#define SOL_ALL_SAFETIES_ON 1 #include #include "assert.hpp" #include struct something { int arr[4]; something() : arr{ 5, 6, 7, 8 } {} }; int main() { std::cout << "=== c arrays (works with Visual C++ too) ===" << std::endl; sol::state lua; lua.open_libraries(sol::lib::base); lua.new_usertype("something", "arr", sol::property([](something& s) { return std::ref(s.arr); }) ); lua.script(R"(s = something.new() print(s.arr[3]) s.arr[3] = 40 print(s.arr[3]) )"); something& s = lua["s"]; c_assert(s.arr[0] == 5); c_assert(s.arr[1] == 6); c_assert(s.arr[2] == 40); c_assert(s.arr[3] == 8); std::string string_array[] = { "first string", "second string", "third string", }; lua["str_arr"] = std::ref(string_array); // or: // lua["str_array"] = &string_array; lua.script(R"( print(str_arr[3]) str_arr[3] = str_arr[3] .. ': modified' print(str_arr[3]) )"); c_assert(string_array[2] == "third string: modified"); return 0; }