From c1b344b73210dac8b06bd5b8b963ae47d33f7298 Mon Sep 17 00:00:00 2001
From: Martin Anderseck <martin.anderseck@ni.com>
Date: Wed, 29 Jul 2026 12:39:37 +0200
Subject: [PATCH] extension: Fix set_*x_antenna() and update C++

This fixes the segfault when calling into set_*x_antenna() within the
example extension and updates the C++ version to UHD default (20 at the
moment) to be able to build again.
The segfault was caused by the extension example never initializing the
pointers to _*x_antenna. It still doesn't do that but refers to the
radio's setter and getter methods now.
---
 .../examples/extension_example/CMakeLists.txt |  2 +-
 .../lib/extension_example.hpp                 | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/host/examples/extension_example/CMakeLists.txt b/host/examples/extension_example/CMakeLists.txt
index ac646d102..47f13cde4 100644
--- a/host/examples/extension_example/CMakeLists.txt
+++ b/host/examples/extension_example/CMakeLists.txt
@@ -9,7 +9,7 @@ cmake_minimum_required(VERSION 3.12)
 project(EXTENSION_EXAMPLE CXX)
 
 ### Configure Compiler ########################################################
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 20)
 
 if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
     set(CMAKE_EXE_LINKER_FLAGS "-lthr ${CMAKE_EXE_LINKER_FLAGS}")
diff --git a/host/examples/extension_example/lib/extension_example.hpp b/host/examples/extension_example/lib/extension_example.hpp
index bc387e68f..19e2c62ad 100644
--- a/host/examples/extension_example/lib/extension_example.hpp
+++ b/host/examples/extension_example/lib/extension_example.hpp
@@ -333,6 +333,37 @@ public:
         return "Example_Extension";
     }
 
+    void set_rx_antenna(const std::string& ant, const size_t chan) override
+    {
+        _radio->set_rx_antenna(ant, chan);
+    }
+
+    void set_tx_antenna(const std::string& ant, const size_t chan) override
+    {
+        _radio->set_tx_antenna(ant, chan);
+    }
+
+    std::string get_rx_antenna(const size_t chan) const override
+    {
+        return _radio->get_rx_antenna(chan);
+    }
+
+    std::string get_tx_antenna(const size_t chan) const override
+    {
+        return _radio->get_tx_antenna(chan);
+    }
+
+
+    std::vector<std::string> get_rx_antennas(const size_t chan) const override
+    {
+        return _radio->get_rx_antennas(chan);
+    }
+
+    std::vector<std::string> get_tx_antennas(const size_t chan) const override
+    {
+        return _radio->get_tx_antennas(chan);
+    }
+
 private:
     uhd::rfnoc::radio_control::sptr _radio;