Can't read byte-array parameters from parameter dump file

  https://github.com/ros2/rclcpp/issues/2442

Signed-off-by: Tomoya Fujita <Tomoya.Fujita@sony.com>

prover_rclcpp/CMakeLists.txt

@@ -154,6 +154,7 @@ custom_executable(rclcpp_2226)
 custom_executable(rclcpp_2379)
 custom_executable(rclcpp_2417_pub)
 custom_executable(rclcpp_2417_sub)
+custom_executable(rclcpp_2442)
 custom_executable(rclcpp_2497)
 custom_executable(rclcpp_2507)
 custom_executable(rclcpp_2645)

prover_rclcpp/src/rclcpp_2442.cpp

@@ -0,0 +1,26 @@
+#include <cstdio>
+
+#include "rclcpp/rclcpp.hpp"
+
+static constexpr const uint8_t EXAMPLE_ARR[8]{ 0x00, 0x13, 0xA2, 0x00, 0x41, 0x5C, 0x61, 0x86 };
+
+int main(int argc, char ** argv)
+{
+  rclcpp::init(argc, argv);
+
+  auto node = rclcpp::Node::make_shared("my_node");
+  auto param_desc = rcl_interfaces::msg::ParameterDescriptor{};
+
+  param_desc.description = "XBee Due address";
+  auto dueAddrParm = node->declare_parameter(
+      "byte_arr_param",
+      std::vector<uint8_t>(EXAMPLE_ARR,
+                           EXAMPLE_ARR + sizeof(EXAMPLE_ARR) / sizeof(EXAMPLE_ARR[0])),
+      param_desc);
+  auto p = node->get_parameter("byte_arr_param");
+  RCLCPP_INFO_STREAM(node->get_logger(), p.get_name() << ":=" << p.value_to_string() << " (initial)");
+
+  rclcpp::spin(node);
+  rclcpp::shutdown();
+  return 0;
+}