This stack-overflow quarion and answer looks relevant. It seems as if boost could benefit from a flattening_iterator type: https://stackoverflow.com/questions/3623082/flattening-iterator On Mon, 6 Apr 2020 at 08:41, Lars Sunde via Boost-users < boost-users@lists.boost.org> wrote:
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
*Sendt:* søndag 5. april 2020 23:08 *Til:* Boost users list *Kopi:* Lars Sunde *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 .
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