Add hello world

Author: Joan Massich

.gitignore

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+CMakeCache.txt
+CMakeFiles
+cmake_install.cmake
+**/CMakeFiles/
+**/cmake_install.cmake
+Makefile
+CMakeHelloWorld
+*.a
+**/*.a
+build/**

CMakeLists.txt

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+cmake_minimum_required (VERSION 2.8)
+project (CMakeHelloWorld)
+
+#version number
+set (CMakeHelloWorld_VERSION_MAJOR 1)
+set (CMakeHelloWorld_VERSION_MINOR 0)
+
+#include the subdirectory containing our libs
+add_subdirectory (Hello)
+include_directories(Hello)
+#indicate the entry point for the executable
+add_executable (CMakeHelloWorld Hello HelloWorld.cpp)
+
+# Indicate which libraries to include during the link process.
+target_link_libraries (CMakeHelloWorld Hello)
+
+install (TARGETS CMakeHelloWorld DESTINATION bin)

Hello/CMakeLists.txt

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+add_library (Hello 
+  Speaker.h
+  Speaker.cpp)
+
+install (TARGETS Hello DESTINATION bin)
+install (FILES Speaker.h DESTINATION include)

Hello/Speaker.cpp

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+#include "Speaker.h"
+
+using namespace Hello;
+using namespace std;
+
+namespace Hello {
+  void Speaker::sayHello() {
+    cout << "Hello, world!\n";
+  }
+}

Hello/Speaker.h

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+#include <stdio.h>
+#include <iostream>
+
+namespace Hello {
+
+  class Speaker {
+    
+    public:
+      void sayHello();
+  };
+}

HelloWorld.cpp

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+#include <Speaker.h>
+
+using namespace std;
+using namespace Hello;
+
+int main(int argc, char *argv[]) {
+  Speaker* speaker = new Speaker();
+
+  speaker->sayHello();  
+}