X>(int, std::string, double) result = (33, "string", .14);

X>auto func() -> (int, std::string, double) {}
X>auto result = func();
X>int i         = result[0];
X>std::string s = result[1];
X>double d      = result[2];

я бы предпочел
[ccode]
auto (i, s, d) = make_tuple(33, "string", .14);