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#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
int main() {
sol::state lua;
lua["bark"] = 50;
sol::optional<int> x = lua["bark"];
// x will have a value
if (x) {
std::cout << "x has no value, as expected"
<< std::endl;
}
else {
return -1;
}
lua["bark"] = sol::lua_nil;
sol::optional<int> y = lua["bark"];
// y will not have a value
if (y) {
return -1;
}
else {
std::cout << "y has no value, as expected"
<< std::endl;
}
return 0;
}
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