luaL_checkudata

luaL_checkudata[-0, +0, v]

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 luaL_newmetatable) and returns the userdata address (see lua_touserdata).

Links:

https://www.lua.org/manual/5.3/manual.html#luaL_checkudata

doc_lua

2017-02-21 04:12:06

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