Tutorials

Documentation/Tutorials/Pointers/UniquePointerExample.cpp

+#include <iostream>
+#include <cstdlib>
+#include <TNL/Containers/Array.h>
+#include <TNL/Pointers/UniquePointer.h>
+
+
+using namespace TNL;
+
+using ArrayHost = Containers::Array< int, Devices::Host >;
+using ArrayCuda = Containers::Array< int, Devices::Cuda >;
+
+__global__ void checkArray( const ArrayCuda* ptr )
+{
+   printf( "Array size is: %d\n", ptr->getSize() );
+   for( int i = 0; i < ptr->getSize(); i++ )
+      printf( "a[ %d ] = %d \n", i, ( *ptr )[ i ] );
+}
+
+int main( int argc, char* argv[] )
+{
+
+   /***
+    * Make unique pointer on array on CPU and manipulate the
+    * array via the pointer.
+    */
+   Pointers::UniquePointer< ArrayHost > array_host_ptr( 10 );
+   *array_host_ptr = 1;
+   std::cout << "Array = " << *array_host_ptr << std::endl;
+
+   /***
+    * Let's do the same in CUDA
+    */
+#ifdef HAVE_CUDA
+   Pointers::UniquePointer< ArrayCuda > array_cuda_ptr( 10 );
+   array_cuda_ptr.modifyData< Devices::Host >() = 1;
+   //Pointers::synchronizeSmartPointersOnDevice< Devices::Cuda >();
+   //checkArray<<< 1, 1 >>>( &array_cuda_ptr.getData< Devices::Cuda >() );
+#endif
+   return EXIT_SUCCESS;
+}
+