libcxx/test/std/numerics/numarray/valarray.nonmembers/valarray.comparison/less_valarray_valarray.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 // template<class T>
  14 //   valarray<bool>
  15 //   operator<(const valarray<T>& x, const valarray<T>& y);
  16
  17 #include <valarray>
  18 #include <cassert>
  19 #include <cstddef>
  20
  21 #include "test_macros.h"
  22
  23 int main(int, char**)
  24 {
  25     {
  26         typedef int T;
  27         T a1[] = {1,  2,  0,  4, 10};
  28         T a2[] = {6,  7,  0,  2, 1};
  29         bool a3[] = {true,  true,  false,  false,  false};
  30         const unsigned N = 5;
  31         std::valarray<T> v1(a1, N);
  32         std::valarray<T> v2(a2, N);
  33         std::valarray<bool> v3 = v1 < v2;
  34         std::valarray<bool> v3a = +(v1 < v2);
  35         assert(v3.size() == N);
  36         assert(v3a.size() == N);
  37         for (std::size_t i = 0; i < N; ++i) {
  38             assert(v3[i] == a3[i]);
  39             assert(v3a[i] == a3[i]);
  40         }
  41     }
  42
  43   return 0;
  44 }