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Hi, I'm fairly new to Lua and this issue is driving me insane.  I'm trying to call table.getn() from C which seems to work on the Lua side but not inside the C code (see below).  Here is the code in question:

First the C function:

static int TestCall(lua_State* L)
   lua_pushstring(L, "table");
   lua_gettable(L, LUA_GLOBALSINDEX);
   lua_pushstring(L, "getn");
   lua_gettable(L, -2);
   lua_pushvalue(L, 1);
   lua_call(L, 1, 1);
   lua_remove(L, -2);

   printf("c_num: %d, %d\n", lua_isnumber(L, -1), lua_tonumber(L, -1));
   return 1;

And the Lua code:

sometable = {}
sometable[1] = 1;
sometable[2] = 2;

Now what this prints out when run is:

c_num: 1, 5

Meaning the stack value for the number of elements is 5 on the C side but magically turns into the correct value of 2 back in Lua.  WTF?

Thanks for any help...