These tests were marked as failing because the libc implementation does not
use the proper return type on certain math functions. There is other weirdness
that prevents us from defining our own version of these functions.
The failing tests in cmake were separated into their own files so that the rest
failures in the rest of the cmath tests were not hidden.
This was not done for the math.h test since we don't actually supply math.h
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@215275 91177308-0d34-0410-b5e6-96231b3b80d8
Linux has a lot of failures caused by not having support for certain
locales. Since these come out as a lot of noise in the test results,
have lit.cfg detect the presence of the various locales used in the
tests and add them to config.available_features as locale.LOCALE_NAME.
This patch also adds REQUIRES: locale.REQUIRED_LOCALE to every test that
I saw failing in this manner. We probably need to add more for all the
tests requiring en_US.UTF-8, but we can do that on an as-needed basis.
One thing that concerns me is how many tests get skipped because of
missing locales (especially in regex/). We should make a point of
splitting up any tests that test default behavior _and_ behavior under a
given locale so that we aren't losing coverage for default behavior.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@214753 91177308-0d34-0410-b5e6-96231b3b80d8
__get_classname() and __bracket_expression were assuming that
char_class_type was ctype_base::mask rather than using
regex_traits<_CharT>::char_class_type.
This change allows char_class_type to be defined to something other than
ctype_base::mask so that the implementation will still work for
platforms with an 8-bit ctype mask (such as Android and OpenBSD).
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@214201 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: The polymorphic allocator implementation would greatly benefit by defining virtual functions in the dynlib instead of inline. In order to do that some types are going to have to be available outside of c++1y. This is the first step.
Reviewers: mclow.lists, EricWF
Reviewed By: EricWF
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D4554
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@213889 91177308-0d34-0410-b5e6-96231b3b80d8
std::make_heap is currently implemented by iteratively applying a
siftup-type algorithm. Since sift-up is O(ln n), this gives
std::make_heap a worst case time complexity of O(n ln n).
The C++ standard mandates that std::make_heap make no more than O(3n)
comparisons, this makes our std::make_heap out of spec.
Fix this by introducing an implementation of __sift_down and switch
std::make_heap to create the heap using it.
This gives std::make_heap linear time complexity in the worst case.
This fixes PR20161.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@213615 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This patch adds the `<experimental/utility>` header as specified in the latest draft of the library fundamentals TS.
`<experimental/utility>` only contains `class erased_type`.
This patch also updates the documentation to list the `erased_type` class as "initial implementation complete".
Test Plan:
Three test cases where added:
1. Test that `_LIBCPP_VERSION` is defined.
2. Test that `<utility>` has been included.
3. Test that `erased_type` is in the correct namespace and is constexpr default constructible.
Reviewers: mclow.lists
Reviewed By: mclow.lists
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D4510
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@213226 91177308-0d34-0410-b5e6-96231b3b80d8
Signals may result in nanosleep returning with only some of the
requested sleeping performed.
Utilize nanosleep's "time-remaining" out parameter to continue sleeping
when this occurs.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210210 91177308-0d34-0410-b5e6-96231b3b80d8
The maximum alignment on arm is 8, not 16 like on x86. Use alignof(max_align_t)
to make the test work in both cases.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210195 91177308-0d34-0410-b5e6-96231b3b80d8
Make sure we appropriately retry calls to read if the return result is
less than what we asked for.
Additionally, check and handle IO errors: EINTR results in the read
operation getting restarted; other errors turn into exceptions.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210061 91177308-0d34-0410-b5e6-96231b3b80d8
random_device::random_device(const string&) wrongly assumes that open
can only validly return a file descriptor greater than zero.
This results in random_device believing that it didn't successfully open
the device causing it to throw in it's constructor, this ends up leaking
a file descriptor.
The fix is simple, don't error on file descriptors which are zero.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210060 91177308-0d34-0410-b5e6-96231b3b80d8
Other tests in this directory use this type, so it's probably copypasta from
there.
(test_buf only forwards to the superclass in all tests where it's used though,
so I wonder if it can be replaced with just using filebuf / wfilebuf
everywhere?)
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210019 91177308-0d34-0410-b5e6-96231b3b80d8
The XFAILs in r208840 were too general. They were meant to only apply
to testing when use_system_lib was set.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@209972 91177308-0d34-0410-b5e6-96231b3b80d8
[syserr.errcat.objects]p4 specifies that
system_category().default_error_condition(ev) map to
error_condition(posv, generic_category()) if ev could map to a POSIX
errno.
Linux reserves up to and including 4095 for errno values, use this as a
bound.
This fixes syserr.errcat.objects/system_category.pass.cpp on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@209795 91177308-0d34-0410-b5e6-96231b3b80d8
