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Groups > comp.lang.c > #147639
| Subject | Re: Is this kosher wrt Generic? |
|---|---|
| Newsgroups | comp.lang.c |
| References | (5 earlier) <qprq74$rl6$1@news.albasani.net> <dbc11ea8-b3c1-4862-9e27-9d75708f7643@googlegroups.com> <h2e87qFq967U1@mid.individual.net> <NwmwF.35074$L91.4737@fx02.am4> <h2ebmtFq967U2@mid.individual.net> |
| From | Bart <bc@freeuk.com> |
| Message-ID | <2mnwF.75580$ZO5.32897@fx26.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2019-11-05 23:12 +0000 |
On 05/11/2019 22:34, Ian Collins wrote:
> On 06/11/2019 11:16, Bart wrote:
>>
>> A lot of the complexity in C++ appears to me gratuitous.
>
> You say that about a lot of things.
Maybe it is true about a lot of things! (Eg. auto-conf scripts.)
>> Even when it isn't, a considerable amount is exposed to the compiler
>> (ie. each time it runs, it has to process library source code to
>> implement features which in another language are compiled once)
>
> So?
So it makes the process cumbersome.
> Some, much is built in. Compilers aren't psychic, if you use a library
> function incorrectly, the compiler will tell you that you have used it
> incorrectly.
But for features which you may not even know is a library function? I
don't actually know which bit of C++ is implemented in a library, and
which part is a built-in core feature.
>> Advocates for the language like to pretend that it is for experts.
>
> I don't, often I'd claim the opposite. Creating and using a dynamically
> expandable robust array or string in C is much more of an "expert"
> problem than it is in C++.
This is a fragment I came across today:
for (auto i=0; ....)
I assumed i takes its type from the zero, and wondered what would happen
here:
#include <iostream>
int main() {
for (auto i=0; i<=5000000000; i+=100000000) {
std::cout << i << std::endl;
}
}
And I was right: i has type i32, and it will wrap or generate UB. Not
what you intended anyway. That 'auto' gives a false sense of security. A
compiler may report something given enough options, but apparently not
if the limit is a i64 variable.
BTW what happened to "_" separators for those long constants which I
thought C++ had? Neither my g++ nor rextester seems to like them.
I mentioned something about getting basic features right in an earlier
post, a lot of languages don't, yet do have esoteric ones.
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Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-04 22:55 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 08:12 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 03:52 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 13:12 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 04:24 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 13:33 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 04:57 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 14:08 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 05:21 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 14:27 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 05:42 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 14:51 +0100
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-05 14:49 +0000
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 15:53 +0100
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-05 15:59 +0000
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 17:11 +0100
Re: Is this kosher wrt Generic? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-05 09:19 -0800
Re: Is this kosher wrt Generic? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-05 07:00 -0800
Re: Is this kosher wrt Generic? David Brown <david.brown@hesbynett.no> - 2019-11-05 16:30 +0100
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 15:31 +0100
Re: Is this kosher wrt Generic? Ian Collins <ian-news@hotmail.com> - 2019-11-06 10:34 +1300
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-05 22:16 +0000
Re: Is this kosher wrt Generic? Ian Collins <ian-news@hotmail.com> - 2019-11-06 11:34 +1300
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-05 23:12 +0000
Re: Is this kosher wrt Generic? Ian Collins <ian-news@hotmail.com> - 2019-11-06 12:29 +1300
Re: Is this kosher wrt Generic? David Brown <david.brown@hesbynett.no> - 2019-11-06 10:17 +0100
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-06 10:56 +0100
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-06 10:02 +0100
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-06 10:43 +0000
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-06 04:56 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-06 14:05 +0100
Re: Is this kosher wrt Generic? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-08 21:03 -0800
Re: Is this kosher wrt Generic? Ian Collins <ian-news@hotmail.com> - 2019-11-10 08:45 +1300
Re: Is this kosher wrt Generic? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-28 16:35 -0800
Re: Is this kosher wrt Generic? David Brown <david.brown@hesbynett.no> - 2019-11-29 12:41 +0100
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-29 04:08 -0800
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-29 13:01 +0000
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-29 06:43 -0800
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-29 17:31 +0000
Re: Is this kosher wrt Generic? David Brown <david.brown@hesbynett.no> - 2019-11-29 14:31 +0100
Re: Is this kosher wrt Generic? Öö Tiib <ootiib@hot.ee> - 2019-11-30 13:16 -0800
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-12-02 03:31 -0800
Re: Is this kosher wrt Generic? Öö Tiib <ootiib@hot.ee> - 2019-12-02 23:30 -0800
Re: Is this kosher wrt Generic? Ian Collins <ian-news@hotmail.com> - 2019-12-01 12:10 +1300
Re: Is this kosher wrt Generic? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-11 09:35 -0800
Re: Is this kosher wrt Generic? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-11-05 22:49 +0000
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 05:12 -0800
Re: Is this kosher wrt Generic? Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-05 14:20 +0100
Re: Is this kosher wrt Generic? guinness.tony@gmail.com - 2019-11-05 16:19 -0800
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-06 00:06 -0800
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-05 03:19 -0800
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-05 22:38 -0800
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-06 04:50 -0800
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-06 05:32 -0800
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-06 05:56 -0800
Re: Is this kosher wrt Generic? Bart <bc@freeuk.com> - 2019-11-06 14:26 +0000
Re: Is this kosher wrt Generic? Thiago Adams <thiago.adams@gmail.com> - 2019-11-06 09:04 -0800
Re: Is this kosher wrt Generic? David Brown <david.brown@hesbynett.no> - 2019-11-06 22:45 +0100
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-29 14:35 -0800
Re: Is this kosher wrt Generic? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-29 23:23 +0000
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-29 19:08 -0800
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-29 19:12 -0800
Re: Is this kosher wrt Generic? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-30 10:44 +0000
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-09 23:21 -0800
Re: Is this kosher wrt Generic? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-09 23:22 -0800
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