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[libcxx] [test] Fix Clang -Wpessimizing-move "moving a temporary object prevents copy elision".

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N4618 30.6.6 [futures.unique_future]/12 declares "shared_future<R> share() noexcept;".

Fixes D29139.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294158 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stephan T. Lavavej
2017-02-05 22:48:07 +00:00
parent 02af098ef7
commit 041fb56800
1 changed files with 6 additions and 6 deletions
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12
test/std/thread/futures/futures.unique_future/share.pass.cpp
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@@ -26,7 +26,7 @@ int main()
std::promise<T> p; std::promise<T> p;
std::future<T> f0 = p.get_future(); std::future<T> f0 = p.get_future();
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(f.valid()); assert(f.valid());
} }
@@ -34,7 +34,7 @@ int main()
typedef int T; typedef int T;
std::future<T> f0; std::future<T> f0;
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(!f.valid()); assert(!f.valid());
} }
@@ -43,7 +43,7 @@ int main()
std::promise<T> p; std::promise<T> p;
std::future<T> f0 = p.get_future(); std::future<T> f0 = p.get_future();
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(f.valid()); assert(f.valid());
} }
@@ -51,7 +51,7 @@ int main()
typedef int& T; typedef int& T;
std::future<T> f0; std::future<T> f0;
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(!f.valid()); assert(!f.valid());
} }
@@ -60,7 +60,7 @@ int main()
std::promise<T> p; std::promise<T> p;
std::future<T> f0 = p.get_future(); std::future<T> f0 = p.get_future();
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(f.valid()); assert(f.valid());
} }
@@ -68,7 +68,7 @@ int main()
typedef void T; typedef void T;
std::future<T> f0; std::future<T> f0;
static_assert( noexcept(f0.share()), ""); static_assert( noexcept(f0.share()), "");
std::shared_future<T> f = std::move(f0.share()); std::shared_future<T> f = f0.share();
assert(!f0.valid()); assert(!f0.valid());
assert(!f.valid()); assert(!f.valid());
} }