What does this do?

This will get you the bleeding-edge syntax highlighting for C, C++, Objective-C, and Objective-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. Use a theme like one of the following to benefit from the changes:

• Material Theme
• Noctis
• XD Theme
• One Monokai Theme
• Winteriscoming
• Popping and Locking
• Syntax Highlight Theme

How do I use it?

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

Before	After

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 initilization functions only highlighting the first paraenthese
• 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

Contributing

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

Planned future fixes/featues:

• Add tagging for type-casting statements
• Add tagging for template-usage (rather than only template definition)
• Add tagging for custom types words
• Better support for dereferenced/pointer tagging

What if I see a highlighting bug?

Let me know! Post an issue on https://github.com/jeff-hykin/cpp-textmate-grammar I love regular expressions, and I plan on actively maintaining this.

Did you write all of this youself?

The original JSON was taken from https://github.com/atom/language-c
The #error fix was taken from fnadeau's pull request here: atom/language-c#251
@matter123 has written basically every pull request, from simple bugfixes up to the entire textmate testing suite
Thanks @matter123!
The rest of the ruby is authored by @jeff-hykin