## Lua functions ~~~ _G _VERSION assert collectgarbage dofile error getmetatable ipairs loadfile load next pairs pcall print rawequal rawget rawlen rawset require select setmetatable tonumber tostring type xpcall bit32.arshift bit32.band bit32.bnot bit32.bor bit32.btest bit32.bxor bit32.extract bit32.lrotate bit32.lshift bit32.replace bit32.rrotate bit32.rshift coroutine.create coroutine.resume coroutine.running coroutine.status coroutine.wrap coroutine.yield debug.debug debug.getuservalue debug.gethook debug.getinfo debug.getlocal debug.getmetatable debug.getregistry debug.getupvalue debug.setuservalue debug.sethook debug.setlocal debug.setmetatable debug.setupvalue debug.traceback debug.upvalueid debug.upvaluejoin file:close file:flush file:lines file:read file:seek file:setvbuf file:write io.close io.flush io.input io.lines io.open io.output io.popen io.read io.stderr io.stdin io.stdout io.tmpfile io.type io.write math.abs math.acos math.asin math.atan math.atan2 math.ceil math.cos math.cosh math.deg math.exp math.floor math.fmod math.frexp math.huge math.ldexp math.log math.max math.min math.modf math.pi math.pow math.rad math.random math.randomseed math.sin math.sinh math.sqrt math.tan math.tanh os.clock os.date os.difftime os.execute os.exit os.getenv os.remove os.rename os.setlocale os.time os.tmpname package.config package.cpath package.loaded package.loadlib package.path package.preload package.searchers package.searchpath string.byte string.char string.dump string.find string.format string.gmatch string.gsub string.len string.lower string.match string.rep string.reverse string.sub string.upper table.concat table.insert table.pack table.remove table.sort table.unpack ~~~ ## [](https://github.com/andycai/luaprimer/blob/master/12.md#c-api)C API ~~~ lua_Alloc lua_CFunction lua_Debug lua_Hook lua_Integer lua_Number lua_Reader lua_State lua_Unsigned lua_Writer lua_absindex lua_arith lua_atpanic lua_call lua_callk lua_checkstack lua_close lua_compare lua_concat lua_copy lua_createtable lua_dump lua_error lua_gc lua_getallocf lua_getctx lua_getfield lua_getglobal lua_gethook lua_gethookcount lua_gethookmask lua_getinfo lua_getlocal lua_getmetatable lua_getstack lua_gettable lua_gettop lua_getupvalue lua_getuservalue lua_insert lua_isboolean lua_iscfunction lua_isfunction lua_islightuserdata lua_isnil lua_isnone lua_isnoneornil lua_isnumber lua_isstring lua_istable lua_isthread lua_isuserdata lua_len lua_load lua_newstate lua_newtable lua_newthread lua_newuserdata lua_next lua_pcall lua_pcallk lua_pop lua_pushboolean lua_pushcclosure lua_pushcfunction lua_pushfstring lua_pushinteger lua_pushlightuserdata lua_pushliteral lua_pushlstring lua_pushnil lua_pushnumber lua_pushstring lua_pushthread lua_pushvalue lua_pushvfstring lua_rawequal lua_rawget lua_rawgeti lua_rawlen lua_rawset lua_rawseti lua_rawgetp lua_rawsetp lua_register lua_remove lua_replace lua_resume lua_setallocf lua_setfield lua_setglobal lua_sethook lua_setlocal lua_setmetatable lua_settable lua_settop lua_setupvalue lua_setuservalue lua_status lua_toboolean lua_tocfunction lua_tointeger lua_tointegerx lua_tolstring lua_tonumber lua_tonumberx lua_topointer lua_tostring lua_tothread lua_tounsigned lua_tounsignedx lua_touserdata lua_type lua_typename lua_upvalueid lua_upvalueindex lua_upvaluejoin lua_version lua_xmove lua_yield lua_yieldk ~~~ ## [](https://github.com/andycai/luaprimer/blob/master/12.md#auxiliary-library)auxiliary library ~~~ luaL_Buffer luaL_Reg luaL_addchar luaL_addlstring luaL_addsize luaL_addstring luaL_addvalue luaL_argcheck luaL_argerror luaL_buffinit luaL_buffinitsize luaL_callmeta luaL_checkany luaL_checkinteger luaL_checkint luaL_checklong luaL_checklstring luaL_checknumber luaL_checkoption luaL_checkstack luaL_checkstring luaL_checktype luaL_checkudata luaL_checkunsigned luaL_checkversion luaL_dofile luaL_dostring luaL_error luaL_execresult luaL_fileresult luaL_getmetafield luaL_getmetatable luaL_getsubtable luaL_gsub luaL_len luaL_loadbuffer luaL_loadbufferx luaL_loadfile luaL_loadfilex luaL_loadstring luaL_newlib luaL_newlibtable luaL_newmetatable luaL_newstate luaL_openlibs luaL_optinteger luaL_optint luaL_optlong luaL_optlstring luaL_optnumber luaL_optstring luaL_optunsigned luaL_prepbuffer luaL_prepbuffsize luaL_pushresult luaL_pushresultsize luaL_ref luaL_requiref luaL_setfuncs luaL_setmetatable luaL_testudata luaL_tolstring luaL_traceback luaL_typename luaL_unref luaL_where ~~~