如何删除由<代码>luaL_newmetatable(L,“foo” );创建的一张表<代码>foo,以便luaL_getmetatable(L,“foo” );将再次推动NIL的增值?
无论你需要删除元件,都是可能的。 luaL_newmetatable(L,“foo”) 创立了一个表格,储存在Lua登记处,主要有“foo”。
删除表格,在登记册中将“外地代码”“foo”列入nil。 C中的法典:
lua_pushnil(L);
lua_setfield(L, LUA_REGISTRYINDEX, "foo");
Lua的等效法:
debug.getregistry()["foo"] = nil
Currently I know how to have C++ objects instantiated and passed around in Lua using SWIG bindings, what I need is the reverse. I am using Lua & C++ & SWIG. I have interfaces in C++ and ...
I want to use lua (that internally uses only doubles) to represent a integer that can t have rounding errors between 0 and 2^64-1 or terrible things will happen. Is it possible to do so?
I have some lua script that have some long running task like getting a web page so I make it yield then the C code handle get page job async, so the thread free to do other job and after a specify ...
I have a lua table that I use as a hashmap, ie with string keys : local map = { foo = 1, bar = 2 } I would like to "pop" an element of this table identified by its key. There is a table.remove() ...
I ve hit s small block with string parsing. I have a string like: footage/down/temp/cars_[100]_upper/cars_[100]_upper.exr and I m having difficulty using gsub to delete a portion of the string. ...
I m using Electro in Lua for some 3D simulations, and I m running in to something of a mathematical/algorithmic/physics snag. I m trying to figure out how I would find the "spin" of a sphere of a ...
I have 3 lua files, Init.lua, FreeCamera.lua and Camera.lua , init.lua calls require "Core.Camera.FreeCamera" Free Camera: module(...) require "Core.Camera.Camera" local M = {} FreeCamera = M M ...
I need a game state object in lua(not c++ or tied to C++) to manage lights, cameras, objects, events from my C++ engine (the lua objects are seperate entities from c++, pretty much just standard lua ...