libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/value_size.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 valarray;
  12
  13 // valarray(const value_type& x, size_t n);
  14
  15 #include <valarray>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**)
  21 {
  22     {
  23         std::valarray<int> v(5, 100);
  24         assert(v.size() == 100);
  25         for (int i = 0; i < 100; ++i)
  26             assert(v[i] == 5);
  27     }
  28     {
  29         std::valarray<double> v(2.5, 100);
  30         assert(v.size() == 100);
  31         for (int i = 0; i < 100; ++i)
  32             assert(v[i] == 2.5);
  33     }
  34     {
  35         std::valarray<std::valarray<double> > v(std::valarray<double>(10), 100);
  36         assert(v.size() == 100);
  37         for (int i = 0; i < 100; ++i)
  38             assert(v[i].size() == 10);
  39     }
  40
  41   return 0;
  42 }