Re: 5.0 changes question
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- Subject: Re: 5.0 changes question
- From: Brian Hook <hook_l@...>
- Date: Wed, 5 Mar 2003 20:04:21 -0800
>The first is that lua_getn() has gone away -- what's the proper
>replacement?
Just found Peter Shook's reply about this in the archives (couldn't
find anything on lua_getglobals though). Does this code snippet
remain valid for Lua5?
static int my_getn(lua_State *L, int index)
{
int n;
luaL_checktype(L, index, LUA_TTABLE); /* is it a table? */
lua_pushliteral(L, "table");
lua_gettable(L, LUA_GLOBALSINDEX);
lua_pushliteral(L, "getn");
lua_gettable(L, -2);
lua_pushvalue(L, index);
lua_call(L, 1, 1); /* call table.getn(t) */
n = lua_tonumber(L, -1);
lua_pop(L, 2);
return n;
}