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#1luaL_checkudata - 《Lua 5.3 参考手册》 - 书栈网· BookStack
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. 检查函数的第 arg 个参数是否是一个类型为 tname 的用户数据（参见 ...
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#228.2 – Metatables - Lua.org
Finally, luaL_checkudata checks whether the object at the given stack position is a userdatum with a metatable that matches the given name.
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#3luaL_checkudata inheritance checking - Stack Overflow
The luaL_checkudata() function that is normally used for type-safe access to a userdata's memory only checks for one specific userdata type.
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#4Lua: Functions and Types: luaL_checkudata - [email protected]
luaL_checkudata. [-0, +0, v] void *luaL_checkudata (lua_State *L, int narg, const char *tname);. Checks whether the function argument narg is a userdata of ...
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#5luaL_checkudata繼承檢查- C++ _程式人生
【C++】luaL_checkudata繼承檢查. 2021-01-13 C++. 我有以下情況: 一類名為“Base”，第二類名為“Derived”，其派生自“Base”。我使用元表來支援Lua中的繼承。
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#6C++ (Cpp) luaL_checkudata Examples - HotExamples
static int player_get(lua_State *L) { player_t *plr = *((player_t **)luaL_checkudata(L, 1, META_PLAYER)); const char *field = luaL_checkstring(L, ...
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#7c++ - luaL_checkudata继承检查 - IT工具网
但是我需要一个解决方案来检查传递的userdata是否从指定的类继承。 static int BaseGetMyVar(lua_State *state) { Base* base = *(Base**)luaL_checkudata(state, 1, "Base ...
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#8Lua Checkudata类型C | 码农家园
Object3D* a = static_cast<Object3D*>(luaL_checkudata(L, 1,"Object3D")); if (!a) { Object2D* b = static_cast<Object2D*>(luaL_checkudata(L, ...
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#9[Solved] C++ luaL_checkudata inheritance checking - Code ...
The luaL_checkudata() function that is normally used for type-safe access to a userdata's memory only checks for one specific userdata type.
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#10ways to avoid (or speed up) luaL_checkudata() in LuaJIT2?
iteration step, I use luaL_checkudata(). Now, the callgrind profiler tells me that almost 25% of the time to advance the iterator is spent in the call to ...
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#11Re: ways to avoid (or speed up) luaL_checkudata() in LuaJIT2?
the problem is that [luaL_checkudata] this function actually needs to > > create a new string in order to do the user data name check at all ...
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#12Lua 5.1 Reference Manual - luaL_checkudata - FxCodeBase
luaL_checkudata. void *luaL_checkudata (lua_State *L, int narg, const char *tname);. Checks whether the function argument narg is a userdata of the type ...
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#13luaL_checkudata - Torch 5
void *luaL_checkudata (lua_State *L, int narg, const char *tname);. Checks whether the function argument narg is a userdata of the type tname (see ...
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#14Lua教程（二十二）：userdata - 爱码帮™分享编程知识和开发 ...
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的数据都可以成为布尔 ...
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#15torch-oocairo/obj_path.c - GitHub
cairo_path_t **obj = luaL_checkudata(L, 1, MT_NAME_PATH);. cairo_path_destroy(*obj);. *obj = 0;. return 0;. } static int. path_each_iter (lua_State *L) {.
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#16Lua UserData 使用者自定義型別 - w3c學習教程
#define checkarray(l) (numarray*)lual_checkudata(l,1,"luabook.array") //優化. typedef struct numarray. numarray;. //建立陣列.
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#17Store lua reference to the fiber pointer (not it's id) - Issue ...
LUA_TNIL) { + struct lua_fiber *lua_fiber = luaL_checkudata(tarantool_L, -1, fiberlib_name); + lua_fiber->fiber = NULL; + } + lua_pop(tarantool_L, ...
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#185.1 函数和类型- luaL_checktype - 《Lua 5.3 参考手册》
检查函数的第 arg 个参数的类型是否是 t 。参见 lua_type 查阅类型 t 的编码。 上一篇:luaL_checkstring. 下一篇:luaL_checkudata.
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#19在Lua中以面向对象的方式使用C++注册的类 - 博客园
使用luaL_checkudata宏替换lua_touserdata函数. Student** s = (Student**)luaL_checkudata(L, 1, "StudentClass");. 除了可以转换userdata之外，还 ...
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#20Lua中的userdata
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. void lua_pushlightuserdata(lua_State *L, void *p);.
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#21The Battle for Wesnoth: lua/lauxlib.cpp File Reference - Huihoo
Referenced by lua_rng::impl_rng_destroy(), impl_unit_attacks_get(), lua_cpp::intf_cleanup(), io_type(), luaL_checkudata(), luaW_checkvariable(), ...
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#22C++ GeometryNode::get_material方法代碼示例- 純淨天空
int gr_node_set_refractionIndex_cmd(lua_State* L) { GRLUA_DEBUG_CALL; gr_node_ud* selfdata = (gr_node_ud*)luaL_checkudata(L, 1, "gr.node"); luaL_argcheck(L, ...
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#23从C 查询Lua 用户数据类型Query Lua userdata type from C
是否有一个很好的方便的函数（比如 luaL_checkudata ，但如果答案不是您想要的，则不会 luaL_checkudata ）让我查询用户数据的元表类型名称？
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#24给自定义用户数据一个tostring方法 - 955Yes
#define check_point(L) \ (Point**)luaL_checkudata(L,1,"Point") static int luaw_point_getx(lua_State* L) { Point** point_ud = check_point(L); ...
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#25lua/datawrapper.cpp - André Offringa / AOFlagger - GitLab
... L) { aoflagger_lua::Data* data = reinterpret_cast<aoflagger_lua::Data*>( luaL_checkudata(L, 1, "AOFlaggerData")); data->TFData().
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#26"Fossies" - the Fresh Open Source Software Archive
Buffer"); 49 Direction* dir = (Direction *)luaL_checkudata(L, 2, "harfbuzz.Direction"); 50 51 hb_buffer_set_direction(*b, *dir); 52 return 0; ...
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#27Lua 5.1.4: lauxlib.c references
luaL_checkudata. name in lauxlib.h; gctm in loadlib.c ... luaL_typerror. name in lauxlib.h; luaL_checkudata in lauxlib.c; tag_error in lauxlib.c ...
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#28Lua userdata详解 - Firetik Q&A
... 新的userdata已经在栈上了} static int GetName(lua_State *L) { struct StudentTag *pStudent = (struct StudentTag *)luaL_checkudata(L, 1, ...
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#29Lua教程（二十二）_的技术博客
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#30проверка наследования luaL_checkudata - CodeRoad
проверка наследования luaL_checkudata. У меня есть следующий сценарий: Один класс называется "Base", а второй класс называется "Derived", который происходит ...
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#31Lua教程（二十二）：userdata - html中文网
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#32Lua 5.2 documentation — DevDocs
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. Checks whether the function argument arg is a userdata of the type tname (see ...
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#33从C查询Lua userdata类型 - 小空笔记
是否有一个非常方便的功能（比如 luaL_checkudata ，但如果答案不是你想要的话，没有错误）让我查询用户数据的元表类型名称？
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#34luaL_checkudata different behavior from standard lua - luajit
luaL_checkudata different behavior from standard lua. From: Ivan Solis <ivansolispadilla@xxxxxxxxx>; To: luajit@xxxxxxxxxxxxx; Date: Fri, ...
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#35Lua 5.3 参考手册
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. 检查函数的第 arg 个参数是否是一个类型为 tname 的用户数据（参见 ...
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#36使用LUA userdata手动绑定C++对象_橙C大人的博客
... -2); return 1; } static int SetAge(lua_State *L) { Student **s = (Student**)luaL_checkudata(L, 1, "Meta_Student"); luaL_argcheck(L, s !=
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#37lua_config.c - Apple Open Source
... int index) { ap_lua_dir_cfg *cfg; luaL_checkudata(L, index, "Apache2.DirConfig"); cfg = (ap_lua_dir_cfg *) lua_unboxpointer(L, index); return cfg; } ...
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#38Lua missing definitions (compiled from source) - C Board
C:(.text+0x8a): undefined reference to `luaL_checkudata(lua_State*, int, char const*)' o:/common/mingw/bin/.
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#39使用LUA userdata手动绑定C++对象_橙C大人的博客 - 程序员 ...
... -2); return 1; } static int SetAge(lua_State *L) { Student **s = (Student**)luaL_checkudata(L, 1, "Meta_Student"); luaL_argcheck(L, s !=
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#40Storing and Returning Lua Userdata - Tutorial Guruji
int A::setB(lua_State* L) { A* a = checkA(L,1) // Macro for luaL_checkudata B* b = checkB(L,2) // again similar macro a->SetB(b); return 0; ...
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#41lua程序设计（第四版）练习答案自做（第三十一章 ...
... int)(i)/BITS_PER_WORD) #define I_BIT(i) (1<<((unsigned int)(i)%BITS_PER_WORD)) #define checkarray(L) (BitArray *)luaL_checkudata(L,1,"LuaBook.array"); ...
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#42Lua教程（二十二）：userdata_lua userdata遍历 - 凌辰网
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#43Lua中的userdata - 代码交流
创建, // 没有进行参数合法性检查void *lua_newuserdata(lua_State *L, size_t size); // 有参数合法性检查void *luaL_checkudata (lua_State *L, int arg, ...
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#44libubus-lua
0) { cnt++; lua_pop(L, 1); } return cnt; } static int ubus_lua_reply(lua_State *L) { struct ubus_lua_connection *c = luaL_checkudata(L, 1, METANAME); struct ...
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#45cluautil.h File Reference
#define, LINES(ls, n, var) map_lines &var = (*(map_def **) luaL_checkudata(ls, n, MAP_METATABLE))->map. #define, DEVENT(ls, n, var) dgn_event *var ...
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#46Question Query Lua userdata type from C - TitanWolf
Is there a nice handy function (rather like luaL_checkudata , but without erroring if the answer isn't what you want) that let's me query the metatable type ...
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#47你能从lua 修改C 结构吗？ - 程序员与数组
... int MyStruct_index(lua_State *L) { struct MyStruct *t = (struct MyStruct *)luaL_checkudata(L, 1, "MyStruct"); const char *k = luaL_checkstring(L, ...
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#49Язык Lua - Начало
... 1)); return 0; } // Адаптеры методов класса для Lua static int myobject_set(lua_State* L){ (*reinterpret_cast<MyObject**>(luaL_checkudata(L, 1, ...
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#5028.2 Metatables - Lua程序设计
void *luaL_checkudata (lua_State *L, int index,. const char *tname);. luaL_newmetatable函数创建一个新表（将用作metatable），将新表放到栈顶并建立表和registry ...
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#51Lua Custom Userdata (Binding to C ++ Object) - Programmer ...
static int __gc(lua_State* L) { void **s = (void**) luaL_checkudata(L, 1, HTTP__META_NAREQUESTME); if (*s == NULL) return NULL; luaL_argcheck(L, s !=
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#52c++ - 存储和返回Lua用户数据 - 咻咻摸鱼热榜
int A::setB(lua_State* L) { A* a = checkA(L,1) // Macro for luaL_checkudata B* b = checkB(L,2) // again similar macro a->SetB(b); return 0; ...
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#53lua c api - 大专栏
static NumArray checkarray(lua_State L) { void ud = luaL_checkudata(L, 1, "LuaBook.array"); luaL_argcheck(L, ud != NULL, 1, "`array' expected"); return ...
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#545.1 函数和类型- 《Lua 5.3 参考手册》 - 技术池(jishuchi.com)
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. 检查函数的第 arg 个参数是否是一个类型为 tname 的用户数据（参见 ...
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#55lua程序设计（第四版）练习答案自做（第三十一章）
... int)(i)/BITS_PER_WORD) #define I_BIT(i) (1<<((unsigned int)(i)%BITS_PER_WORD)) #define checkarray(L) (BitArray *)luaL_checkudata(L,1,"LuaBook.array"); ...
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#56Luaのノウハウその3 - luaL_checkudataとその仲間たち
luaL_checkudata,luaL_newmetatable,luaL_getmetatableについて。 これらの関数は、Cのデータ型へのLuaバインディングを書く時に使われる。
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#57luaL_testudata-Lua 5.3 参考手册 - 面试哥
luaL_testudata[-0,+0,e]void*luaL_testudata(lua_State*L,intarg,constchar*tname);此函数和luaL_checkudata类似。但它在测试失败时会.
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#58src/lj_api.c - luajit-2.0-src
... luaL_callmeta; luaL_checkany; luaL_checkinteger; luaL_checklstring; luaL_checknumber; luaL_checkoption; luaL_checkstack; luaL_checktype; luaL_checkudata ...
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#59[OpenWrt-Devel] [PATCH] Add events support to ubus-lua ...
... + static int ubus_lua_add(lua_State *L) { struct ubus_lua_connection *c = luaL_checkudata(L, 1, METANAME); @@ -572,6 +579,95 ...
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#60lua_py.c · Kay桑/lua_xlib - Gitee.com
py_object *o = (py_object *)luaL_checkudata(L, 1, PYTHON_OBJECT);. luaL_argcheck(L, PyCallable_Check(o->obj), 1, "Not callable python object");.
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#61Copyright 2014 The Luvit Authors. All Rights Reserved ...
... path); return 2; } return 1; } static int lmz_reader_gc(lua_State *L) { lmz_file_t* zip = luaL_checkudata(L, 1, "miniz_reader"); uv_fs_close(zip->loop, ...
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#62Lua Userdata 的元表(Metatable) - 台部落
luaL_checkudata 也不過是將 userdata 的元表和 registry 中存儲的元表進行直接比較( rawequal )。 還有一點需要注意，在 luaL_newmetatable 中，新建 ...
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#63source code - Real Time Logic
... int slowCnt; } Lua2C; static int Lua2C_fast(lua_State *L) { Lua2C* l2c = (Lua2C*)luaL_checkudata(L,1,LUA2C); l2c->fastCnt++; lua_pushinteger(L, ...
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#64C++ Lua用户数据与Mathfu浮点值混淆- 程序调试信息网
static int dotVector(lua_State *L) { mathfu::Vector<float, 4> *vecA = *static_cast<mathfu::Vector<float, 4> **>(luaL_checkudata(L, 1, VECTOR_LIB_NAME)); ...
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#65Lua教程（二十二）：userdata - 爱恩网
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#66Beware of Lua finalizers in C modules! - Josh Haberman
... BROKEN -- DON'T DO THIS! static int call(lua_State *L) { MyTypeWrapper *obj = lual_checkudata(L, 1, MYTYPE); mytype_call(obj->val); ...
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#67auto generated bindings, don't manually edit. See README ...
... int arg) { void *data = luaL_checkudata(L, arg, "Location"); return (Location *)data; } int new_AP_HAL__UARTDriver(lua_State *L) { luaL_checkstack(L, 2, ...
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#68Lua checkudata типа C ++ – 2 Ответа - overcoder
void *luaL_testudata (lua_State *L, int arg, const char *tname);. Эта функция работает как luaL_checkudata , за исключением того, что при завершении теста она ...
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#69c++ - Lua checkudata типа C ++ - Question-It.com
void *luaL_testudata (lua_State *L, int arg, const char *tname);. Эта функция работает как luaL_checkudata , за исключением того, что когда тест не проходит, он ...
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#70Lua userdata Lua教程（二十二）：userdata_IT技术环卫软件站
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#71Userdata in Lua - Programmer All
NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; luaL_checkany(L,3); // there are 3 arguments luaL_argcheck(L,a ...
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#72Lua userdata Lua教程（二十二） - 电脑软件下载
NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的数据都可以成为布尔值，因此 ...
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#73Lua 5.4参考手册- 作者
void *luaL_checkudata (lua_State *L, int arg, const char *tname);. 检查函数参数 arg 是否为 tname 类型的userdata （请参见 luaL_newmetatable ），并返回该用户 ...
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#74native Lua: src/lauxlib.h File Reference
LUALIB_API void *(), luaL_checkudata (lua_State *L, int ud, const char *tname). LUALIB_API void(), luaL_where (lua_State *L, int lvl).
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#75socket.c - mooa - Lua + lubev + sandboxing - literati.org
... 82 83 luaL_checkudata(L, 1, "mooa_socket"); 84 sock = lua_touserdata(L, 1); 85 mooa_task_wait_for_read(L, sock->socket); 86 return lua_yieldk(L, 0, 0, ...
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#76lua_serial.c | searchcode
... 102 serial_parity_t parity; 103 int stopbits; 104 bool xonxoff; 105 bool rtscts; 106 int ret; 107 108 serial = luaL_checkudata(L, 1, "periphery.
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#77读书笔记第四部分之用C为Lua定义类型(UserData) - 豆瓣
... const char *tname); void luaL_getmetatable(lua_State *L,const char *tnaem); void *luaL_checkudata(lua_State*L,int index,const char ...
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#78Lua和Python：实现一个高效的List对象(3) - 知乎专栏
取list指针#define checklist(L) (list_t*)luaL_checkudata(L, 1, LIST_MT) // ls[idx] static int list_index(lua_State *L) { list_t *ls ...
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#79Lua和C的交互说明(函数) - 百度文库
luaL_checkudata void *luaL_checkudata (lua_State *L, int narg, const char *tname);Checks whether the function argument narg is a userdata of ...
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#80plotjuggler: lauxlib.h Source File - ROS Documentation
72 LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);. 73. 74 LUALIB_API void (luaL_where) (lua_State *L, int lvl);.
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#81Programming in Lua – User-defined types - DCC/UFRJ
Finally, we change the other functions to use luaL_checkudata instead of lua_touserdata: int luaopen_bv(lua_State *L) {. luaL_newmetatable(L, "bv.mt");.
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#82GC竞争问题 - 重归混沌的BLOG
n = (struct node *)luaL_checkudata(L, 1, "nodepool");. sz = lua_rawlen(L, 1);. assert(sz % sizeof(struct node) == 0);. sz /= sizeof(struct node);.
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#84Lua 5.3 API Manual - Hubwiz.com
... debug.upvaluejoin · luaL_buffinit · setmetatable · LUA_OPLE · LUA_MASKRET · luaL_newlibtable · luaL_newmetatable · lua_arith · luaL_checkudata ...
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#85Sources/ubus/lua/ubus.c - OpenWrt.org Cross Reference
... 288 struct ubus_lua_connection *c = luaL_checkudata(L, 1, METANAME); 289 290 lua_newtable(L); 291 rv = ubus_lookup(c->ctx, NULL, ubus_lua_objects_cb, ...
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#86C++ のネイティブデータ型を Lua へ提供し、操作する例 - Qiita
... static const luaL_Reg obj_definitions[] = { { "method_test" , []( auto L ) { std::cout << "obj.method_test : " << luaL_checkudata(L, 1, ...
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#87Lua Userdata 的元表(Metatable) - IT閱讀
luaL_checkudata 也不過是將 userdata 的元表和 registry 中儲存的元表進行直接比較( rawequal )。 還有一點需要注意，在 luaL_newmetatable 中，新建 ...
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#88C++对象绑定到lua - 光线反射算法
... -2); return 1; } static int SetAge(lua_State *L) { Student **s = (Student**)luaL_checkudata(L, 1, "Meta_Student"); luaL_argcheck(L, s !=
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#89Lua 与C 交互(1) - 极客分享
void *luaL_checkudata (lua_State *L, int narg, const char *tname);. Checks whether the function argument narg narg is a userdata of the type
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#90Lua教程（二十二）：userdata - 脚本之家
//否则该函数报错并终止程序。 NumArray* a = (NumArray*)luaL_checkudata(L,1,"myarray"); int index = luaL_checkint(L,2) - 1; //2. 由于任何类型的 ...
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#91用ruby语言编写一个将c++对象方法导入到lua脚本中的解析器
Data"); return 1; } static int lua____dat_ns___Data__id(lua_State *lua_state) { uint32 *udata_self = (uint32*)luaL_checkudata(lua_state, 1, ...
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#92lua userdata - ShawSpring-程序变量
... metatablename); return 1; } static int setName(lua_State *L) { studentTag *pStudent = (studentTag *)luaL_checkudata(L, 1, ...
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#93Beginning Lua Programming - 第 433 頁 - Google 圖書結果
The userdata returned by luaL_checkudata is a pointer to a stream pointer. If the stream pointer is NULL, the file has been closed and an error with an ...
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#94Lua 之userdata - 术之多
NumArray* a = (NumArray*)luaL_checkudata(L,,"myarray");; int index = luaL_checkint(L,) - ;; luaL_checkany(L,); // there are 3 arguments
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#95Lua: Avoiding premature exitulation by errorJmp'ing
if (luaL_checkudata(L, lua_gettop(L), T::className)) return;. So, if it succeeds and finds the userdata, return immediately. Else, go ahead ...
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#96Share Array between lua and C - STACKOOM
... "lauxlib.h" // metatable method for handling "array[index]" static int array_index (lua_State* L) { int** parray = luaL_checkudata(L, 1, ...
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#97Roblox getfenv virus
This way your methods become: int A::setB (lua_State* L) { A* a = checkA (L,1) // Macro for luaL_checkudata B* b = checkB (L,2) ...
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