Appreciate the response but do not think this answers my question.

Maybe I did not explain myself properly. I would like the foo object to return a (boost) range object that the caller can traverse without knowing the details of the internal structure. The foo object might contain a configurable number of vector of int. 

So in one scenario foo will be initalized like this; 

vec = { {1,2,3}, {4,5,6}, {7,8,9} }; 

and in another scenario like this;

vec = { {1,2,3}, {4,5,6}, {7,8,9}, {10,11,12} }; 

I do not want to create another vector "master" that contains all int.

Appreciate any input 🙂

kind regards, Lars

---

Fra: degski <degski@gmail.com>
Sendt: søndag 5. april 2020 23:08
Til: Boost users list <boost-users@lists.boost.org>
Kopi: Lars Sunde <laasunde@hotmail.com>
Emne: Re: [Boost-users] boost range dynamic joined_range

 

On Sun, 5 Apr 2020 at 14:31, Lars Sunde via Boost-users <boost-users@lists.boost.org> wrote:

The following code compile on Visual Studio 2017 and will output the number 1 to 9.

This code will do so: https://stackoverflow.com/a/50660987 .

degski

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