Re: key-value table from c side

[Coda Highland <chighland@...>]

On Mon, Dec 3, 2012 at 1:56 PM, Philipp Kraus
<philipp.kraus@flashpixx.de> wrote:
>
> Am 03.12.2012 um 22:44 schrieb Coda Highland:
>
>> 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.
>
> Thanks, but how can I use the setfield with a map like std::map<int, std::String>.
> setfield need a char value.
>
> Thanks
>
> Phil
>
>

lua_settable if your key is a number.

/s/ Adam