libcxx/test/std/numerics/numarray/template.indirect.array/indirect.array.assign/indirect_array.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 // <valarray>
  10
  11 // template <class T> class indirect_array
  12
  13 // const indirect_array& operator=(const indirect_array& ia) const;
  14
  15 #include <valarray>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**)
  21 {
  22     int a1[] = { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11,
  23                 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
  24                 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
  25                 36, 37, 38, 39, 40};
  26     const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
  27     int a2[] = { -0,  -1,  -2,  -3,  -4,  -5,  -6,  -7,  -8,  -9, -10, -11,
  28                 -12, -13, -14, -15, -16, -17, -18, -19, -20, -21, -22, -23,
  29                 -24, -25, -26, -27, -28, -29, -30, -31, -32, -33, -34, -35,
  30                 -36, -37};
  31     const std::size_t N2 = sizeof(a2)/sizeof(a2[0]);
  32     std::size_t s[] = { 3,  4,  5,  7,  8,  9, 11, 12, 13, 15, 16, 17,
  33                        22, 23, 24, 26, 27, 28, 30, 31, 32, 34, 35, 36};
  34     const std::size_t S = sizeof(s)/sizeof(s[0]);
  35     std::valarray<int> v1(a1, N1);
  36     const std::valarray<int> v2(a2, N2);
  37     std::valarray<std::size_t> ia(s, S);
  38     v1[ia] = v2[ia];
  39     assert(v1.size() == 41);
  40     assert(v1[ 0] ==  0);
  41     assert(v1[ 1] ==  1);
  42     assert(v1[ 2] ==  2);
  43     assert(v1[ 3] == -3);
  44     assert(v1[ 4] == -4);
  45     assert(v1[ 5] == -5);
  46     assert(v1[ 6] ==  6);
  47     assert(v1[ 7] == -7);
  48     assert(v1[ 8] == -8);
  49     assert(v1[ 9] == -9);
  50     assert(v1[10] == 10);
  51     assert(v1[11] == -11);
  52     assert(v1[12] == -12);
  53     assert(v1[13] == -13);
  54     assert(v1[14] == 14);
  55     assert(v1[15] == -15);
  56     assert(v1[16] == -16);
  57     assert(v1[17] == -17);
  58     assert(v1[18] == 18);
  59     assert(v1[19] == 19);
  60     assert(v1[20] == 20);
  61     assert(v1[21] == 21);
  62     assert(v1[22] == -22);
  63     assert(v1[23] == -23);
  64     assert(v1[24] == -24);
  65     assert(v1[25] == 25);
  66     assert(v1[26] == -26);
  67     assert(v1[27] == -27);
  68     assert(v1[28] == -28);
  69     assert(v1[29] == 29);
  70     assert(v1[30] == -30);
  71     assert(v1[31] == -31);
  72     assert(v1[32] == -32);
  73     assert(v1[33] == 33);
  74     assert(v1[34] == -34);
  75     assert(v1[35] == -35);
  76     assert(v1[36] == -36);
  77     assert(v1[37] == 37);
  78     assert(v1[38] == 38);
  79     assert(v1[39] == 39);
  80     assert(v1[40] == 40);
  81
  82   return 0;
  83 }