13 lines
193 B
C++
13 lines
193 B
C++
|
#include <boost/optional.hpp>
|
||
|
|
#include <iostream>
|
||
|
|
|
||
|
|
boost::optional<int> maybeInt()
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
boost::optional<int> maybe = maybeInt();
|
||
|
|
|
||
|
|
if(!maybe)
|
||
|
|
std::cout << "object is null\n";
|
||
|
|
}
|