if !has('conceal')
    finish
endif

setlocal conceallevel=1
syntax clear cOperator

"syntax match cOperator "++" conceal cchar=⧺

"syntax match cOperator "=\@<!===\@!" conceal cchar=⇔
syntax match cOperator "!=" conceal cchar=≠
syntax match cOperator "<=" conceal cchar=≤
syntax match cOperator ">=" conceal cchar=≥

syntax match cOperator "<<" conceal cchar=«
syntax match cOperator ">>" conceal cchar=»

syntax match cOperator "::" conceal cchar=∷
syntax match cOperator "->" conceal cchar=→

syntax match cOperator "||" conceal cchar=∥

hi! link cOperator Operator
hi! link Conceal Operator