Re: How to do this in most simple way? about list of arrays

From:

=?UTF-8?B?RXJpayBXaWtzdHLDtm0=?= <Erik-wikstrom@telia.com>

Newsgroups:

comp.lang.c++

Date:

Sat, 29 Mar 2008 15:07:53 GMT

Message-ID:

<dXsHj.5418$R_4.4409@newsb.telia.net>

On 2008-03-29 15:11, Atemporal wrote:

On Mar 29, 9:44 pm, joseph cook <joec...@gmail.com> wrote:

On Mar 29, 9:20 am, Atemporal <Atemporal.s...@gmail.com> wrote:

Just break down what you said...

I want to create a list,

OK... std::list<N> mylist;

each element is an array of 2 integers,

OK... std::list< boost::array<int,2> > myList (or whatever array
structure you like if you don't have the boost library)

and I want to sort the list according to the first integer of each
element,

std::sort(myList, accordingToTheFirstInteger);

bool accordingToTheFirstInteger(boost::array<int,2>& x,
boost::array<int,2>& y)
{
// Put how you want to sort them here. (Odd first, then even? OR
largest to smallest)
// Seehttp://msdn2.microsoft.com/en-us/library/ecdecxh1(VS.80).aspx

}

is there a simple way to do this? thanks a lot.- Hide quoted text -

- Show quoted text -

thanks for your reply.
i'm a beinnger and i do not have boost library.
Need I to create a struct or a class to be the element of the list?

If you know that there will always only be two elements then a struct
might be a good idea. Or you can use std::map as Jim Langston suggested
(or std::multimap if the first integer is not always unique).

--
Erik Wikstr??m