text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <valarray>
  
  // template<class T> class valarray;
  
  // template<class T> valarray<T> operator&(const T& x, const valarray<T>& y);
  
  #include <valarray>
  #include <cassert>
  #include <cstddef>
  
  int main()
  {
      {
          typedef int T;
          T a1[] = { 1,   2,  3,  4,  5};
          T a2[] = { 1,   2,  3,  0,  1};
          const unsigned N = sizeof(a1)/sizeof(a1[0]);
          std::valarray<T> v1(a1, N);
          std::valarray<T> v2 = 3 & v1;
          assert(v1.size() == v2.size());
          for (std::size_t i = 0; i < v2.size(); ++i)
              assert(v2[i] == a2[i]);
      }
  }
  