2010-08-22 02:59:46 +02:00
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// test bitset<N>& flip(size_t pos);
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#include <bitset>
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#include <cstdlib>
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#include <cassert>
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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_flip_one()
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{
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std::bitset<N> v = make_bitset<N>();
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try
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{
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v.flip(50);
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bool b = v[50];
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if (50 >= v.size())
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assert(false);
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assert(v[50] == b);
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v.flip(50);
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assert(v[50] != b);
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v.flip(50);
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assert(v[50] == b);
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}
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catch (std::out_of_range&)
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{
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}
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}
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int main()
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{
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test_flip_one<0>();
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test_flip_one<1>();
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test_flip_one<31>();
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test_flip_one<32>();
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test_flip_one<33>();
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test_flip_one<63>();
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test_flip_one<64>();
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test_flip_one<65>();
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test_flip_one<1000>();
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}
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