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| From | BartC <bc@freeuk.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: [Structure of Array] pointer arithmetic in structures |
| Date | 2016-12-18 19:38 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <o36oh3$qtk$1@dont-email.me> (permalink) |
| References | (1 earlier) <324efd89-9cbf-411f-bf64-64c6446dc36f@googlegroups.com> <m8kd5c592moamvdon2ncc4f4428e5trpk9@4ax.com> <8e80556a-cfc7-495b-b487-0a085a06bf15@googlegroups.com> <o36ltr$h3p$1@dont-email.me> <fd2917ab-e3a3-4f14-8651-a59e7a358639@googlegroups.com> |
On 18/12/2016 19:22, Dexterr wrote:
> On Sunday, December 18, 2016 at 7:54:16 PM UTC+1, Bart wrote:
>> On 18/12/2016 18:40, Dexterr wrote:
>>
>>> I just want to copy some variables from one struct to another and to change from char to integer.
>>
>> The sort of conversion you want to do (from string "1234" to integer
>> 1234) can't be done with a cast.
>>
>> You have to use something atol() or perhaps strtol() - to convert to
>> integer (and strtod to double). But they won't convert an expression
>> such as "`48/100" to 0.48. Or "(1/100)" to 0.01.
>
> No, no, I don't expect that "48/100" be converted to 0.48. No at all. That is imposible.
>
> I has planed to have 3 new variables:
>
> - first var = 48
> - second var = 100
> - > the third var = 48/100 - to get some float number to use it to make calculations I need
If the input will always be in the form A/B or (A/B), where A and B are
integers, then that makes things easier. Read as two integers
(discarding "(", "/" and ")"), and store as two integers. Optionally
divide them (as (double)A/B otherwise you'll get 0) to calculate with.
--
Bartc
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[Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 07:51 -0800
Re: [Structure of Array] pointer arithmetic in structures fir <profesor.fir@gmail.com> - 2016-12-18 08:15 -0800
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 09:31 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-18 16:27 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 09:43 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-18 18:13 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 10:31 -0800
Re: [Structure of Array] pointer arithmetic in structures Barry Schwarz <schwarzb@dqel.com> - 2016-12-18 10:39 -0800
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 10:02 -0800
Re: [Structure of Array] pointer arithmetic in structures Barry Schwarz <schwarzb@dqel.com> - 2016-12-18 10:20 -0800
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 10:40 -0800
Re: [Structure of Array] pointer arithmetic in structures Barry Schwarz <schwarzb@dqel.com> - 2016-12-18 10:54 -0800
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 11:10 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-18 18:54 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 11:05 -0800
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 11:22 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-18 19:38 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 11:45 -0800
Re: [Structure of Array] pointer arithmetic in structures Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-18 20:07 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 12:35 -0800
Re: [Structure of Array] pointer arithmetic in structures Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-18 21:26 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-18 13:47 -0800
Re: [Structure of Array] pointer arithmetic in structures Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-19 00:23 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-19 10:53 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-19 19:11 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-19 11:20 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-19 19:31 +0000
Re: [Structure of Array] pointer arithmetic in structures Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-19 20:06 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-19 11:27 -0800
Re: [Structure of Array] pointer arithmetic in structures BartC <bc@freeuk.com> - 2016-12-19 19:40 +0000
Re: [Structure of Array] pointer arithmetic in structures Dexterr <dejangru@gmail.com> - 2016-12-19 12:09 -0800
Re: [Structure of Array] pointer arithmetic in structures Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-19 20:15 +0000
Re: [Structure of Array] pointer arithmetic in structures "Peter \"Shaggy\" Haywood" <phaywood@alphalink.com.au> - 2016-12-24 17:12 +1100
Re: [Structure of Array] pointer arithmetic in structures Barry Schwarz <schwarzb@dqel.com> - 2016-12-19 16:15 -0800
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