4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// test constexpr bool operator[](size_t pos) const;
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#include <bitset>
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#include <cstdlib>
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#include <cassert>
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#pragma clang diagnostic ignored "-Wtautological-compare"
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template <std::size_t N>
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std::bitset<N>
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make_bitset()
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{
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std::bitset<N> v;
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for (std::size_t i = 0; i < N; ++i)
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v[i] = static_cast<bool>(std::rand() & 1);
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return v;
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}
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template <std::size_t N>
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void test_index_const()
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{
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const std::bitset<N> v1 = make_bitset<N>();
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if (N > 0)
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{
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assert(v1[N/2] == v1.test(N/2));
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}
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}
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int main()
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{
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test_index_const<0>();
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test_index_const<1>();
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test_index_const<31>();
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test_index_const<32>();
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test_index_const<33>();
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test_index_const<63>();
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test_index_const<64>();
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test_index_const<65>();
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test_index_const<1000>();
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}
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