Hide sections of code?

Question

This question isn't directly related to coding, but more to do with the efficiency and organisation of the c++ code. I have loads of declarations of arrays with preset data so they take up quite a lot of space.

I don't know whether this is a visual studio 2012 only feature but with functions I am able to minimise it so all I see is the name "void randomfunction()", this means I really speed up coding by collapsing all functions that I know are done and dusted for the time being.

What I would like to know if this is possible with any other parts of the code, like when you want to add a comment you // before typing. Is it possible to define two boundaries around a chunk of code so that I can collapse it.

Ok thanks guys for help im using the #pragma region #pragma endregion commands, how would i name the region so that if i create multiple i can know which is which whithout opening?

Put them in a separate file? It also avoids recompiling those arrays when the rest of the code changes. — R. Martinho Fernandes, Aug 09 '13 at 17:15
See http://stackoverflow.com/questions/1626036/how-do-i-collapse-selected-chunks-of-code-in-visual-studio-2008 — A.E. Drew, Aug 09 '13 at 17:20
I updated the tag to visual-studio rather than C++ since this isn't a C++ question. — Mark B, Aug 09 '13 at 17:20
http://stackoverflow.com/questions/9000479/equivalent-of-region-for-c - you can use #pragma Region (assuming you're using VS). — neminem, Aug 09 '13 at 17:20
@MarkB well it is a c++ question if this feature is not available in other visual studio languages or it is available in other c++ IDEs — Callum Hutchinson, Aug 09 '13 at 17:22
@MarkB It is a c++ question in addition to being a VS question: different languages have different preprocessor commands. I'm used to using #region/#endregion for this, but that only works in C#. — neminem, Aug 09 '13 at 17:22

Bartek Banachewicz · Accepted Answer · 2013-08-09T18:45:54.463

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You can write

#pragma region "My region name"

And it will work.

However, if you find yourself in a need to hide code, that means your functions are too long. You should divide your code logically without resorting to hacks like these.

edited Aug 09 '13 at 18:45

answered Aug 09 '13 at 18:39

Bartek Banachewicz

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He specifically said what he wanted to be able to collapse: a long constant list. How exactly would you "divide your code logically" in a long list of constants? I can't think of anything. :p (Well, I suppose putting them in a separate file, but sometimes you don't want to.) – neminem Aug 12 '13 at 14:41
@neminem In that case putting it in a separate header would be a reasonable solution. Also when answering on SO you're answering to the whole community, not only the OP. I don't want newbies abusing `#pragma region` (I did that myself `:(`) – Bartek Banachewicz Aug 12 '13 at 14:55
It seems you must use `#pragma endregion "My region name"` to be able to collapse the code chunk. – joepol Nov 19 '20 at 07:19

score 1 · Answer 2 · edited May 23 '17 at 12:33

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This is called code folding. In visual studi there are hotkeys that are described here Visual Studio - Command to collapse all sections of code? For C++, any scope block {} can be folded separately...

edited May 23 '17 at 12:33

Community

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answered Aug 09 '13 at 17:20

Ilya Kobelevskiy

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To piggyback on this answer, VS stores which scope blocks are folded in your .user profile file, and will keep them folded the next time you open the file. – moswald Aug 09 '13 at 19:12

Hide sections of code?

2 Answers2