test: add test for C++ applications

test/CMakeLists.txt

@@ -30,6 +30,7 @@ include(sanitizer)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_BUILD_TYPE Debug)
+set(CMAKE_CXX_STANDARD 11)
 
 if(MSVC)
   add_compile_options("/W3")
@@ -153,6 +154,8 @@ if(USE_OPENSSL)
   )
 endif()
 
+list(APPEND SRCS cplusplus.cpp)
+
 
 ##############################################################################
 #

test/cplusplus.cpp

@@ -0,0 +1,25 @@
+/**
+ * @file cplusplus.cpp Emulate C++ applications
+ *
+ * Copyright (C) 2025 Alfred E. Heggestad
+ */
+
+#include <iostream>
+#include <re_atomic.h>
+#include <re.h>
+#include "test.h"
+
+
+#define DEBUG_MODULE "cplusplus"
+#define DEBUG_LEVEL 5
+#include <re_dbg.h>
+
+
+int test_cplusplus(void)
+{
+	std::cout << "test\n";
+
+	DEBUG_NOTICE("%H\n", sys_kernel_get, nullptr);
+
+	return 0;
+}

test/test.c

@@ -279,6 +279,7 @@ static const struct test tests_integration[] = {
 	TEST(test_tmr_jiffies_usec),
 	TEST(test_turn_thread),
 	TEST(test_thread_cnd_timedwait),
+	TEST(test_cplusplus),
 };
 
 

test/test.h

@@ -388,6 +388,16 @@ int  test_integration(const char *name, bool verbose);
 int  test_sipevent_network(void);
 int  test_sip_drequestf_network(void);
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int  test_cplusplus(void);
+
+#ifdef __cplusplus
+}
+#endif
+
 /* High-level API */
 int  test_reg(const char *name, bool verbose);
 int  test_oom(const char *name, bool verbose);