test_and_set.pass.cpp [plain text]
#include <atomic>
#include <cassert>
int main()
{
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set() == 0);
assert(f.test_and_set() == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_relaxed) == 0);
assert(f.test_and_set(std::memory_order_relaxed) == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_consume) == 0);
assert(f.test_and_set(std::memory_order_consume) == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_acquire) == 0);
assert(f.test_and_set(std::memory_order_acquire) == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_release) == 0);
assert(f.test_and_set(std::memory_order_release) == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_acq_rel) == 0);
assert(f.test_and_set(std::memory_order_acq_rel) == 1);
}
{
std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_seq_cst) == 0);
assert(f.test_and_set(std::memory_order_seq_cst) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set() == 0);
assert(f.test_and_set() == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_relaxed) == 0);
assert(f.test_and_set(std::memory_order_relaxed) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_consume) == 0);
assert(f.test_and_set(std::memory_order_consume) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_acquire) == 0);
assert(f.test_and_set(std::memory_order_acquire) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_release) == 0);
assert(f.test_and_set(std::memory_order_release) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_acq_rel) == 0);
assert(f.test_and_set(std::memory_order_acq_rel) == 1);
}
{
volatile std::atomic_flag f;
f.clear();
assert(f.test_and_set(std::memory_order_seq_cst) == 0);
assert(f.test_and_set(std::memory_order_seq_cst) == 1);
}
}