Question

In C++, I have a map<string, string>, containing an unknown number of entries. How can I pass this to a Lua function, so that the Lua function can use the data as a table?

Answer 1

if you want a real lua table:

lua_newtable(L); int top = lua_gettop(L);  for (std::map::iterator it = mymap.begin(); it != mymap.end(); ++it) {     const char* key = it->first.c_str();     const char* value = it->second.c_str();     lua_pushlstring(L, key, it->first.size());     lua_pushlstring(L, value, it->second.size());     lua_settable(L, top); } 

with the right types for your map substituted in..