c++ support experiment, tested ok on mk3060, esp32

include/aos/internal/log_impl.h

@@ -64,7 +64,7 @@ extern int csp_printf(const char *fmt, ...);
 #define log_print(CON, MOD, COLOR, LVL, FMT, ...) \
     do { \
         if (CON) { \
-            csp_printf("[%06d]<" LVL "> "FMT"\n", (unsigned)aos_now_ms(), ##__VA_ARGS__); \
+            csp_printf("[%06d]<" LVL "> " FMT "\n", (unsigned)aos_now_ms(), ##__VA_ARGS__); \
         } \
     } while (0)
 

sketch/cpp_class.cpp

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2014 Hamburg University of Applied Sciences (HAW)
+ * Copyright (C) 2014 Ho Chi Minh city University of Technology (HCMUT)
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     examples
+ * @{
+ *
+ * @file
+ * @brief       implementation of declared functions of object cpp_class
+ *
+ * @author      Martin Landsmann <martin.landsmann@haw-hamburg.de>
+ * @author      DangNhat Pham-Huu <51002279@hcmut.edu.vn>
+ *
+ * @}
+ */
+
+#include <cstdio>
+#include "cpp_class.h"
+
+cpp_class::cpp_class()
+{
+    printf("Instanciating Object [constructor called]\n");
+    greet();
+}
+
+cpp_class::~cpp_class()
+{
+    printf("Destroying Object [destructor called]\n");
+    printf("Im shutting down!\n");
+}
+
+void cpp_class::say_hello(void)
+{
+    printf("Hello!\n");
+}
+
+void cpp_class::say_hello(int n)
+{
+    printf("Hello![int: %d]\n", n);
+}
+
+void cpp_class::say_hello(float f)
+{
+    printf("Hello![float: %f]\n", f);
+}
+
+void cpp_class::greet(void)
+{
+    printf("Im starting!\n");
+}

sketch/cpp_class.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2014 Hamburg University of Applied Sciences (HAW)
+ * Copyright (C) 2014 Ho Chi Minh city University of Technology (HCMUT)
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup
+ * @brief
+ * @ingroup     examples
+ * @{
+ *
+ * @file
+ * @brief       simple c++ object declaration with public and private functions
+ *
+ * @author      Martin Landsmann <martin.landsmann@haw-hamburg.de>
+ * @author      DangNhat Pham-Huu <51002279@stu.hcmut.edu.vn>
+ */
+
+#ifndef CPP_CLASS_H
+#define CPP_CLASS_H
+
+class cpp_class
+{
+public:
+    /**
+     * @brief constructor
+     */
+    cpp_class();
+
+    /**
+     * @brief destructor
+     */
+    ~cpp_class();
+
+    /**
+     * @brief public function
+     */
+    void say_hello(void);
+
+    /**
+     * @brief overloaded public function with int parameter
+     */
+    void say_hello(int n);
+
+    /**
+     * @brief overloaded public function with float parameter
+     */
+    void say_hello(float f);
+private:
+    /**
+     * @brief private function
+     */
+    void greet(void);
+};
+
+void setup(void);
+void loop(void);
+
+/** @} */
+#endif /* CPP_CLASS_H */

sketch/ino.cpp

@@ -0,0 +1,9 @@
+#include "cpp_class.h"
+
+void setup() {
+    cpp_class cpp_obj;
+    cpp_obj.say_hello((float)3.141592653);
+}
+
+void loop() {
+}

sketch/sketch.cpp

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2015-2017 Alibaba Group Holding Limited
+ */
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+#include <aos/aos.h>
+#include <assert.h>
+#if defined (__cplusplus)
+}
+#endif
+#include <cstdio>
+#include "cpp_class.h"
+
+static void app_delayed_action(void *arg)
+{
+    LOG("%s:%d %s\r\n", __func__, __LINE__, aos_task_name());
+    aos_post_delayed_action(5000, app_delayed_action, NULL);
+}
+
+extern "C" int application_start(int argc, char *argv[])
+{
+    cpp_class cpp_obj;
+
+    aos_post_delayed_action(1000, app_delayed_action, NULL);
+
+    printf("hello\n");
+    cpp_obj.say_hello(42);
+    setup();
+
+    aos_loop_run();
+
+    return 0;
+}

sketch/sketch.mk

@@ -0,0 +1,26 @@
+NAME := sketch
+
+$(NAME)_SOURCES := \
+	sketch.cpp \
+	cpp_class.cpp \
+	ino.cpp
+
+GLOBAL_DEFINES += AOS_NO_WIFI
+
+$(NAME)_COMPONENTS := yloop cli
+
+#$(NAME)_CXXFLAGS := -std=c++11 -fno-rtti -fno-exceptions
+
+ifeq ($(BENCHMARKS),1)
+$(NAME)_COMPONENTS  += benchmarks
+GLOBAL_DEFINES      += CONFIG_CMD_BENCHMARKS
+endif
+
+ifneq (,${BINS})
+GLOBAL_CFLAGS += -DSYSINFO_OS_BINS
+endif
+
+CURRENT_TIME = $(shell /bin/date +%Y%m%d.%H%M)
+CONFIG_SYSINFO_APP_VERSION = APP-1.0.0-$(CURRENT_TIME)
+$(info app_version:${CONFIG_SYSINFO_APP_VERSION})
+GLOBAL_CFLAGS += -DSYSINFO_APP_VERSION=\"$(CONFIG_SYSINFO_APP_VERSION)\"