.fsf@fuzy.me> <object-20240424202505@ram.dialup.fu-berlin.de>

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ram@zedat.fu-berlin.de (Stefan Ram) writes:

> Zhengyi Fu <i@fuzy.me> wrote or quoted:
>
>> int *object = NULL;
>
>   This seems to be what's helping the OP, but when you consider
>   that the subject line is "how to make an object that throws",
>   you'd actually have to say that the thrower here is not an
>   object, but rather the /absence of an object/.
>
>   This of course has to do with how objects are specified.
>
>   In C++, an expression can stand directly for an object, so
>   an assignment copies that object.  In other languages,

In some other languages.  Certainly not all other languages.

>   objects
>   are always implicitly specified by references/pointers, and
>   an assignment copies that reference/pointer.

Some languages that use pointer semantics rather than using
"objects" directly don't have a way to do assignment, so the
question of what is copied is moot.

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Thread

Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-22 19:11 -0700
  Re: Q: how to make an object that throws Sam <sam@email-scan.com> - 2024-04-22 22:32 -0400
    Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-22 21:51 -0700
      Re: Q: how to make an object that throws Sam <sam@email-scan.com> - 2024-04-23 07:26 -0400
        Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-23 08:39 -0700
          Re: Q: how to make an object that throws Sam <sam@email-scan.com> - 2024-04-23 22:08 -0400
            Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-23 20:07 -0700
              Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-23 22:10 -0700
  Re: Q: how to make an object that throws Zhengyi Fu <i@fuzy.me> - 2024-04-23 11:08 +0800
    Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-22 21:52 -0700
    Re: Q: how to make an object that throws wij <wyniijj5@gmail.com> - 2024-04-25 02:56 +0800
      Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-24 12:02 -0700
    Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-24 13:56 -0700
      Re: Q: how to make an object that throws Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-27 08:09 -0700
    Re: Q: how to make an object that throws Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-04-25 14:08 -0700

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