diff options
Diffstat (limited to 'libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp')
| -rw-r--r-- | libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp b/libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp index 8b5a727361a..82222dfb4de 100644 --- a/libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp +++ b/libcxx/test/utilities/template.bitset/bitset.members/count.pass.cpp @@ -1 +1,49 @@ -//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// test size_t count() const;
#include <bitset>
#include <cstdlib>
#include <cassert>
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_count()
{
const std::bitset<N> v = make_bitset<N>();
std::size_t c1 = v.count();
std::size_t c2 = 0;
for (std::size_t i = 0; i < N; ++i)
if (v[i])
++c2;
assert(c1 == c2);
}
int main()
{
test_count<0>();
test_count<1>();
test_count<31>();
test_count<32>();
test_count<33>();
test_count<63>();
test_count<64>();
test_count<65>();
test_count<1000>();
}
\ No newline at end of file +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// test size_t count() const; + +#include <bitset> +#include <cstdlib> +#include <cassert> + +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_count() +{ + const std::bitset<N> v = make_bitset<N>(); + std::size_t c1 = v.count(); + std::size_t c2 = 0; + for (std::size_t i = 0; i < N; ++i) + if (v[i]) + ++c2; + assert(c1 == c2); +} + +int main() +{ + test_count<0>(); + test_count<1>(); + test_count<31>(); + test_count<32>(); + test_count<33>(); + test_count<63>(); + test_count<64>(); + test_count<65>(); + test_count<1000>(); +} |
