from_address requires that the provided pointer refer to the suspended coroutine,
which doesn't have a type, or at least not one knowable by the user. Therefore
every use of `from_address` with a typed pointer is almost certainly a bug.
This behavior is a part of the TS specification, but hopefully it will be
in the future.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304172 91177308-0d34-0410-b5e6-96231b3b80d8
More tests to come. I think that from_address overload should be deleted
or ill-formed, except for the 'void*' one; The user cannot possibly
have a typed pointer to the coroutine state.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304131 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds end-to-end/breathing tests for coroutines
into libc++. The tests aren't specifically to test libc++ requirements
but instead are intented to ensure coroutines are working fine in general.
Although libc++ isn't exactly the most correct place for these tests
to live, there is one major advantage. The libc++ test suite is also
used by MSVC and by adding the tests here it ensures they will be
run against all currently available coroutine implementations.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304101 91177308-0d34-0410-b5e6-96231b3b80d8
Clang supports coroutines in all dialects; Therefore libc++ should too,
otherwise the Clang extension is unusable.
I'm not convinced extending support to C++03 is a feasible long term
plan, since as the library grows to offer things like generators it
will be come increasingly difficult to limit the implementation to C++03.
However for the time being supporting C++03 isn't a big deal.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@303963 91177308-0d34-0410-b5e6-96231b3b80d8
Clang started providing -fcoroutines and defining __cpp_coroutines
way before it implemented the __builtin_coro_foo functions. This
means that simply checking if __cpp_coroutines is not a sufficient
way of detecting the actual feature.
This patch implements _LIBCPP_HAS_NO_COROUTINES which implements
a slightly more complex feature check. Specifically it requires
__cpp_coroutines >= 201703L, which only holds for Clang 5.0 built
after 2017/05/24.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@303956 91177308-0d34-0410-b5e6-96231b3b80d8
The tests were previously guarded by #if defined(_LIBCPP_VER) || defined(_MSVC_STL_VER),
which is both incorrect (e.g. _LIBCPP_VERSION) and unneeded. Although the tests are
technically non-standard (yet) they are supported by both libc++ and MSVC's STL.
libstdc++ doesn't regularly use the test suite so I'm not concerned about guarding these
tests for them.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@303953 91177308-0d34-0410-b5e6-96231b3b80d8
The original issues were caused because <experimental/coroutine>
didn't correctly #ifdef out enough of the header, which caused incomplete
types to be used.
This patch fixes the `#if defined(__cpp_coroutines)` guard and re-adds
the headers to the module map.
It also uglifies some incorrectly non-reserved names.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@303936 91177308-0d34-0410-b5e6-96231b3b80d8
This patch updates the promise() member to match the current spec.
Specifically it removes the non-const overload and make the return
type of the const overload non-const.
This patch also makes the ASSERT_NOT_NOEXCEPT tests libc++ specific,
since other implementations may be free to strengthen the specification.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@303895 91177308-0d34-0410-b5e6-96231b3b80d8
This C++17 Core Language feature isn't necessary when testing std::byte.
It's a minor convenience, but it limits test coverage to very new compilers.
This part activates the tests for more compilers.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302945 91177308-0d34-0410-b5e6-96231b3b80d8
This C++17 Core Language feature isn't necessary when testing std::byte.
It's a minor convenience, but it limits test coverage to very new compilers.
This part changes the code.
Fixes D32386.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302944 91177308-0d34-0410-b5e6-96231b3b80d8
This patch cleans up a number of issues reported by STL, including:
1) Fix duplicate is_convertible test.
2) Move non-standard reference_wrapper tests under test/libcxx
3) Fix assumption that sizeof(wchar_t) == 32 in the codecvt and
wstring_convert tests.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302870 91177308-0d34-0410-b5e6-96231b3b80d8
This patch removes the clear() member from <string_view>. The
modifier was removed from the TS before it ever landed in the standard.
There is no reason libc++ should be providing this method.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302869 91177308-0d34-0410-b5e6-96231b3b80d8
This patch attempts to make lookup_classname.pass.cpp usable against
other STL implementations by guarding the use of __regex_word. That being
said it seems likely that the test is still non-conforming due to how
libc++ handles the "w" character class.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302859 91177308-0d34-0410-b5e6-96231b3b80d8
