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Groups > comp.lang.c > #142430

Re: nullptr in C

From Ian Collins <ian-news@hotmail.com>
Newsgroups comp.lang.c
Subject Re: nullptr in C
Date 2019-03-26 08:33 +1300
Message-ID <gfsoorFar11U1@mid.individual.net> (permalink)
References (2 earlier) <4d7e3b50-08f1-460d-8c87-3b116a7bc906@googlegroups.com> <8e0e9586-6759-4570-9f5d-dfe3b9f7844b@googlegroups.com> <9473b4e4-c8f0-4659-8d94-efaeb6a7dd35@googlegroups.com> <87d6403f-cb75-4f85-acba-bb180d5cb95e@googlegroups.com> <b1421d91-842c-4843-ae92-3ddbbc4fd436@googlegroups.com>

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On 26/03/2019 08:23, James Kuyper wrote:
> On Monday, March 25, 2019 at 3:02:11 PM UTC-4, Thiago Adams wrote:
>> On Monday, March 25, 2019 at 3:37:16 PM UTC-3, James Kuyper wrote:
>>> On Sunday, March 24, 2019 at 7:52:10 AM UTC-4, Thiago Adams wrote:
>>>> On Friday, March 22, 2019 at 5:29:35 PM UTC-3, James Kuyper wrote:
>>>>> On Friday, March 22, 2019 at 3:14:48 PM UTC-4, Thiago Adams wrote:
>>> ...
>>>>>> This means that adding _Bool didn't added a new way to declare booleans,
>>>>>
>>>>> Actually, C has two ways to declare booleans, both of which were added to the language at the same time: _Bool and bool.
>>>>
>>>> Yes, I was discarding the direct use of _Bool in my mind.
>>>> Does anyone uses _Bool instead of bool ?
>>>
>>> Yes, I routinely use _Bool, if only to avoid having to
>>> #include <stdbool.h>. In my experience, the need to avoid a conflicting
>>> definition of "bool" comes up only rarely, but often enough to justify
>>> avoiding it's use. I almost never need to write code that will compile
>>> as both C and C++ code, with the same meaning.
>>
>> In this case, what do you use for 'true' and 'false' ?
>>
>> (Both macros are defined in stdbool.h)
> 
> if(condition)
> if(!condition)

As a function parameter?

> Assuming the condition variable is suitably named, that should be a very
> clear, obvious way of using it.

-- 
Ian.

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Thread

Re: nullptr in C Thiago Adams <thiago.adams@gmail.com> - 2019-03-22 12:14 -0700
  Re: nullptr in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-22 13:29 -0700
    Re: nullptr in C Thiago Adams <thiago.adams@gmail.com> - 2019-03-24 04:51 -0700
      Re: nullptr in C William Ahern <william@25thandClement.com> - 2019-03-25 06:50 -0700
      Re: nullptr in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 11:37 -0700
        Re: nullptr in C Thiago Adams <thiago.adams@gmail.com> - 2019-03-25 12:01 -0700
          Re: nullptr in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 12:23 -0700
            Re: nullptr in C Ian Collins <ian-news@hotmail.com> - 2019-03-26 08:33 +1300
              Re: nullptr in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 12:58 -0700
                Re: nullptr in C Ian Collins <ian-news@hotmail.com> - 2019-03-26 10:25 +1300
            Re: nullptr in C Keith Thompson <kst-u@mib.org> - 2019-03-25 13:15 -0700
              Re: nullptr in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 13:21 -0700

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