Merge "Flattenable: switch from assignment to memcpy()."
diff --git a/include/utils/Flattenable.h b/include/utils/Flattenable.h
index 882a8b2..c37ac60 100644
--- a/include/utils/Flattenable.h
+++ b/include/utils/Flattenable.h
@@ -19,10 +19,13 @@
#include <stdint.h>
+#include <string.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/Debug.h>
+#include <type_traits>
+
namespace android {
@@ -60,14 +63,18 @@
// write a POD structure
template<typename T>
static void write(void*& buffer, size_t& size, const T& value) {
- *static_cast<T*>(buffer) = value;
+ static_assert(std::is_trivially_copyable<T>::value,
+ "Cannot flatten a non-trivially-copyable type");
+ memcpy(buffer, &value, sizeof(T));
advance(buffer, size, sizeof(T));
}
// read a POD structure
template<typename T>
static void read(void const*& buffer, size_t& size, T& value) {
- value = *static_cast<T const*>(buffer);
+ static_assert(std::is_trivially_copyable<T>::value,
+ "Cannot unflatten a non-trivially-copyable type");
+ memcpy(&value, buffer, sizeof(T));
advance(buffer, size, sizeof(T));
}
};
