You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.0 KiB
76 lines
2.0 KiB
4 months ago
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// 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 <type_traits>
|
||
|
|
#include <cstdlib>
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
#include "test_macros.h"
|
||
|
|
|
||
|
|
#if defined(TEST_COMPILER_CLANG)
|
||
|
|
#pragma clang diagnostic ignored "-Wtautological-compare"
|
||
|
|
#elif defined(TEST_COMPILER_C1XX)
|
||
|
|
#pragma warning(disable: 6294) // Ill-defined for-loop: initial condition does not satisfy test. Loop body not executed.
|
||
|
|
#endif
|
||
|
|
|
||
|
|
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>();
|
||
|
|
const bool greater_than_0 = std::integral_constant<bool, (N > 0)>::value; // avoid compiler warnings
|
||
|
|
if (greater_than_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>();
|
||
|
|
}
|