luaL_checklong
[-0, +0, v]
long luaL_checklong (lua_State *L, int narg);

Checks whether the function argument narg is a number and returns this number cast to a long.

EVERYTHING
Functions and Types
luaL_addchar
luaL_addlstring
luaL_addsize
luaL_addstring
luaL_addvalue
luaL_argcheck
luaL_argerror
luaL_Buffer
luaL_buffinit
luaL_callmeta
luaL_checkany
luaL_checkint
luaL_checkinteger
luaL_checklong
luaL_checklstring
luaL_checknumber
luaL_checkoption
luaL_checkstack
luaL_checkstring
luaL_checktype
luaL_checkudata
luaL_dofile
luaL_dostring
luaL_error
luaL_getmetafield
luaL_getmetatable
luaL_gsub
luaL_loadbuffer
luaL_loadfile
luaL_loadstring
luaL_newmetatable
luaL_newstate
luaL_openlibs
luaL_optint
luaL_optinteger
luaL_optlong
luaL_optlstring
luaL_optnumber
luaL_optstring
luaL_prepbuffer
luaL_pushresult
luaL_ref
luaL_Reg
luaL_register
luaL_typename
luaL_typerror
luaL_unref
luaL_where

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