Re: Pushing custom-type elements into the stack.

[L-28C <kixdemp@...>]

I've been reluctant to buy that because I thought it only covered the 
basics of Lua coding, like, not the C API... But now that you say it 
does, I have some questions:

1) What does it cover the most? I already know most of the "plain Lua" 
part of it, I've made 2 games for the PSP Lua Player.
2) Is it the best book about it out there?

And back to the subject, it prints out just a number '1'... Looking at 
the code, it seems it can either be a userdata or a table, so it's a 
userdata... But what does the '1' mean?

Thanks for everything, Mr. Smith!

Wesley Smith wrote:
> I would highly recommend picking up programming in Lua.  It has all
> kind of stuff in there like this.  You will learn Lua much faster!
>
> int stackDump(lua_State *L)
> {
> 	int i;
> 	int top = lua_gettop(L);
> 	
> 	printf("stack dump %d:\n", top);
> 	for(i=top; i >= 1; i--) {
> 		int t = lua_type(L, i);
> 		
> 		switch(t)
> 		{
> 			case LUA_TSTRING:
> 					printf("%d \t'%s' string\n", i, lua_tostring(L, i));
> 					break;
> 					
> 			case LUA_TBOOLEAN:
> 					printf(lua_toboolean(L, i) ? "\ttrue\n" : "\tfalse\n");
> 					break;
> 					
> 			case LUA_TNUMBER:
> 					printf("%d \t'%f' number\n", i, lua_tonumber(L, i));
> 					break;
> 			
> 			case LUA_TLIGHTUSERDATA:
> 					printf("%d \t'%x'\n", i, lua_touserdata(L, i));
> 					break;
> 					
> 			case LUA_TUSERDATA:
> 					printf("%d ", i);
> 					lua_getglobal(L, "print");
> 					lua_pushvalue(L, i);
> 					lua_call(L, 1, 0);
> 					//printf("%d \t'%x %s'\n", i, lua_touserdata(L, i), T::name);
> 					break;
> 					
> 			case LUA_TFUNCTION:
> 					printf("%d \t'func: %x'\n", i, lua_tocfunction(L, i));
> 					break;
> 			
> 			case LUA_TTABLE:
> 					printf("%d ", i);
> 					lua_getglobal(L, "print");
> 					lua_pushvalue(L, i);
> 					lua_call(L, 1, 0);
> 					break;
> 			
> 			default:
> 					printf("%d \t'%s'\n", i, lua_typename(L, t));
> 					break;
> 		}
> 	}
> 	
> 	return 0;
> }