summaryrefslogtreecommitdiff
path: root/apps/examples/helloxx/helloxx_main.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'apps/examples/helloxx/helloxx_main.cxx')
-rw-r--r--apps/examples/helloxx/helloxx_main.cxx165
1 files changed, 165 insertions, 0 deletions
diff --git a/apps/examples/helloxx/helloxx_main.cxx b/apps/examples/helloxx/helloxx_main.cxx
new file mode 100644
index 000000000..60fd0487b
--- /dev/null
+++ b/apps/examples/helloxx/helloxx_main.cxx
@@ -0,0 +1,165 @@
+//***************************************************************************
+// examples/helloxx/helloxx_main.cxx
+//
+// Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
+// Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in
+// the documentation and/or other materials provided with the
+// distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+// used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <nuttx/config.h>
+
+#include <cstdio>
+#include <debug.h>
+
+#include <nuttx/init.h>
+#include <nuttx/arch.h>
+
+//***************************************************************************
+// Definitions
+//***************************************************************************
+// Debug ********************************************************************
+// Non-standard debug that may be enabled just for testing the constructors
+
+#ifndef CONFIG_DEBUG
+# undef CONFIG_DEBUG_CXX
+#endif
+
+#ifdef CONFIG_DEBUG_CXX
+# define cxxdbg dbg
+# define cxxlldbg lldbg
+# ifdef CONFIG_DEBUG_VERBOSE
+# define cxxvdbg vdbg
+# define cxxllvdbg llvdbg
+# else
+# define cxxvdbg(x...)
+# define cxxllvdbg(x...)
+# endif
+#else
+# define cxxdbg(x...)
+# define cxxlldbg(x...)
+# define cxxvdbg(x...)
+# define cxxllvdbg(x...)
+#endif
+
+//***************************************************************************
+// Private Classes
+//***************************************************************************
+
+class CHelloWorld
+{
+ public:
+ CHelloWorld(void) : mSecret(42)
+ {
+ cxxdbg("Constructor: mSecret=%d\n", mSecret);
+ }
+
+ ~CHelloWorld(void)
+ {
+ cxxdbg("Destructor\n");
+ }
+
+ bool HelloWorld(void)
+ {
+ cxxdbg("HelloWorld: mSecret=%d\n", mSecret);
+
+ if (mSecret != 42)
+ {
+ printf("CHelloWorld::HelloWorld: CONSTRUCTION FAILED!\n");
+ return false;
+ }
+ else
+ {
+ printf("CHelloWorld::HelloWorld: Hello, World!!\n");
+ return true;
+ }
+ }
+
+ private:
+ int mSecret;
+};
+
+//***************************************************************************
+// Private Data
+//***************************************************************************
+
+// Define a statically constructed CHellowWorld instance if C++ static
+// initializers are supported by the platform
+
+#ifdef CONFIG_HAVE_CXXINITIALIZE
+static CHelloWorld g_HelloWorld;
+#endif
+
+//***************************************************************************
+// Public Functions
+//***************************************************************************
+
+/****************************************************************************
+ * Name: helloxx_main
+ ****************************************************************************/
+
+int helloxx_main(int argc, char *argv[])
+{
+ // If C++ initialization for static constructors is supported, then do
+ // that first
+
+#ifdef CONFIG_HAVE_CXXINITIALIZE
+ up_cxxinitialize();
+#endif
+
+ // Exercise an explictly instantiated C++ object
+
+ CHelloWorld *pHelloWorld = new CHelloWorld;
+ printf("helloxx_main: Saying hello from the dynamically constructed instance\n");
+ pHelloWorld->HelloWorld();
+
+ // Exercise an C++ object instantiated on the stack
+
+#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTACKCONST
+ CHelloWorld HelloWorld;
+
+ printf("helloxx_main: Saying hello from the instance constructed on the stack\n");
+ HelloWorld.HelloWorld();
+#endif
+
+ // Exercise an statically constructed C++ object
+
+#ifdef CONFIG_HAVE_CXXINITIALIZE
+ printf("helloxx_main: Saying hello from the statically constructed instance\n");
+ g_HelloWorld.HelloWorld();
+#endif
+
+ delete pHelloWorld;
+ return 0;
+}
+