reuse IndexSequence from googletest
diff --git a/googlemock/include/gmock/internal/gmock-internal-utils.h b/googlemock/include/gmock/internal/gmock-internal-utils.h
index ee00479..273c7c0 100644
--- a/googlemock/include/gmock/internal/gmock-internal-utils.h
+++ b/googlemock/include/gmock/internal/gmock-internal-utils.h
@@ -506,19 +506,8 @@
// reduce code size.
GTEST_API_ void IllegalDoDefault(const char* file, int line);
-// Helper types for Apply() below.
-template <size_t... Is> struct int_pack { typedef int_pack type; };
-
-template <class Pack, size_t I> struct append;
-template <size_t... Is, size_t I>
-struct append<int_pack<Is...>, I> : int_pack<Is..., I> {};
-
-template <size_t C>
-struct make_int_pack : append<typename make_int_pack<C - 1>::type, C - 1> {};
-template <> struct make_int_pack<0> : int_pack<> {};
-
template <typename F, typename Tuple, size_t... Idx>
-auto ApplyImpl(F&& f, Tuple&& args, int_pack<Idx...>) -> decltype(
+auto ApplyImpl(F&& f, Tuple&& args, IndexSequence<Idx...>) -> decltype(
std::forward<F>(f)(std::get<Idx>(std::forward<Tuple>(args))...)) {
return std::forward<F>(f)(std::get<Idx>(std::forward<Tuple>(args))...);
}
@@ -527,9 +516,9 @@
template <typename F, typename Tuple>
auto Apply(F&& f, Tuple&& args)
-> decltype(ApplyImpl(std::forward<F>(f), std::forward<Tuple>(args),
- make_int_pack<std::tuple_size<Tuple>::value>())) {
+ MakeIndexSequence<std::tuple_size<Tuple>::value>())) {
return ApplyImpl(std::forward<F>(f), std::forward<Tuple>(args),
- make_int_pack<std::tuple_size<Tuple>::value>());
+ MakeIndexSequence<std::tuple_size<Tuple>::value>());
}
// Template struct Function<F>, where F must be a function type, contains
