I am using visual studio code with c++. When I format my code (Ctrl-k,Ctrl-f) it removes the spaces I place after/before open/close parentheses. I have the setting to add these spaces enabled and also see them in the settings.json file. I’m not using a prettier extension. I use only a c++ light theme extension, cmake and cmake tools extensions.
The formatting is working otherwise, perhaps, only because I am fine with the default formatting except the extra spaces. Trivial but it’s driving me crazy.
Does anyone have an idea how to make the formatted pay attention to the settings?
Thanks,
Eddie
The best way I know to solve this problem is to install the C/C++ extension by Microsoft (C/C++ IntelliSense).
After installing it, go to extension settings and choose between User and Workspace settings. What you need to adjust are these two lines:
C_Cpp: Clang_format_fallback Style and
C_Cpp: Clang_format_style
Based on your personal preferences, choose the CPP style out of those listed in extension settings (Google, LLVM, Chromium, Mozilla, etc.)
In addition, you might want to use extended settings as described here, e.g. "{BasedOnStyle: Google, ColumnLimit: 0}"
Moreover, there is another convenient way how you can adjust your formatting settings in VS Code's settings file:
Go to your VS Code and open your workspace / any file
If you are on Mac, press "cmd + Shift + P" and a console will appear
Remove the caret ">" and type "settings"; you'll see two files: 1) settings.json in the .vscode folder and 2) settings.json in your system user folder. The first one is responsible for your workspace settings and the second one – for your user-wide settings.
Each and every setting you change in your C/C++ extension is reflected in these files. Try to experiment with them. Changing the workspace file settings is useful when you work in a team and need to have the same formatting settings shared across all team members.
Take a look at these screenshots for reference:
Good luck!!
Related
I am new to VS Code and, coming from VS, I'm struggling to understand how to set up different configurations using the Microsoft C/C++ extension. I followed the documentation, but it seems to me that the content in c_cpp_properties.json is only affecting Intellisense and has no correlation to the actual build, which is set up in tasks.json. The configurations I enter are showing up and selectable at the lower right of the editor window: Intellisense reflects this by apparent knowledge about include folders, etc. However, when I build or run, they don't have any effect, I get errors such as "No such file or directory" for included files. As far as I see it, this is not mentioned in the documentation at all.
How can I make use of the actual selected configuration for the build system?
Can anyone tell me how to control default configuration parameters in VS 2017 C++? The scenario is that we generate one sample PC with the software we want (Win10, VS2017, et cetera), and this image is cloned onto about 100 PCs in student CS labs.
The two specific things I would like to control are (1) use of precompiled headers and (2) message C4706 (= versus == in an if condition). There are some others, but these are at top of the list.
I know students could fix this themselves, but so many are confused in the first few weeks of an introductory programming class that I don't want to try that.
A search of MSDN has not been productive, but I probably am using the wrong search terms.
Thank you in advance!
You could also edit the default platform property pages found at \\AppData\Local\Microsoft\MSBuild\v4.0, Microsoft.Cpp.Win32.user.props and Microsoft.Cpp.x64.user.props
I'm not sure how you would automatically distribute those files but so long as you are using MSBuild as the build system anything in those files is picked up prior to project-specific settings.
There are two ways I can think of:
Change the default settings in property pages for each configuration
Create a custom project template with all the project settings necessary. This will only affect new projects created with this template. Also it will keep the default template intact and will probably allow students to experiment a bit more.
For enabling Precompiled header.
Right click your project->Properties->( a property pages window appears)Configuration Properties-> C/C++ -> Precompiled Headers -> (on the right side) Select Use(/Yu) by clicking Precompiled Header.
And for suppressing C4706, set compiler warning to level less than 4
Right click your project->Properties->( a property pages window appears)Configuration Properties-> C/C++ -> General ->Warning Level to less than 4
To retain the settings and share with others....
I do not have proper VS2017.... Can you try as said below.....
First export the existing project settings using
project(visual studio menu)->Export template.... continue and and save the template and make a note of the path....
usually by default the templates is saved in below path as a zip file.
C:\Users\<>\Documents\Visual Studio 2017\My Exported Templates
Now copy the zip file and and put it in
C:\Users\<>\Documents\Visual Studio 2017\Templates\ProjectTemplates\Visual C++ Project
Check if your template is automatically picked up.
If not open visual studio command prompt tool and run
devenv /installvstemplates.
I've used Visual Lint (as a frontend for PC-lint) in the past and somehow configured it to use a different options.lnt file for different projects. My recollection, which might be incorrect, is that it was configured to automatically pick up anything called "options.lnt" in any project's directory - i.e. I didn't have to configure this for each project individually.
So for example I might have two projects, ProjX and ProjY, and I might have different options.lnt files in each of them:
C:\MyProjects\ProjX\options.lnt
C:\MyProjects\ProjY\options.lnt
Possibly those might refer to certain sets of general options stored in other files; for example I have C:\MyProjects\Lint\options.lnt for very general things, and then more specific options files for things related to certain packages; for example I have C:\MyProjects\Lint\options_boost.lnt for use by projects that use Boost. So if ProjX uses Boost, C:\MyProjects\ProjX\options.lnt will contain (at least) the lines:
C:\MyProjects\Lint\options.lnt
C:\MyProjects\Lint\options_boost.lnt
Whereas perhaps ProjY doesn't use Boost, and so its options.lnt would have the "general" line, but not the Boost-specific line.
This was all working fine, but I've migrated to a new computer, and I can't seem to get it working again. When I run Visual Lint against ProjX, it shows messages that should be suppressed by (for example) entries in C:\MyProjects\Lint\options_boost.lnt.
I have gone into Visual Lint's "Tools / Options", and under the "Analysis" tab, I have set "Preferred Analysis method" to "Per project". I have the Professional edition, which I believe is required for this functionality. I am using version 5 (whereas the previous machine, on which this was working, was version 4).
Am I perhaps missing some additional configuration I need to set up in order to get Visual Lint to pay attention to the project's options file?
Answering my own question:
In Visual Lint, go to Tools / Options / PC-lint. In there, there's a "Configuration" field, containing the name of a *.lnt file (like C:\Lint\std.lnt) that applies to anything you do in PC-lint via Visual Lint. Edit that file to contain the line:
options.lnt
Without specifying a full path. That seems to make it pick up the copy of options.lnt from the project's directory, and that file can then contain the more specific lines as shown in the question, such as:
C:\MyProjects\Lint\options.lnt
C:\MyProjects\Lint\options_boost.lnt
I am trying to import an existing c++ application's source into visual studio to take advantage of some specific MS tools. However, after searching online and playing with visual studio, I cannot seem to find an easy way to import existing c++ source code into visual studio and keep it structurally intact.
The import capacity I did find flattens out the directories and puts them all into one project. Am I missing something?
(This is all unmanaged C++, and contains specific builds for win/unix)
With no project/solution loaded, in Visual Studio 2005 I see this menu item:
File > New Project From Existing Code...
After following the wizard, my problem is solved!
Switching the "Show All Files" button shows the complete hierarchy with all directories and files within.
If the New Project From Existing Code... option isn't available, you'll need to add it in Tools > Customize...
I am not aware of any general solution under the constraints given - specifically having to create many projects from a source tree.
The best option I see is actually creating the project files by some script.
Creating a single project manually (create empty project, then add the files),
Configure it as close as possible as desired (i.e. with precompiled headers, build configurations, etc.)
Use the .vcproj created as skeleton for the project files to be created
A very simple method would file list, project name etc. with "strange tokens", and fill them in with your generator. If you want to be the good guy, you can of course use some XML handling library.
Our experience: We actually don't store the .vcproj and .sln in the repository (git) anymore, but a python script that re-genrates them from the source tree, together with VS 2008 "property sheet templates" (or whatever they are called). This helps a lot making general adjustments.
The project generation script contains information about all the projects specialties (e.g. do they use MFC/ATL, will it create DLL or an EXE, files to exclude).
In addition, this script also contains dependencies, which feeds the actual build script.
This works quite well, the problems are minor: python requried in build systems, not forgetting to re-gen the project files, me having to learn some python to make adjustments to some projects.
#Michael Burr "How complex are the python scripts and whatever supporting 'templates' you might need?"
I honestly can't tell, since I gave the task to another dev (who picked python). The original task was to provide a build script, as the VS2008 solution build was not good enough for our needs, and the old batch file didn't support parallelization. .vcproj generation was added later. As I understand his script generates the .vcproj and .sln files from scratch, but pulls in all the settings from separate property sheets.
Pros:
Adding new configurations on the fly. Some of the projects already had six configurations, and planning for unicode support meant considering doubling them for a while. Some awkward tools still build as MBCS, so some libs do have 8 configs now. Configuring that from hand is a pain, now it just doesn't bother me anymore.
Global changes, e.g. moving around relative project paths, the folder for temp files and for final binaries until we found a solution we were happy with
Build Stability. Merging VC6 project files was a notable source of errors for various reasons, and VC9 project files didn't look better. Now things seem isolated better: compile/link settings in the property sheets, file handling in the script. Also, the script mostly lists variations from our default, ending up easier to read than a project file.
Generally: I don't see a big benefit when your projects are already set up, they are rather stable, and you don't have real issues. However, when moving into the unknown (for us: mostly VC6 -> VC9 and Unicode builds), the flexibility reduced the risk of experiments greatly.
Create a new empty solution and add your source code to it.
For example,
File>New>Project...
Visual C++>Win32>Win32 Console Application
Application Settings>
- Uncheck "Precompiled Header"
- Check "Empty Project"
Project is then created. To add existing code:
Project>Add Existing Item...>
- Select file(s) to add
Recompile, done!
In the "Solution Explorer" you can click on the "Show All Files" button to have Visual Studio display the files as they exist on the file system (directories and all).
In my opinion this is an imperfect workaround, but I believe it's the best available. I'm unaware of a plug-in, macro or other tool that'll import a directory into an actual project with folders that mirror the file system's.
I know this question is already marked correct, but I was able to import existing code into a project with Visual Studio 2008 by doing "File" -> "New Project from existing code". The directory structure of my code was retained.
You can always switch view from project menu
For eg. Project->Show All Files
The above will display the files in unformated raw file system order
Not sure of older versions but it works on VS 2010
I understand you, I have the same problem: many .cpp and .h files organized in many folders and subfolders with include paths written for this folder structure. The only way you can do to import this folder structure together with the source files is to use "Show All Files" and then right-click on folders and select "Import in Project". This works for me when I am using C-Sharp projects. But it does not work for my C++ Projects. I am still searching for a solution...
I'm using Eclipse with C++ code via linked resources on Linux. The code analysis index seems to be corrupted (Goto definition lands the cursor close to, but not on, the definition) Refreshing resources doesn't fix it, neither does restarting Eclipse.
Is there a way to flush the index and rebuild it?
Right-click on your project, go under the Index submenu, and choose either "Rebuild," "Update with modified files," or "Freshen all files."
I don't know the difference between those three options, but one of "Update with modified files" or "Freshen all files" usually fixes it for me.
Also, I'm sure you've already done this, but make sure that you're running the latest version of the Eclipse CDT. Current versions seem to have much more reliable indexing than previous versions.
From http://dev.eclipse.org/mhonarc/lists/cdt-dev/msg10390.html, the differences between "Rebuild," "Update with modified files," or "Freshen all files":
Rebuild: Works for entire projects, only. Clears the index and indexes
the files from scratch. When cancelled it leaves you with an empty or
partial index.
Update with Modified Files: Works on a resource
selection. Checks on individual files whether the timestamp or the
scanner-config has been changed and updates the index for the changed
files.
Freshen All Files: Works on a resource selection. Updates the
selected files in the index. The index is not cleared, it is safe to
cancel the operation.
Go to your project properties -> C++ general -> Indexer.
Do this with 'project specific settings',
(or on 'Configure Workspace Settings...').
Deselect 'Enable Indexer' hit Apply.
Select 'Enable Indexer' hit Apply.
This should completely wipe out and rebuild the index.
Neither of the above worked for me (Eclipse Indigo), index still broken and refusing to rebuild properly. Until applied this one:
http://slsam2.blogspot.com/2012/02/eclipse-cdt-index-not-working.html
The crucial bit of the linked post is this:
Eclipse no longer treats your project as a C++ project. Choose menu File/New/Convert to a C/C++ project. It takes a while to index the source code.
I still wonder how Eclipse can uncontrollably shoot itself in the foot like that. I suspect that installing additional packages can trigger it. Perhaps JavaScript support in my case.
delete only the .pdom file under .metadata.plugins\org.eclipse.cdt.core helps, I got the indexer screwed after upgrading Neon.2 to Neon.3 and this seems to solve the problem.
(this comment already exists above but am not allowed to confirm it up there).
I found that I had the global indexer set to 'Use the build configuration specified in the project's indexer settings',
and the project's indexer set to NOT use project specific indexer settings.
Regardless, it was using the same fixed configuration for the indexer regardless of which configuration I had selected.
The fix:
Window-Preferences, C/C++, Indexer. Select "Use active build configuration" in section "Build configuration for the indexer".
Happy days.
Did you try adding -clean to the command line for the eclipse executable?
Eclipse no longer treats your project as a C++ project. Choose menu File/New/Convert to a C/C++ project. It takes a while to index the source code. worked for me
I started with trying Josh Kelleys and mmmmms answers without any luck, but I finally fixed it by checking my include paths.
One way to see them are in the Project Explorer, expand project and there should be an entry "Includes". Inside that, check for a small yellow warning triangle on each include path. If that triangle is present eclipse most likely doesn't recognize the path.
The include paths are edited through right-clicking on "Your project" in the Project explorer, then choose "Properties" --> C/C++ General --> Paths and Symbols --> Includes.
I see three language options, Assembly, Gnu C, Gnu C++. Choose the correct one before starting to add paths (likely Gnu C++). After adding all the paths, -->Apply --> Ok and rebuild index if you're asked to.
My erroneous workspace paths looked like MyProject/MyProject/folder when it was supposed to be MyProject/folder.
For me the "Problems"-view is always slow to update, even after rebuilding index. To be sure that the error is still there, double-click the problems entry so that eclipse opens/reloads the file in question. This often seems necessary for me to update the "Problems" view.
I don't really know if it was eclipse or my scm that messed it up. Anyway, hope it helps someone!
I use Luna and builds with an external makefile.