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Groups > comp.lang.c++ > #77198
| From | Paavo Helde <myfirstname@osa.pri.ee> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: exception with distinct data members and concatenated what |
| Date | 2020-12-08 22:13 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <rqomoo$7bu$1@dont-email.me> (permalink) |
| References | (13 earlier) <r3hai2$78g$1@dont-email.me> <r3jtd3$1q8s$1@gioia.aioe.org> <r3jtim$1q8s$2@gioia.aioe.org> <r3kvvd$n1j$1@dont-email.me> <f591e2c7-c2fe-4562-bc0d-91ac85f215ddn@googlegroups.com> |
08.12.2020 18:24 daniel...@gmail.com kirjutas:
> How do we implement a robust exception class that has accessors to several string data members, and a what function that returns a concatenation of those strings?
I understand you worry about memory exhaustion while constructing an
error message. This question is mostly theoretical. If the machine is so
out of memory that it cannot construct a single error message even after
stack unwinding, then you have got much more serious troubles than
trying to preserve your error message text. Most likely your error
handler would not be able to process the long error message properly anyway.
So it does not really matter what you return. Considering the memory is
fully exhausted, it makes some sense to return a very short string,
increasing the chances the error handler is able to cope with it. E.g.:
try {
// ...
} catch(...) {
return "No memory";
}
With some kind of software, it might be even preferable to kill the
program on spot if memory appears to be fully exhausted. But this is
probably better done in the out-of-memory handler.
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Re: Regal eagle / American cloud David Brown <david.brown@hesbynett.no> - 2020-03-03 08:11 +0100
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exception with distinct data members and concatenated what "daniel...@gmail.com" <danielaparker@gmail.com> - 2020-12-08 08:24 -0800
Re: exception with distinct data members and concatenated what Öö Tiib <ootiib@hot.ee> - 2020-12-08 10:26 -0800
Re: exception with distinct data members and concatenated what "daniel...@gmail.com" <danielaparker@gmail.com> - 2020-12-08 11:00 -0800
Re: exception with distinct data members and concatenated what Öö Tiib <ootiib@hot.ee> - 2020-12-08 13:17 -0800
Re: exception with distinct data members and concatenated what Paavo Helde <myfirstname@osa.pri.ee> - 2020-12-08 22:13 +0200
Re: Regal eagle / American cloud "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2020-02-28 23:38 -0800
Re: Regal eagle / American cloud Melzzzzz <Melzzzzz@zzzzz.com> - 2020-02-29 06:50 +0000
Re: Regal eagle / American cloud "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2020-02-28 23:32 -0800
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