hidl_vec/hidl_array add value_type

Note: this only adds value_type to single dimensional hidl_array since
the multi-dimensional hidl_array only has a view returned from
operator=. Waiting for more usecases before creating a value_type there.

Bug: 130662871
Test: N/A
Change-Id: Ie693199271267c239e657e99511ea2605d062187
Merged-In: Ie693199271267c239e657e99511ea2605d062187

1 files changed, 3 insertions, 1 deletions

diff --git a/base/include/hidl/HidlSupport.h b/base/include/hidl/HidlSupport.h
index 93a6251..4c133c1 100644
--- a/base/include/hidl/HidlSupport.h
+++ b/base/include/hidl/HidlSupport.h
@@ -326,6 +326,8 @@ protected:
 
 template<typename T>
 struct hidl_vec {
+    using value_type = T;
+
     hidl_vec() {
         static_assert(hidl_vec<T>::kOffsetOfBuffer == 0, "wrong offset");
 
@@ -793,7 +795,7 @@ private:
 // An array of T's. Assumes that T::operator=(const T &) is defined.
 template<typename T, size_t SIZE1>
 struct hidl_array<T, SIZE1> {
-
+    using value_type = T;
     using std_array_type = typename details::std_array<T, SIZE1>::type;
 
     hidl_array() = default;