Re: key-value table from c side

[Coda Highland <chighland@...>]

On Mon, Dec 3, 2012 at 1:47 PM, Philipp Kraus
<philipp.kraus@flashpixx.de> wrote:
> Hello,
>
> I use lua_createtable for push std::vectors to my Lua function, it works
> well.
> I would like to push also the std::map as key-value structure to Lua,
> so I have got
>
> lua_createtable(m_lua, p_map.size(), 0);
>
> for( typename std::map<std::string, int>::const_iterator it = p_map.begin();
> it != p_map.end(); ++it )
>
> {
>   lua_pushstring(m_lua, it->first.c_str());
>   lua_pushnumber(m_lua, it->second);
>   // should here a pop call on the stack?
> }
> // should here also a pop call on the stack?
>
> Which calls must be added, so I can use a table in the script, that has a
> structure
> table["key"] = value ?
>
>
> In this case another question is occured: Can I used also a std::multimap?
> So can Lua handle tables with
> duplicated keys or must be the keys unique?
>
> Thanks
>
> Phil
>

You'd use lua_setfield() after those two pushes, and that'll pop them
for you, and Lua keys have to be unique. Check the docs for more
details.

/s/ Adam