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| From | Ian Collins <ian-news@hotmail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: CAlive to introduce flowofs |
| Date | 2015-11-03 11:20 +1300 |
| Message-ID | <d9q5tpF7v31U7@mid.individual.net> (permalink) |
| References | (1 earlier) <n18j7u$g97$1@dont-email.me> <d9q1v9F7v31U3@mid.individual.net> <n18jjk$heh$1@dont-email.me> <d9q30lF7v31U5@mid.individual.net> <n18ljs$qqt$1@dont-email.me> |
Bartc wrote:
> On 02/11/2015 21:31, Ian Collins wrote:
>> Bartc wrote:
>>> On 02/11/2015 21:13, Ian Collins wrote:
>>>> Bartc wrote:
>
>>>>> This is one of your ideas that I like, and have implemented my own
>>>>> version.
>>>>
>>>> It is also one which (as discussed last year) already available in
>>>> C++ :)
>>>
>>> I don't remember the C++ version. What's the feature called there?
>>
>> A function object (functor).
>
> OK. My initial reading suggests that the concept is rather more
> elaborate and general purpose than what is being discussed here, which
> is a way of getting from X in a function to Y in the same function, then
> returning to just after X. I believe that what I've implemented is very
> easy to understand.
>
> (I've looked at the link to last year's thread, I couldn't see any
> examples of functors there. What would my version of Rick's example look
> like using functors? (The fact that I have to ask doesn't bode well!). A
> link to one of last year's posts will do.)
One form would be:
struct my_function
{
int result;
int count;
int value;
void five_count()
{
result = 5*value;
}
void ten_count()
{
result = 10*value;
}
void greater_than_ten_count()
{
result = 42*value;
}
int operator()( int c, int v )
{
count = c;
value = v;
if (count < 5) five_count();
else if (count < 10) ten_count();
else greater_than_ten_count();
return result;
}
};
--
Ian Collins
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CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 11:20 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 11:27 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 11:34 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 11:57 -0800
Re: CAlive to introduce flowofs supercat@casperkitty.com - 2015-11-02 12:18 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 12:24 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 12:48 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 12:40 -0800
Re: CAlive to introduce flowofs Bartc <bc@freeuk.com> - 2015-11-02 21:08 +0000
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-03 10:13 +1300
Re: CAlive to introduce flowofs Bartc <bc@freeuk.com> - 2015-11-02 21:14 +0000
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-03 10:31 +1300
Re: CAlive to introduce flowofs Bartc <bc@freeuk.com> - 2015-11-02 21:48 +0000
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-03 11:20 +1300
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 14:33 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 15:03 -0800
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-03 12:05 +1300
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 15:08 -0800
Re: CAlive to introduce flowofs supercat@casperkitty.com - 2015-11-02 16:44 -0800
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 17:20 -0800
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-03 17:06 +1300
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 20:13 -0800
Re: CAlive to introduce flowofs Bartc <bc@freeuk.com> - 2015-11-03 12:43 +0000
Re: CAlive to introduce flowofs David Brown <david.brown@hesbynett.no> - 2015-11-03 14:20 +0100
Re: CAlive to introduce flowofs Ian Collins <ian-news@hotmail.com> - 2015-11-04 08:57 +1300
Re: CAlive to introduce flowofs "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-02 14:31 -0800
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