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luaL_testudata

luaL_testudata[-0, +0, m]

void *luaL_testudata (lua_State *L, int arg, const char *tname);

This function works like luaL_checkudata, except that, when the test fails, it returns NULL instead of raising an error.

Links:

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

doc_lua

2017-02-21 04:12:40

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