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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// test bitset<N>& operator<<=(size_t pos);
#include <bitset>
#include <cstdlib>
#include <cassert>
#pragma clang diagnostic ignored "-Wtautological-compare"
template <std::size_t N>
std::bitset<N>
make_bitset()
{
std::bitset<N> v;
for (std::size_t i = 0; i < N; ++i)
v[i] = static_cast<bool>(std::rand() & 1);
return v;
}
template <std::size_t N>
void test_left_shift()
{
for (std::size_t s = 0; s <= N+1; ++s)
{
std::bitset<N> v1 = make_bitset<N>();
std::bitset<N> v2 = v1;
v1 <<= s;
for (std::size_t i = 0; i < N; ++i)
if (i < s)
assert(v1[i] == 0);
else
assert(v1[i] == v2[i-s]);
}
}
int main()
{
test_left_shift<0>();
test_left_shift<1>();
test_left_shift<31>();
test_left_shift<32>();
test_left_shift<33>();
test_left_shift<63>();
test_left_shift<64>();
test_left_shift<65>();
test_left_shift<1000>();
}
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