Re: Extending std::iota function

From:
red floyd <no.spam.here@its.invalid>
Newsgroups:
comp.lang.c++.moderated
Date:
Tue, 5 Jul 2011 17:05:16 CST
Message-ID:
<iuvuqp$frl$1@dont-email.me>
On 7/5/2011 12:51 PM, red floyd wrote:

On Jul 4, 6:33 pm, Ricky65<ricky...@hotmail.com> wrote:

In C++0x the iota function has been added which I find very useful for
testing. However, I find the ability to only increment by 1 to be very
limiting. Sometimes we don't want to fill a container or array with
consecutive integers, we want to control the increment. Consequently,
I feel it would be useful to provide an overload for iota with this
functionality. For example:

//version of iota where user can specify the increment
template<typename Iter, typename Initial_Value, typename Step>
void iota(Iter _First, Iter _Last, Initial_Value value, Step step)
{
         for (; _First != _Last; ++_First, value += step)
                 *_First = value;

}


1. Identifiers with a leading underscore followed by an uppercase
      are reserved to the implementation.


I'm an idiot. The += wasn't on an iterator, it was on a value type.

Ignore the code I submitted. Mods, if it's possible to cancel the post,
could you please do so?

{ It's not possible, as far as I know. -mod/sk }

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