libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/move.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03
  10
  11 // <valarray>
  12
  13 // template<class T> class valarray;
  14
  15 // valarray(const valarray<value_type>& v);
  16
  17 #include <valarray>
  18 #include <utility>
  19 #include <cassert>
  20 #include <cstddef>
  21
  22 #include "test_macros.h"
  23
  24 int main(int, char**)
  25 {
  26     {
  27         typedef int T;
  28         T a[] = {1, 2, 3, 4, 5};
  29         const unsigned N = sizeof(a)/sizeof(a[0]);
  30         std::valarray<T> v(a, N);
  31         std::valarray<T> v2 = std::move(v);
  32         assert(v2.size() == N);
  33         assert(v.size() == 0);
  34         for (std::size_t i = 0; i < v2.size(); ++i)
  35             assert(v2[i] == a[i]);
  36     }
  37     {
  38         typedef double T;
  39         T a[] = {1, 2.5, 3, 4.25, 5};
  40         const unsigned N = sizeof(a)/sizeof(a[0]);
  41         std::valarray<T> v(a, N);
  42         std::valarray<T> v2 = std::move(v);
  43         assert(v2.size() == N);
  44         assert(v.size() == 0);
  45         for (std::size_t i = 0; i < v2.size(); ++i)
  46             assert(v2[i] == a[i]);
  47     }
  48     {
  49         typedef std::valarray<double> T;
  50         T a[] = {T(1), T(2), T(3), T(4), T(5)};
  51         const unsigned N = sizeof(a)/sizeof(a[0]);
  52         std::valarray<T> v(a, N);
  53         std::valarray<T> v2 = std::move(v);
  54         assert(v2.size() == N);
  55         assert(v.size() == 0);
  56         for (unsigned i = 0; i < N; ++i)
  57         {
  58             assert(v2[i].size() == a[i].size());
  59             for (std::size_t j = 0; j < v2[i].size(); ++j)
  60                 assert(v2[i][j] == a[i][j]);
  61         }
  62     }
  63
  64   return 0;
  65 }