libcxx/test/std/utilities/template.bitset/bitset.members/right_shift.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 // test bitset<N> operator>>(size_t pos) const;
  10
  11 #include <bitset>
  12 #include <cassert>
  13 #include <cstddef>
  14 #include <vector>
  15
  16 #include "../bitset_test_cases.h"
  17 #include "test_macros.h"
  18
  19 template <std::size_t N>
  20 void test_right_shift() {
  21     std::vector<std::bitset<N> > const cases = get_test_cases<N>();
  22     for (std::size_t c = 0; c != cases.size(); ++c) {
  23         for (std::size_t s = 0; s <= N+1; ++s) {
  24             std::bitset<N> v1 = cases[c];
  25             std::bitset<N> v2 = v1;
  26             assert((v1 >>= s) == (v2 >> s));
  27         }
  28     }
  29 }
  30
  31 int main(int, char**) {
  32     test_right_shift<0>();
  33     test_right_shift<1>();
  34     test_right_shift<31>();
  35     test_right_shift<32>();
  36     test_right_shift<33>();
  37     test_right_shift<63>();
  38     test_right_shift<64>();
  39     test_right_shift<65>();
  40     test_right_shift<1000>();
  41
  42     return 0;
  43 }