What does this extension do?

This will get you the bleeding-edge syntax highlighting for C++. Which means your theme will be able to color your code better. This used to be a fix, but then VS Code starting using it as the official source for C and C++ highlighting.

NOTE: The default VS Code theme does not color much. Switch to the Dark+ theme (installed by default) or use a theme like one of the following to benefit from the changes:

How do I use the extension?

Just install the VS Code extension and the changes will automatically be applied to all relevant files.
Link: https://marketplace.visualstudio.com/items?itemName=jeff-hykin.better-cpp-syntax

Comparison (Material Theme)

How do I use the grammar? (as an upstream for my non-vs code editor)

Watch the the "Major Changes" thread here to know when I change licenses, the codebase structure, or just major highlighting changes.
I support non-VS Code usecases. E.g. yes, you are welcome to open issues like this one that don't affect VS Code.

What is different from atom/language-c?

It fixes:

The issue of single quotes inside #error and #warning being highlighted when then shouldn't be
The issue of initialization functions only highlighting the first parenthesis
The bug that treats the 'and' and 'or' operator as functions (instead of operators) when they are followed by ()'s
Old C99 function highlighting that broke the standard function highlighting
The failure of highlighting for the semicolon after namespaces
The missing operator overloading symbols
The failure to tag operator overloading functions as functions
The failure to tag implicit operator overrides
The marking of some %'s as invalid inside of strings atom/language-c#289
The highlighting of namespaces with ::'s atom/language-c#260
The issue of the C++ syntax depending on (and getting screwed up by) the C syntax
multiple inheritance atom/language-c#245
And many many more issues (#318, #309, #270, #246, etc)

It adds:

Parameter highlighting
Highlighting of embedded assembly code (if you have an assembly syntax installed)
Function-pointer highlighting
Lambda highlighting
C++14 literal support (100'000ms)
Template definition syntax highlighting (including C++ 2020 syntax)
Better object identification
Improved scope resolution :: syntax
Highlighting of templated function calls aFunction<int>(arguments)
Additional specificity for many existing tags
Many other features

Like this extension?

You'll probably like this as well: My "Better Syntax" Megapack

Contributing

If you'd like to help improve the syntax, take a look at main/main.rb. And make sure to take a look at documentation/CONTRIBUTING.md to get a better idea of how the code works.

Planned future fixes/features:

Add tagging for type-casting statements
Add tagging for custom types words
Better support for dereferenced/pointer tagging
Full C++ 2020 support (module imports, arrow return types, etc.)
Improving template types

What if I see a highlighting bug?

Let me know! Post an issue on https://github.com/jeff-hykin/better-cpp-syntax I love regular expressions, and PR's are always welcome.

Did you write all of this yourself?

The original JSON was taken from https://github.com/atom/language-c
@matter123 wrote every massive pull request, from simple bugfixes up to the entire textmate testing suite
@j-cortial has fixed many lingering bugs
The #error fix was taken from fnadeau's pull request here: atom/language-c#251
Thank you @matter123, @j-cortial, and @fnadeau!
The rest of the ruby is authored by @jeff-hykin

jeff-hykin/better-cpp-syntax

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