diff options
Diffstat (limited to 'test/std/utilities/template.bitset/bitset.members/index.pass.cpp')
-rw-r--r-- | test/std/utilities/template.bitset/bitset.members/index.pass.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/test/std/utilities/template.bitset/bitset.members/index.pass.cpp b/test/std/utilities/template.bitset/bitset.members/index.pass.cpp new file mode 100644 index 000000000000..b96aaa51ab8f --- /dev/null +++ b/test/std/utilities/template.bitset/bitset.members/index.pass.cpp @@ -0,0 +1,67 @@ +//===----------------------------------------------------------------------===// +// +// 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>::reference 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_index_const() +{ + std::bitset<N> v1 = make_bitset<N>(); + if (N > 0) + { + assert(v1[N/2] == v1.test(N/2)); + typename std::bitset<N>::reference r = v1[N/2]; + assert(r == v1.test(N/2)); + typename std::bitset<N>::reference r2 = v1[N/2]; + r = r2; + assert(r == v1.test(N/2)); + r = false; + assert(r == false); + assert(v1.test(N/2) == false); + r = true; + assert(r == true); + assert(v1.test(N/2) == true); + bool b = ~r; + assert(r == true); + assert(v1.test(N/2) == true); + assert(b == false); + r.flip(); + assert(r == false); + assert(v1.test(N/2) == false); + } +} + +int main() +{ + test_index_const<0>(); + test_index_const<1>(); + test_index_const<31>(); + test_index_const<32>(); + test_index_const<33>(); + test_index_const<63>(); + test_index_const<64>(); + test_index_const<65>(); + test_index_const<1000>(); +} |