In my C++ code vim shows red highlighted brackets in the following piece:
This is some in-built functionality as I tried removing .vimrc, but it still shows them red. What's going on and how to fix it?
Vim has only very limited C++ syntax highlighting capability built in. There is currently no support for C++11.
But there are, of course, plugins! Here's one that makes the error go away:
C++11 Syntax Support: A port of the existing C++ syntax to allow for C++11 features
To install, download the archive and extract the files into your ~/.vim/syntax directory. Enable the C++11 file type with :setf cpp11 or follow the instructions on the plugin home page.
Related
I installed Microsoft's C++ extension on VSCode, but when I'm writing C++ code,
my screen looks like this.
The autocompletion feature works, but there is no documentation/proper description given to me for any of the built-in C++ functions/classes. Compare the above to what it looks like on an official screenshot of the C++ VSCode extension.
I have my \msys64\mingw64\bin folder added to path too, so there shouldn't be a problem there. Any suggestions on how I can fix the tooltips my IDE gives me for C++?
I got syntax highlighting errors in PhhpStorm when using the EcmaScript6 (harmony version) module syntax.
When I use this code (to be sure its not a fault): https://github.com/stefanpenner/ember-app-kit-todos/blob/master/app/models/todo.js
Then I get the following errors in my editor:
I have enabled Ecmascript Harmony for the Javascript syntax highlighting in the settings.
Edit: see here a second example using an import call:
ES6 modules are still unsupported, vote for the issue on JetBrains bug tracker.
Support Harmony modules
I'm just beginning to learn programming (on C++), and by beginning I mean total beginning ("hello world" beginning...). Not wanting to use multiple IDE's, I would like to be able to code and build–simple–programs with my text editor, Sublime Text 2. Could someone indicate me, with a step-by-step tutorial, how to implement C++ compiling and executing capabilities in Sublime Text.
I've searched Sublime Text build systems on the site, but the answers are very specific and can't help a rookie like me (but they'll probably help me later).
Thanks
Sublime Text 2 will allow you to build .cpp files within the application, but you must have the GNU c++ compiler installed on your machine and defined on your path in order for it to work.
The following link provides a version of g++ for you to use and has detailed instructions for doing this
http://www.claremontmckenna.edu/pages/faculty/alee/g++/g++.html
once youve installed g++ you'll be able to build your .cpp file and run it from with in sublime text 2.
Happy coding! :)
How to turn off error highlighting (red wave under the code) for c++11 cycle range-based operators like that?
int myint[] = {1,2,3,4,5};
for (auto x : myint){/**/}
Hover prompt shows "unexpected token :". The code compiles perfectly.
Another issue - the autocomplete doesn't show unique_ptr in std:: namespace, though compiles OK.
Qt Creator 2.4.0 Based on Qt 4.7.4 (32 bit) Built on Dec 12 2011 at
01:10:32
I don't understand the line of reasoning in Andrew's answer. Why would customizing syntax checking make sense? The syntax is either correct given the context set by the compiler command line, or it is wrong. If it is wrong, it should be marked as such, if not, not. If correct code is marked as wrong, it is a bug, or at least unsupported feature, in the IDE, and it needs a fix, not "customization".
Having said that, the cited example
int myint[] = {1,2,3,4,5};
for (auto x : myint){/**/}
works fine here (fairly recent build from master branch).
Regarding the other comment on Kate: Kate's syntax highlighting is used by Qt Creator as fallback in cases where there is no more specific syntax highlighting available for a file. In the case of C++ (98/03/11) there is a real code model used, not Kate's definitions.
There is "syntax highlighting" (coloring) and there is "syntax checking" (wavy underlines). The syntax coloring does seem to be related to Kate as #Koying suggests, you can modify the colors and turn it off. As of Qt Creator 2.5.0 it doesn't seem to have a problem with most C++11 examples I paste off the web, although your example does indeed still have the underline:
http://labs.qt.nokia.com/2012/05/09/qt-creator-2-5-0-released/
Also unfortunately, at the time of writing (June 13th 2012, which is about a month after the release) the latest integrated SDK package is still installing Qt Creator 2.4.1 by default. :-/
If this is the boat someone is in and wants to try the latest, don't do what I did by wiping out your Qt SDK install using /opt/QtSDK/SDKMaintenanceTool! That wasted time on a reinstall, after which I executed a sudo rm -r /opt/QtSDK/QtCreator, then told the new Qt Creator release to install to /opt/QtSDK/QtCreator. I'll update this post if I hit a snag with that choice!
http://qt-project.org/wiki/Qt_Creator_Releases
BUT though it seems to work with many C++11 constructs it does nothing for your example nor the particular case I tripped across, which is the unspaced<nested<syntax>> for templates.
(Note: It may seem like a minor thing, but it's a big C++11 feature for me. I hate dealing with having to do tailspaced<nested<syntax> >...which led me to always do fullyspaced< nested< syntax > > on all templates to keep things consistent. Even simple cases like vector< int >. Now that they fixed the compiler, I'm ready to kill all of that whitespace noise.)
There doesn't seem to be any way to turn off the wavy underlines (unless you recompile Qt Creator??).
in qt-creator-2.5.0-src\src\plugins\cpptools\cppmodelmanager.cpp:
QTextCharFormat errorFormat;
/* disable error underline
errorFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);
errorFormat.setUnderlineColor(Qt::red);
*/
// set up the format for the warnings.
QTextCharFormat warningFormat;
/* disable warning underline
warningFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);
warningFormat.setUnderlineColor(Qt::darkYellow);
*/
Either way, it's an insane consequence of duplicating the work of the compiler in the IDE instead of having the two share front-end code. We live in the dark ages of software. Won't someone save us? [/rant]
Here's some of the relevant code (I think):
https://qt.gitorious.org/qt-creator/qt-creator/blobs/master/src/plugins/cppeditor/cpphighlighter.cpp
...and the lexer here, note the member _cxx0xEnabled:
https://qt.gitorious.org/qt-creator/qt-creator/blobs/master/src/libs/cplusplus/SimpleLexer.cpp#line80
Besides your for syntax, the template spacing is the only thing I've found in C++11 that causes the lines. That's major enough to me that I might just build my own QtCreator to address it!
If you're writing in C++11 you should change from using QT Creator as the IDE to using Eclipse CDT. At least this is how I solved this problem. QT Creator doesn't seem to have any way to customize this real-time syntax checking. Eclipse on the other hand is extensively customizable in this regard.
Update: I think that QtCreator has improved its support for newer versions of C++ since this answer was given, so it is no longer correct. I can't delete it as it is an accepted answer.
Qt Creator is using the syntax highlighting definitions from the Kate editor (from KDE). See Tools-Options-Text Editor-Generic Highlighter.
If Kate has a definition for c++11, you can use it or you can develop your own.
Using MSVC compiler, you need to add the line:
/std:c++11
To your project's project.cxxflags configuration file, where project must be replaced by the name of your project. This file is located at the root of your project directory, you may have to create it if it does not already exist.
Remark: this setting is a MSVC parameter so the syntax would likely be different for other compilers.
Tested with Qt Creator 4.15.0-rc1 (April 2021) and Visual Studio 2017 on Windows, where the error:
`error: no member named 'optional' in namespace 'std'` when trying to use std::optional from header <optional>
disappear when adding /std:c++17 (std::optional was added in C++17).
I'm using an uncommon C compiler with Eclipse CDT. I have a make file setup which is nice, but I'd like IDE integration with the error / warning output of my compiler.
Does anybody know what steps I can take to write a plugin for parsing / supporting my compilers output? I think it should be easy but there is a barrier of entry of figuring out where to start. Would be nice if Eclipse would let me do New -> Compiler Error Parser Plugin, or something like that.
Thanks
It's not quite that simple...
First of all make sure you have the Eclipse PDE (Plug-in Development Environment) and CDT SDK installed. If not then you'll need to tell Eclipse to download them (Help -> Install New Software).
Then, create a new Plug-In project. In its Extensions tab, add a new extension against point org.eclipse.cdt.core.ErrorParser. You will then have to write some java code to actually implement it. Fortunately the PDE makes the meta-work relatively straightforward; you put the name of your class in the appropriate box and click on the "class*" hyperlink and it will offer to create a skeleton class for you.
I suggest you grab the source code to the CDT and have a look at GCCErrorParser.java as an illustration of the sorts of things yours will have to do.
Finally, when you're ready to test it, set up a debug configuration of type Eclipse Application. (This will spawn a second instance of Eclipse; it has to use a different workbench.) Go into the properties of your C project, Settings panel, Error Parsers tab and switch on your shiny new error parser.
In Eclipse CDT 7.0.1 it's pretty simple. Just add a new error parser
under Window -> Preferences -> C/C++ Build -> Settings
and add regular expression with 3 groups: filename, linenumber and error description.
For example, for Visual Studio compiler regexp will be:
(.*?)\((\d*)\)\s:\s(.*error.*)
$1 - filename
$2 - line number
$3 - error description
IBM has published a step-by-step guide to how you can write your own CDT parser, its available here
Relevant google search for future proofing should be:
https://www.google.com/search?q=ibm+eclipse+write+cdt+parser&oq=ibm+eclipse+write+cdt+error+parser
In CDT 7 there is going to be a regular expression error parser included which should make this sort of thing much simpler. There are some details on the faq.
CDT 7.0 won't be released until the end of June, but you could try milestone builds to see if it does what you want. These can be downloaded here. You'll need to have a matching milestone version of the eclipse platform too.
I am using this plugin:
http://www.isystem.com/downloads/downloads/204-Eclipse-Downloads.html
is this working ?
(.*)\((\d+)\)\s:\sError(.*)
file: $1
line: $2
desc: $3
.
srkos
In CDT 8 this functionality does not require a plugin. I have support for several compilers and build systems using simple regular expressions. See screenshot here. You can test the regexes directly in the console output before copying them to this dialog. If you need to move them between machines, the resulting parsers are stored in your workspace under .metadata/.plugins/org.eclipse.cdt.core