33 lines
511 B
C++
33 lines
511 B
C++
|
#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;
|
||
|
|
}
|