ceph/src/boost/libs/qvm/test/zero_vec_test.cpp

   1 // Copyright 2008-2022 Emil Dotchevski and Reverge Studios, Inc.
   2
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifdef BOOST_QVM_TEST_SINGLE_HEADER
   7 #   include BOOST_QVM_TEST_SINGLE_HEADER
   8 #else
   9 #   include <boost/qvm/vec_operations.hpp>
  10 #   include <boost/qvm/vec.hpp>
  11 #endif
  12
  13 #include "test_qvm_vector.hpp"
  14
  15 namespace
  16     {
  17     template <class T,class U>
  18     struct same_type;
  19
  20     template <class T>
  21     struct
  22     same_type<T,T>
  23         {
  24         };
  25
  26     template <class T,class U>
  27     void
  28     check_deduction( T const &, U const & )
  29         {
  30         same_type<T,typename boost::qvm::deduce_vec<U>::type>();
  31         }
  32
  33     template <int Dim>
  34     void
  35     test()
  36         {
  37         using namespace boost::qvm;
  38         test_qvm::vector<V1,Dim> v1=zero_vec<float,Dim>();
  39         for( int i=0; i!=Dim; ++i )
  40                 BOOST_TEST(!v1.a[i]);
  41         test_qvm::vector<V2,Dim> v2(42,1);
  42         set_zero(v2);
  43         for( int i=0; i!=Dim; ++i )
  44                 BOOST_TEST(!v2.a[i]);
  45         check_deduction(vec<float,Dim>(),zero_vec<float,Dim>());
  46         check_deduction(vec<int,Dim>(),zero_vec<int,Dim>());
  47         }
  48     }
  49
  50 int
  51 main()
  52     {
  53     test<2>();
  54     test<3>();
  55     test<4>();
  56     test<5>();
  57     return boost::report_errors();
  58     }