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Re: Limiting function input only to __int64 but not int...

From Ian Collins <ian-news@hotmail.com>
Newsgroups comp.lang.c++
Subject Re: Limiting function input only to __int64 but not int...
Date 2011-10-24 20:58 +1300
Message-ID <9gkk4fFk5cU8@mid.individual.net> (permalink)
References <j824fk$5bf$1@gregory.bnet.hr> <4ea5113f$0$6629$9b4e6d93@newsspool2.arcor-online.net> <9gkjs9Fk5cU7@mid.individual.net>

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On 10/24/11 08:53 PM, Ian Collins wrote:
> On 10/24/11 08:18 PM, Marcel Müller wrote:
>> On 24.10.2011 00:28, A wrote:
>>> Is there a way (except overloading) to limit function input to accept
>>> __int64 but to get a compiler (preferable) or runtime (less preferable)
>>> error if it is called with int?
>>
>>> for example:
>>>
>>> void myfunction(__int64 param)    // Accepts only __int64 as input and no
>>> smaller
>> void myfunction(const __int64&   param);
>
> Won't the normal promotion rules still apply?
>
>     myfunction( 2 );
>
> Compiles happily as does
>
>     int n = 0;
>     myfunction( n );

Hit send too soon, I was going to add that

void myfunction( int64_t& param );

was probably what you intended to type.

-- 
Ian Collins

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Thread

Limiting function input only to __int64 but not int... "A" <a@a.a> - 2011-10-24 00:28 +0200
  Re: Limiting function input only to __int64 but not int... Ian Collins <ian-news@hotmail.com> - 2011-10-24 11:49 +1300
    Re: Limiting function input only to __int64 but not int... Juha Nieminen <nospam@thanks.invalid> - 2011-10-24 08:08 +0000
      Re: Limiting function input only to __int64 but not int... yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-10-24 14:24 +0000
  Re: Limiting function input only to __int64 but not int... Marc <marc.glisse@gmail.com> - 2011-10-23 22:52 +0000
    Re: Limiting function input only to __int64 but not int... "A" <a@a.a> - 2011-10-24 01:32 +0200
  Re: Limiting function input only to __int64 but not int... Goran <goran.pusic@gmail.com> - 2011-10-23 23:29 -0700
    Re: Limiting function input only to __int64 but not int... "A" <a@a.a> - 2011-10-24 17:11 +0200
      Re: Limiting function input only to __int64 but not int... Robert Wessel <robertwessel2@yahoo.com> - 2011-10-24 12:17 -0500
        Re: Limiting function input only to __int64 but not int... Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-24 13:49 -0400
        Re: Limiting function input only to __int64 but not int... "A" <a@a.a> - 2011-10-25 00:12 +0200
          Re: Limiting function input only to __int64 but not int... Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-24 20:20 -0400
          Re: Limiting function input only to __int64 but not int... Christian Gollwitzer <auriocus@gmx.de> - 2011-10-25 07:27 +0200
            Re: Limiting function input only to __int64 but not int... Arne Mertz <arnemertz@googlemail.com> - 2011-10-26 01:02 -0700
  Re: Limiting function input only to __int64 but not int... Marcel Müller <news.5.maazl@spamgourmet.com> - 2011-10-24 09:18 +0200
    Re: Limiting function input only to __int64 but not int... Ian Collins <ian-news@hotmail.com> - 2011-10-24 20:53 +1300
      Re: Limiting function input only to __int64 but not int... Ian Collins <ian-news@hotmail.com> - 2011-10-24 20:58 +1300

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