mirror of https://github.com/intel/intel-qs.git
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Copyright (C) 2015 Theoretical Physics, ETH Zurich
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// FIXME: namespace changed from openqu to qhipster
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// FIXME: most of the code is not necessary
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/// @file bitops_test.cpp
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/// Tests for bitops.hpp
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#include "bitops.hpp"
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#include <cassert>
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#include <limits>
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int main()
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{
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assert(qhipster::highestBit(1) == 0);
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assert(qhipster::highestBit(2) == 1);
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assert(qhipster::highestBit(3) == 1);
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assert(qhipster::highestBit(4) == 2);
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assert(qhipster::highestBit(std::numeric_limits<int>::max()) == 30);
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assert(qhipster::highestBit(std::numeric_limits<unsigned>::max()) == 31);
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assert(qhipster::ilog2(1) == 0);
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assert(qhipster::ilog2(2) == 1);
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assert(qhipster::ilog2(4) == 2);
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assert(!qhipster::isPowerOf2(0));
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assert(qhipster::isPowerOf2(1));
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assert(qhipster::isPowerOf2(2));
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assert(!qhipster::isPowerOf2(3));
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assert(qhipster::isPowerOf2(4));
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assert(!qhipster::isPowerOf2(std::numeric_limits<int>::max()));
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return 0;
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}
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