| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| // ... test crashes clang |
| |
| // <atomic> |
| |
| // template <class Integral> |
| // Integral |
| // atomic_fetch_add_explicit(volatile atomic<Integral>* obj, Integral op, |
| // memory_order m); |
| // template <class Integral> |
| // Integral |
| // atomic_fetch_add_explicit(atomic<Integral>* obj, Integral op, |
| // memory_order m); |
| // template <class T> |
| // T* |
| // atomic_fetch_add_explicit(volatile atomic<T*>* obj, ptrdiff_t op, |
| // memory_order m); |
| // template <class T> |
| // T* |
| // atomic_fetch_add_explicit(atomic<T*>* obj, ptrdiff_t op, memory_order m); |
| |
| #include <atomic> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "atomic_helpers.h" |
| |
| template <class T> |
| struct TestFn { |
| void operator()() const { |
| { |
| typedef std::atomic<T> A; |
| A t; |
| std::atomic_init(&t, T(1)); |
| assert(std::atomic_fetch_add_explicit(&t, T(2), |
| std::memory_order_seq_cst) == T(1)); |
| assert(t == T(3)); |
| } |
| { |
| typedef std::atomic<T> A; |
| volatile A t; |
| std::atomic_init(&t, T(1)); |
| assert(std::atomic_fetch_add_explicit(&t, T(2), |
| std::memory_order_seq_cst) == T(1)); |
| assert(t == T(3)); |
| } |
| } |
| }; |
| |
| template <class T> |
| void |
| testp() |
| { |
| { |
| typedef std::atomic<T> A; |
| typedef typename std::remove_pointer<T>::type X; |
| A t; |
| std::atomic_init(&t, T(1*sizeof(X))); |
| assert(std::atomic_fetch_add_explicit(&t, 2, |
| std::memory_order_seq_cst) == T(1*sizeof(X))); |
| assert(t == T(3*sizeof(X))); |
| } |
| { |
| typedef std::atomic<T> A; |
| typedef typename std::remove_pointer<T>::type X; |
| volatile A t; |
| std::atomic_init(&t, T(1*sizeof(X))); |
| assert(std::atomic_fetch_add_explicit(&t, 2, |
| std::memory_order_seq_cst) == T(1*sizeof(X))); |
| assert(t == T(3*sizeof(X))); |
| } |
| } |
| |
| int main() |
| { |
| TestEachIntegralType<TestFn>()(); |
| testp<int*>(); |
| testp<const int*>(); |
| } |