diff options
Diffstat (limited to 'absl/utility')
-rw-r--r-- | absl/utility/utility.h | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/absl/utility/utility.h b/absl/utility/utility.h index aef4baa02dcd..104ec82939d6 100644 --- a/absl/utility/utility.h +++ b/absl/utility/utility.h @@ -234,25 +234,33 @@ auto apply_helper(Functor&& functor, Tuple&& t, index_sequence<Indexes...>) // // Example: // -// class Foo{void Bar(int);}; -// void user_function(int, string); -// void user_function(std::unique_ptr<Foo>); +// class Foo { +// public: +// void Bar(int); +// }; +// void user_function1(int, string); +// void user_function2(std::unique_ptr<Foo>); +// auto user_lambda = [](int, int) {}; // // int main() // { // std::tuple<int, string> tuple1(42, "bar"); -// // Invokes the user function overload on int, string. -// absl::apply(&user_function, tuple1); +// // Invokes the first user function on int, string. +// absl::apply(&user_function1, tuple1); // -// auto foo = absl::make_unique<Foo>(); -// std::tuple<Foo*, int> tuple2(foo.get(), 42); -// // Invokes the method Bar on foo with one argument 42. -// absl::apply(&Foo::Bar, foo.get(), 42); -// -// std::tuple<std::unique_ptr<Foo>> tuple3(absl::make_unique<Foo>()); +// std::tuple<std::unique_ptr<Foo>> tuple2(absl::make_unique<Foo>()); // // Invokes the user function that takes ownership of the unique // // pointer. -// absl::apply(&user_function, std::move(tuple)); +// absl::apply(&user_function2, std::move(tuple2)); +// +// auto foo = absl::make_unique<Foo>(); +// std::tuple<Foo*, int> tuple3(foo.get(), 42); +// // Invokes the method Bar on foo with one argument, 42. +// absl::apply(&Foo::Bar, tuple3); +// +// std::tuple<int, int> tuple4(8, 9); +// // Invokes a lambda. +// absl::apply(user_lambda, tuple4); // } template <typename Functor, typename Tuple> auto apply(Functor&& functor, Tuple&& t) |