Merge ../cpp11

tuple.cc

@@ -5,9 +5,21 @@ using namespace std;
 
 
 // tuple-returning func
+auto some_func() -> tuple<int, int> {
+    return make_tuple(4, 2);
+}
 
 int main() {
-    // make a tuple, get a value from it (silly <i> syntax)
-    // swap a and b
+    auto c = make_tuple(5, 4);
+    cout << get<0>(c) << endl;
+
+    int a = 0;
+    int b = 1;
+    tie(a, b) = make_tuple(b, a);
+    cout << a << endl;
+    cout << b << endl;
     // get a,b from func ...
+    tie(a, b) = some_func();
+    cout << a << endl;
+    cout << b << endl;
 }