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| [33 earlier articles] |
| Re: Optimization techniques and undefined behavior david.brown@hesbynett.no (David Brown) (2019-05-07) |
| Re: Optimization techniques and undefined behavior david.brown@hesbynett.no (David Brown) (2019-05-07) |
| Re: Optimization techniques and undefined behavior david.brown@hesbynett.no (David Brown) (2019-05-07) |
| Re: Optimization techniques and undefined behavior david.brown@hesbynett.no (David Brown) (2019-05-07) |
| Re: Optimization techniques and undefined behavior martin@gkc.org.uk (Martin Ward) (2019-05-08) |
| Re: Optimization techniques and undefined behavior gneuner2@comcast.net (George Neuner) (2019-05-08) |
| Re: Optimization techniques and undefined behavior genew@telus.net (Gene Wirchenko) (2019-05-11) |
| From: | Gene Wirchenko <genew@telus.net> |
| Newsgroups: | comp.compilers |
| Date: | Sat, 11 May 2019 22:25:04 -0700 |
| Organization: | A noiseless patient Spider |
| References: | 19-04-021 19-04-023 19-04-037 19-04-039 19-04-042 19-04-044 19-04-047 19-05-004 19-05-006 19-05-016 19-05-017 |
| Injection-Info: | gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="22625"; mail-complaints-to="abuse@iecc.com" |
| Keywords: | design, comment |
| Posted-Date: | 12 May 2019 12:38:28 EDT |
On Fri, 3 May 2019 10:52:27 +0100, Martin Ward <martin@gkc.org.uk>
wrote:
>On 03/05/19 00:48, Bart wrote:
>> And I think that if a program can
>> go seriously wrong through unchecked input, then that's a failure in
>> proper validation. It's rather sloppy to rely on a runtime check put
>> their by a compiler.
>
>The car analogy for C is that C is a car with no seatbelts, crumple
>zones, roll bars, airbags etc. The car manual explicitly states that
>nudging the kerb with any tyre is "undefined behaviour" and could
>cause the car to explode in a fireball, killing all the passengers.
Not quite. The manual would end with "undefined behaviour".
Someone bringing up the possibility of a fireball explosion or nasal
demons or whatever would be told that that is merely a quality of
implementation issue.
[snip]
Sincerely,
Gene Wirchenko
[We're getting a bit far from compilers here. -John]
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