ceph/src/boost/libs/align/test/align_up_integral_test.cpp

   1 /*
   2 Copyright 2019 Glen Joseph Fernandes
   3 (glenjofe@gmail.com)
   4
   5 Distributed under the Boost Software License, Version 1.0.
   6 (http://www.boost.org/LICENSE_1_0.txt)
   7 */
   8 #include <boost/align/align_up.hpp>
   9 #include <boost/core/lightweight_test.hpp>
  10
  11 template<std::size_t N>
  12 struct A { };
  13
  14 template<class T, std::size_t N>
  15 void test(A<N>)
  16 {
  17     T v1 = N;
  18     BOOST_TEST(boost::alignment::align_up(v1, N) == v1);
  19     T v2 = N - 1;
  20     BOOST_TEST(boost::alignment::align_up(v2, N) == v1);
  21     T v3 = N + N;
  22     BOOST_TEST(boost::alignment::align_up(v3, N) == v3);
  23     T v4 = N + 1;
  24     BOOST_TEST(boost::alignment::align_up(v4, N) == v3);
  25 }
  26
  27 template<class T>
  28 void test(A<1>)
  29 {
  30     T v = 1;
  31     BOOST_TEST(boost::alignment::align_up(v, 1) == v);
  32 }
  33
  34 template<class T>
  35 void test()
  36 {
  37     test<T>(A<1>());
  38     test<T>(A<2>());
  39     test<T>(A<4>());
  40     test<T>(A<8>());
  41     test<T>(A<16>());
  42     test<T>(A<32>());
  43     test<T>(A<64>());
  44     test<T>(A<128>());
  45 }
  46
  47 int main()
  48 {
  49     test<int>();
  50     test<unsigned>();
  51     test<long>();
  52     test<unsigned long>();
  53     test<short>();
  54     test<unsigned short>();
  55 #if !defined(BOOST_NO_LONG_LONG)
  56     test<long long>();
  57     test<unsigned long long>();
  58 #endif
  59     test<std::size_t>();
  60     test<std::ptrdiff_t>();
  61
  62     return boost::report_errors();
  63 }