syn keyword cOperator  ssizeof fieldsizeof countof assert offsetof fieldtypeof bitsizeof
syn keyword cStatement p_delete p_new p_new_raw p_clear p_realloc
syn keyword cStatement mp_delete mp_new mp_new_raw
syn keyword cStatement p_dup p_dupstr p_dupz

syn keyword isGlobal   _G
syn match   isGlobal "\<[a-zA-Z_][a-zA-Z0-9_]*_g\>"
syn match   isGlobal "\<[gs][A-Z][a-zA-Z0-9_]*\>"

syn keyword cType byte
syn match cFunction "\<\([a-z][a-zA-Z0-9_]*\|[a-zA-Z_][a-zA-Z0-9_]*[a-z][a-zA-Z0-9_]*\)\> *("me=e-1
syn match cPreProc "[$@]\<\([a-z][a-zA-Z0-9_]*\|[a-zA-Z_][a-zA-Z0-9_]*[a-z][a-zA-Z0-9_]*\)\>"
syn match cType "\<[a-zA-Z_][a-zA-Z0-9_]*_[bft]\>"

hi def link isGlobal Function
hi def link cStructure Type
hi def link cStorageClass Statement