CODEWITHSUNDEEP
c++11vim
swang
swang

Reputation: 5249

vim c++11 constexpr highlight

The new c++ keyword constexpr is not highlighted by vim. I have tried plugins like this one: http://www.vim.org/scripts/script.php?script_id=4617

It worked very well for everything else except constexpr.

Does anyone know how I can turn syntax highlight on for constexpr in my cpp.vim (or by using other methods)?

Upvotes: 1

Views: 353

Answers (1)

user197015
user197015

Reputation:

In vim 7.4 (and probably earlier, but 7.4 is what I have installed), constexpr should be set up by the standard cpp.vim file, which should be a part of your installation.

It is, however, guarded in a test for the cpp_no_cpp11 variable:

" C++ 11 extensions
if !exists("cpp_no_cpp11")
  syn keyword cppType       override final
  syn keyword cppExceptions noexcept
  syn keyword cppStorageClass   constexpr decltype
  syn keyword cppConstant   nullptr
endif

You can :echo exists("cpp_no_cpp11"); if the result is 1, that would explain why you don't see the highlighting (you'll have to diagnose your configuration to see why it's getting set, though).

Alternatively you can go for a brute force method and put

syn keyword cppStorageClass constexpr

in your .vimrc (along with whatever other else you want; seems like you'll also be missing decltype, et cetera). Or you can put the command in a script file that you load via autogroup or using the "after" directory (like the plugin you linked) if you want to be gentler in your approach.

(Note that the plugin you linked doesn't attempt to add C++11 keyword highlighting at all, at least not for constexpr. It's mostly concerned with functions and type names.)

Upvotes: 1

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