c.vim

放在 /usr/share/vim/vim80/syntax/c.vim 最后:

syn match cFunctions "<[a-zA-Z_][a-zA-Z_0-9]*>[^()]*)("me=e-2
syn match cFunctions "<[a-zA-Z_][a-zA-Z_0-9]*>s*("me=e-1
hi cFunctions ctermfg=3 gui=bold
syn keyword cXhc  	     std io
syn keyword cType       LL Iter uint
hi cXhc gui=bold