| //*************************************************************************** |
| // examples/helloxx/main.c |
| // |
| // Copyright (C) 2009 Gregory Nutt. All rights reserved. |
| // Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
| // |
| // 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 <nuttx/init.h> |
| #include <cstdio> |
| #include <debug.h> |
| |
| //*************************************************************************** |
| // Definitions |
| //*************************************************************************** |
| |
| //*************************************************************************** |
| // Private Classes |
| //*************************************************************************** |
| |
| class CHelloWorld |
| { |
| public: |
| CHelloWorld(void) : mSecret(42) { lldbg("Constructor\n"); }; |
| ~CHelloWorld(void) { lldbg("Destructor\n"); }; |
| |
| bool HelloWorld(void) |
| { |
| if (mSecret != 42) |
| { |
| printf("CONSTRUCTION FAILED!\n"); |
| return false; |
| } |
| else |
| { |
| printf("Hello, World!!\n"); |
| return true; |
| } |
| }; |
| |
| private: |
| int mSecret; |
| }; |
| |
| //*************************************************************************** |
| // Private Data |
| //*************************************************************************** |
| |
| #ifndef CONFIG_EXAMPLE_HELLOXX_NOSTATICCONST |
| static CHelloWorld g_HelloWorld; |
| #endif |
| |
| //*************************************************************************** |
| // Public Functions |
| //*************************************************************************** |
| |
| //*************************************************************************** |
| // user_initialize |
| //*************************************************************************** |
| |
| #ifndef CONFIG_HAVE_WEAKFUNCTIONS |
| void user_initialize(void) |
| { |
| // Stub that must be provided only if the toolchain does not support weak |
| // functions. |
| } |
| #endif |
| |
| //*************************************************************************** |
| // user_start |
| //*************************************************************************** |
| |
| int user_start(int argc, char *argv[]) |
| { |
| #ifndef CONFIG_EXAMPLE_HELLOXX_NOSTACKCONST |
| CHelloWorld HelloWorld; |
| #endif |
| CHelloWorld *pHelloWorld = new CHelloWorld; |
| |
| printf("Saying hello from the dynamically constructed instance\n"); |
| pHelloWorld->HelloWorld(); |
| |
| #ifndef CONFIG_EXAMPLE_HELLOXX_NOSTACKCONST |
| printf("Saying hello from the statically constructed instance\n"); |
| HelloWorld.HelloWorld(); |
| #endif |
| |
| #ifndef CONFIG_EXAMPLE_HELLOXX_NOSTATICCONST |
| printf("Saying hello from the statically constructed instance\n"); |
| g_HelloWorld.HelloWorld(); |
| #endif |
| |
| delete pHelloWorld; |
| return 0; |
| } |
| |