Re: proposal : keyword default

Message-ID	<l3jdt7$61d$1@dont-email.me> (permalink)
Newsgroups	comp.std.c++
From	Edward Diener <eldiener@tropicsoft.invalid>
Subject	Re: proposal : keyword default
Organization	A noiseless patient Spider
References	(4 earlier) <u-ydncvlzM5_7szPnZ2dnUVZ7qydnZ2d@bt.com> <l2ucul$tg3$1@dont-email.me> <3fa2e85e-550f-4efc-ba6a-e522852dc322@googlegroups.com> <l3bqlm$ro7$1@dont-email.me> <pnok59th0kk873tn3fnmau7afvv1blmfm6@4ax.com>
Date	2013-10-16 10:34 -0600

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On 10/13/2013 1:33 PM, John Harris wrote:
>
> On Sat, 12 Oct 2013 11:36:54 CST, Edward Diener
> <eldiener@tropicsoft.invalid> wrote:
>
>     <snip>
>> What does using default arguments in functions and templates have to do
>> with long argument lists ?
>     <snip>
>
> Because writing
>
>     do_it(a,,,,,,,,,b);    // Right no. of commas ?
>
> is just as bad for users as
>
>     do_it(src=a, dest=b);  // Have I forgotten a critical parameter ?

I do not think writing

do_it(a,the_default_2,the_default_3,the_default_4,the_default_5,the_default_6,the_default_7,the_default_8,b);

is any better.

I do not believe in abusing default arguments with long argument lists
and I do not understand why you think that creating a means by which
specifying a default argument becomes much easier is going to lead to
others creating long argument lists.


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Re: proposal : keyword default alexander.stoyan@googlemail.com - 2013-10-03 13:25 -0600
  Re: proposal : keyword default Daniel Krügler <daniel.kruegler@googlemail.com> - 2013-10-04 11:19 -0700
  Re: proposal : keyword default "Paul D. DeRocco" <pderocco@ix.netcom.com> - 2013-10-04 11:58 -0700
    Re: proposal : keyword default Bo Persson <bop@gmb.dk> - 2013-10-05 19:19 -0700
      Re: proposal : keyword default Edward Diener <eldiener@tropicsoft.invalid> - 2013-10-07 01:50 -0600
    Re: proposal : keyword default Edward Diener <eldiener@tropicsoft.invalid> - 2013-10-05 19:19 -0700
      Re: proposal : keyword default Francis Glassborow <francis.glassborow@btinternet.com> - 2013-10-07 01:50 -0600
        Re: proposal : keyword default Edward Diener <eldiener@tropicsoft.invalid> - 2013-10-07 15:05 -0600
          Re: proposal : keyword default James Kuyper <jameskuyper@verizon.net> - 2013-10-08 12:36 -0700
          Re: proposal : keyword default Helmut Zeisel <zei2011@liwest.at> - 2013-10-12 03:47 -0600
            Re: proposal : keyword default Edward Diener <eldiener@tropicsoft.invalid> - 2013-10-12 11:36 -0600
              Re: proposal : keyword default ootiib@hot.ee - 2013-10-12 23:10 -0600
              Re: proposal : keyword default John Harris <niam@jghnorth.org.uk.invalid> - 2013-10-13 11:33 -0600
                Re: proposal : keyword default Edward Diener <eldiener@tropicsoft.invalid> - 2013-10-16 10:34 -0600
              Re: proposal : keyword default Helmut Zeisel <zei2011@liwest.at> - 2013-10-14 20:37 -0700
  Re: proposal : keyword default Alexander Terekhov <terekhov@web.de> - 2013-10-18 01:20 -0600

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