luaL_optlstring

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
version(LUA_52_STATIC)
extern (C) @nogc nothrow
const(char)*
luaL_optlstring
(,
int numArg
,
const(char)* def
,
size_t* l
)

Meta