diff options
Diffstat (limited to 'c,cc/shared_ptr.cc')
-rw-r--r-- | c,cc/shared_ptr.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/c,cc/shared_ptr.cc b/c,cc/shared_ptr.cc new file mode 100644 index 0000000..4fb158e --- /dev/null +++ b/c,cc/shared_ptr.cc @@ -0,0 +1,31 @@ +#include <iostream> +#include <memory> + +using namespace std; + +struct B { + B(int i) : m(i) {} + int m; +}; + +struct A { + shared_ptr<B> b; +}; + +int +main(void) +{ + shared_ptr<B> x(new B(42)); + A* a = new A; + A* c = new A; + a->b = x; + c->b = x; + cout << x.use_count() << endl; + delete a; + cout << x.use_count() << endl; + delete c; + cout << x.use_count() << endl; + + return 0; +} + |