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Re: best way to pass a multiple dimension variable to a method

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Lynn McGuire <lynnmcguire5@gmail.com> writes:

> On 12/21/2022 2:37 PM, Lynn McGuire wrote:
>> What is the best way to pass a multiple dimension variable to a method in C++ ?
>> For instance, in C you could do the following:
>>      double xyz [5] [2] [14];
>>      ...
>>      amethod (xyz, ...);

Best is always going to depend on lost of as yet unspecified factors.
Are the sizes (other than the "top-level" one) always know at compile
time?  Are they always the same?

> I am looking at
>    https://www.educba.com/3d-arrays-in-c-plus-plus/

That hardly scratches the surface!

> and
>
> https://stackoverflow.com/questions/8767166/passing-a-2d-array-to-a-c-function

C has variably modified types which means you can pass run-time array
sizes to a C function.  C++ does not have this feature, but then that
page includes some C++ and does not use variably modified types (as far
as I could see).

You probably need to say more about your constraints to get better advice.

-- 
Ben.

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Thread

best way to pass a multiple dimension variable to a method Lynn McGuire <lynnmcguire5@gmail.com> - 2022-12-21 14:37 -0600
  Re: best way to pass a multiple dimension variable to a method Richard Damon <Richard@Damon-Family.org> - 2022-12-21 17:10 -0500
  Re: best way to pass a multiple dimension variable to a method Lynn McGuire <lynnmcguire5@gmail.com> - 2022-12-21 16:18 -0600
    Re: best way to pass a multiple dimension variable to a method Öö Tiib <ootiib@hot.ee> - 2022-12-21 18:03 -0800
      Re: best way to pass a multiple dimension variable to a method David Brown <david.brown@hesbynett.no> - 2022-12-22 15:03 +0100
    Re: best way to pass a multiple dimension variable to a method Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-12-22 03:02 +0000
      Re: best way to pass a multiple dimension variable to a method Lynn McGuire <lynnmcguire5@gmail.com> - 2022-12-22 02:01 -0600
        Re: best way to pass a multiple dimension variable to a method Öö Tiib <ootiib@hot.ee> - 2022-12-22 00:25 -0800
        Re: best way to pass a multiple dimension variable to a method Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-12-22 12:13 +0000
  Re: best way to pass a multiple dimension variable to a method Paavo Helde <eesnimi@osa.pri.ee> - 2022-12-22 09:07 +0200
  Re: best way to pass a multiple dimension variable to a method Lynn McGuire <lynnmcguire5@gmail.com> - 2022-12-22 22:10 -0600
  Re: best way to pass a multiple dimension variable to a method Lynn McGuire <lynnmcguire5@gmail.com> - 2022-12-22 22:23 -0600

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