ViennaCL - The Vienna Computing Library  1.5.2
viennacl/traits/start.hpp
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00001 #ifndef VIENNACL_TRAITS_START_HPP_
00002 #define VIENNACL_TRAITS_START_HPP_
00003 
00004 /* =========================================================================
00005    Copyright (c) 2010-2014, Institute for Microelectronics,
00006                             Institute for Analysis and Scientific Computing,
00007                             TU Wien.
00008    Portions of this software are copyright by UChicago Argonne, LLC.
00009 
00010                             -----------------
00011                   ViennaCL - The Vienna Computing Library
00012                             -----------------
00013 
00014    Project Head:    Karl Rupp                   rupp@iue.tuwien.ac.at
00015 
00016    (A list of authors and contributors can be found in the PDF manual)
00017 
00018    License:         MIT (X11), see file LICENSE in the base directory
00019 ============================================================================= */
00020 
00025 #include <string>
00026 #include <fstream>
00027 #include <sstream>
00028 #include "viennacl/forwards.h"
00029 
00030 #include "viennacl/meta/result_of.hpp"
00031 
00032 namespace viennacl
00033 {
00034   namespace traits
00035   {
00036     //
00037     // start: Mostly for vectors
00038     //
00039 
00040     // Default: Try to get the start index from the .start() member function
00041     template <typename T>
00042     typename result_of::size_type<T>::type
00043     start(T const & obj)
00044     {
00045       return obj.start();
00046     }
00047 
00048     //ViennaCL vector leads to start index 0:
00049     template <typename ScalarType, unsigned int ALIGNMENT>
00050     typename result_of::size_type<viennacl::vector<ScalarType, ALIGNMENT> >::type
00051     start(viennacl::vector<ScalarType, ALIGNMENT> const &)
00052     {
00053       return 0;
00054     }
00055 
00056 
00057     //
00058     // start1: Row start index
00059     //
00060 
00061     // Default: Try to get the start index from the .start1() member function
00062     template <typename T>
00063     typename result_of::size_type<T>::type
00064     start1(T const & obj)
00065     {
00066       return obj.start1();
00067     }
00068 
00069     //ViennaCL matrix leads to start index 0:
00070     template <typename ScalarType, typename F, unsigned int ALIGNMENT>
00071     typename result_of::size_type<viennacl::matrix<ScalarType, F, ALIGNMENT> >::type
00072     start1(viennacl::matrix<ScalarType, F, ALIGNMENT> const &)
00073     {
00074       return 0;
00075     }
00076 
00077 
00078     //
00079     // start2: Column start index
00080     //
00081     template <typename T>
00082     typename result_of::size_type<T>::type
00083     start2(T const & obj)
00084     {
00085       return obj.start2();
00086     }
00087 
00088     //ViennaCL matrix leads to start index 0:
00089     template <typename ScalarType, typename F, unsigned int ALIGNMENT>
00090     typename result_of::size_type<viennacl::matrix<ScalarType, F, ALIGNMENT> >::type
00091     start2(viennacl::matrix<ScalarType, F, ALIGNMENT> const &)
00092     {
00093       return 0;
00094     }
00095 
00096 
00097   } //namespace traits
00098 } //namespace viennacl
00099 
00100 
00101 #endif