setlocal textwidth=100

" indent 4 spaces
setlocal shiftwidth=4
setlocal tabstop=4
setlocal softtabstop=4
setlocal expandtab

setlocal nosmartindent
setlocal autoindent
setlocal cinkeys-=0#     " don't reindent PP directives
setlocal cinoptions+=:0  " don't indent case labels

" Load the doxygen syntax
let b:load_doxygen_syntax = 1

augroup fswitch
    au BufEnter *.h   let b:fswitchdst  = 'cpp,c'
    au BufEnter *.h   let b:fswitchlocs = 'reg:|include.*|source|'
    au BufEnter *.cpp let b:fswitchdst  = 'h'
    au BufEnter *.cpp let b:fswitchlocs = 'reg:|source|include/**|'
augroup END

let g:switch_const_definitions =
    \ [ {
    \   '\%(const \)\@!\([[:alnum:]_:<>]\{-}\) \%(&\)\@!': 'const \1 ',
    \   'const \([[:alnum:]_:<>]\{-}\) &\@!': 'const \1 &' ,
    \   'const \([[:alnum:]_:<>]\{-}\) &': '\1 '
    \ } ]

nnoremap <buffer> <leader>c :call switch#Switch(g:switch_const_definitions, {})<cr>

nnoremap <buffer> gd :YcmCompleter GoTo<CR>
nnoremap <buffer> <C-W>d :vs<CR>:YcmCompleter GoTo<CR>

" format with =
map <buffer> = <Plug>(operator-clang-format)
vnoremap <buffer> = :ClangFormat<CR>
" restore = mapping to g=
nnoremap <buffer>g= =
vnoremap <buffer>g= =

setlocal errorformat=
setlocal errorformat+=%f:%l:%c:\ %trror:\ %m
setlocal errorformat+=%f:%l:%c:\ %tarning:\ %m
setlocal errorformat+=%D%*\\a[%*\\d]:\ Entering\ directory\ [`']%f'
setlocal errorformat+=%X%*\\a[%*\\d]:\ Leaving\ directory\ [`']%f'
setlocal errorformat+=%D%*\\a:\ Entering\ directory\ [`']%f'
setlocal errorformat+=%X%*\\a:\ Leaving\ directory\ [`']%f'
setlocal errorformat+=%*[^[]\[%tRROR\]%m\ \[%f:%l\]
setlocal errorformat+=%*[^[]\[%tARNING\]%m\ \[%f:%l\]

setlocal foldmethod=syntax
" set foldlevel according to number of matches of 'namespace' and 'class' not
" containing ';'
function! InitialFoldLevel()
    let v:errmsg = ""
    keepjumps keeppatterns silent! 1,/}/s/^\(namespace\|class\) \+[^;]*$//n
    if v:errmsg == ""
        let &foldlevel=str2nr(split(v:statusmsg)[0])
    endif
endf
call InitialFoldLevel()