Commit Graph

1478 Commits

Author SHA1 Message Date
Eric Fiselier aa873af53d [libcxx] expose experimental::erased_type for all standard versions.
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

llvm-svn: 213889
2014-07-24 19:17:38 +00:00
Eric Fiselier 567bb79bf2 D4451: Fix copy/move issues casude by __tuple_leafs's converting constructor
llvm-svn: 213888
2014-07-24 18:48:34 +00:00
Eric Fiselier d1854f9cb1 test commit
llvm-svn: 213887
2014-07-24 18:41:56 +00:00
Dan Albert a950658e3c Fix ctype_base::xdigit for Android.
Android's ctype implementation comes from openbsd, which for some reason
doesn't consider numbers to be hex digits.

llvm-svn: 213785
2014-07-23 19:32:03 +00:00
Marshall Clow 8116e1d1c3 Update the synopsis and comments with the results of LWG #2255. No code to back it up at the moment; just comments
llvm-svn: 213768
2014-07-23 16:58:25 +00:00
Dan Albert 4339903c94 Fix classic_locale for Android.
Android's classic_locale begins at _ctype_ + 1.

llvm-svn: 213672
2014-07-22 17:32:56 +00:00
David Majnemer 8b51260274 Fix std::make_heap's worst case time complexity
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.

llvm-svn: 213615
2014-07-22 06:07:09 +00:00
Marshall Clow f915d67c60 make the same change as in 213546 for vector<bool>
llvm-svn: 213547
2014-07-21 15:15:15 +00:00
Marshall Clow 0df880209d In response to bug #20362, change the order of operations in vector move assignment so that if the allocator move assignment throws, we aren't left with two objects pointing at the same memory. This is not a complete fix; I am unconvinced that a complete fix is possible. With this change in place, we will leak the old contents of the vector. LWG issue #2106, when adopted, will make this problem illegal. Thanks to Thomas Koeppe for the report and analysis.
llvm-svn: 213546
2014-07-21 15:11:13 +00:00
Marshall Clow 3dd8846840 Fix bug #20335 - memory leak when move-constructing a string with unequal allocator. Thanks to Thomas Koeppe for the report
llvm-svn: 213269
2014-07-17 15:32:20 +00:00
Eric Fiselier 531d8b2bc4 [libcxx] Add <experimental/utility> header for LFTS.
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

llvm-svn: 213226
2014-07-17 05:31:31 +00:00
Eric Fiselier 371aac1adb Change _LIBCXX_CONSTEXPR_AFTER_CXX11 to check for c++14 constexpr rules
llvm-svn: 213225
2014-07-17 05:16:18 +00:00
Eric Fiselier 68c89c2480 Test commit: Reverting whitespace changes
llvm-svn: 213223
2014-07-17 05:10:03 +00:00
Eric Fiselier 712ac189cc Test commit: whitespace change
llvm-svn: 213222
2014-07-17 05:06:09 +00:00
Marshall Clow f52c88f015 Correctly implement LWG 2049; std::is_destructible.
llvm-svn: 213163
2014-07-16 15:51:50 +00:00
Saleem Abdulrasool f4a391c07f Change Windows decoration on some base classes
Mark the base classes for time_get_byname and time_get as _LIBCPP_TYPE_VIS_ONLY
rather than _LIBCPP_TYPE_VIS.  These base classes are templated types and cannot
be stored with export dll storage.

Fixes compilation with _LIBCPP_DLL for Windows when the time_get and
time_get_byname classes are used.

llvm-svn: 213116
2014-07-16 01:00:26 +00:00
Marshall Clow 0030af8c35 Support the built-in type-trait support in gcc 4.7 and later. Thanks to Albert Wong for the patch.
llvm-svn: 212727
2014-07-10 15:38:20 +00:00
Marshall Clow b38f8f07c5 Add support for BIONIC C library (Android). Patch from Dan Albert
llvm-svn: 212724
2014-07-10 15:20:28 +00:00
Marshall Clow 490349d262 Fix warning in test - missing exception specifier for overload of operator new
llvm-svn: 212723
2014-07-10 15:19:50 +00:00
Marshall Clow 79d4ffbc8f Add a reset method to the counting predicates in the test suite
llvm-svn: 212651
2014-07-09 21:04:22 +00:00
Marshall Clow 926731b1e5 string_view enhancements. Move to the correct namespace. Better constexpr support (thanks to Richard for the suggestions). Update the tests to match this. Add <experimental/__config for experimental macros/etc to live.
llvm-svn: 212569
2014-07-08 22:38:11 +00:00
Marshall Clow 56cca89fc3 Fix some failing tests for the standard containers. The tests were failing in 32-bit mode because they assumed that std::size_type and make_unsigned<ptrdiff_t>::type were always the same type. No change to libc++, just the tests.
llvm-svn: 212538
2014-07-08 15:19:40 +00:00
Marshall Clow 35af19ab1f Minor cleanup for string_view; mostly from suggestions by Richard Smith. Also, make the tests pass under c++03
llvm-svn: 212185
2014-07-02 15:45:57 +00:00
Marshall Clow 38cae6330b Fix libc++ bug #20039: 'Constructing std::function from empty compatible std::function results in half-empty state' Thanks to Agustin Berge for the report, and for his and Eric Fiselier's work on a fix.
llvm-svn: 212070
2014-06-30 21:27:51 +00:00
Marshall Clow afa72ed47c Fix a typo in the noexcept calculation for __compressed_pair::swap. Thanks to EricWF for the bug report and the fix.
llvm-svn: 212046
2014-06-30 15:35:09 +00:00
Marshall Clow 3484495b3d Add checking for the complexity guarantees in the standard
llvm-svn: 212017
2014-06-30 05:04:20 +00:00
Marshall Clow 157a8f91bd Patch from Albert J. Wong to make type_traits take advantage of gcc intrinsics in 4.7 and later. No functionality change when using clang.
llvm-svn: 211755
2014-06-26 01:07:56 +00:00
David Fang ed7987dcfe eliminate install of duplicate headers (take 2)
Patch by Ryuta Suzuki

llvm-svn: 211629
2014-06-24 20:32:11 +00:00
Marshall Clow f9af6140ff Some calls to get<>() were qualified. Some were not. Qualify them all. Fixes bug #20092. Thanks to Agustín Bergé for the bug report and the fix.
llvm-svn: 211563
2014-06-24 00:46:19 +00:00
Marshall Clow 2f4bfdecb3 Formatting improvements in the <string_view> synopsis suggested by RSmith. No functionality change.
llvm-svn: 211191
2014-06-18 17:44:04 +00:00
David Fang 09b61ebcbe Revert "fixes duplicate header installation"
This reverts commit 0bd40d6c3da6719fecf77038673d453ff1eab25b.

llvm-svn: 210857
2014-06-12 23:19:55 +00:00
Marshall Clow 5aa8fa250d Implement string_view from the library fundamentals TS (n4023). Also works in C++11 and 03, with reduced functionality (mostly in the area of constexpr)
llvm-svn: 210659
2014-06-11 16:44:55 +00:00
David Fang 7070be1160 fixes duplicate header installation
http://llvm.org/bugs/show_bug.cgi?id=18681
Patch by Ryuta Suzuki <oroppas gmail com>

llvm-svn: 210577
2014-06-10 20:26:54 +00:00
Marshall Clow d0817f526c Mark assign to be constepr only in c++14; can't have constexpr fns that return void in C++11
llvm-svn: 210562
2014-06-10 18:52:57 +00:00
Marshall Clow 9b0af34d96 Make the helper routines in string really be constexpr. This required a bit of refacoring in algorithm as well. Give them better names while we're at it. All of these are internal rotines; no visible functionality change.
llvm-svn: 210561
2014-06-10 18:51:55 +00:00
Marshall Clow 98763eb520 A bunch of the char.traits tests were using unicode literals. #ifdef those bits out on c++03, since it doesn't support u"" and U "" style strings.
llvm-svn: 210560
2014-06-10 18:46:59 +00:00
David Blaikie bfd92afe01 Update Arcanist config to point to reviews.llvm.org
llvm-svn: 210558
2014-06-10 18:29:36 +00:00
Marshall Clow cd68ae3f10 Fixed damaged row in issues table; thanks to STL for the catch
llvm-svn: 210500
2014-06-09 23:27:27 +00:00
Marshall Clow 57e06dfb41 Testing infastructure: A template for char_traits where all the functions are constexpr, and a comparison predicate which counts how many times it's been called.
llvm-svn: 210381
2014-06-06 22:33:40 +00:00
Marshall Clow c369914758 Since we now have a value for __cplusplus for c++14, teach libc++ about it
llvm-svn: 210380
2014-06-06 22:31:09 +00:00
Richard Smith ff0aff3caf Use __builtin_operator_new/__builtin_operator_delete when available. This
allows allocations and deallocations to be optimized out.

llvm-svn: 210211
2014-06-04 19:54:15 +00:00
David Majnemer 58a0a70fb2 Handle partial nanosleeps in this_thread::sleep_for
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.

llvm-svn: 210210
2014-06-04 19:43:20 +00:00
Nico Weber 7babe4f074 Make meta.trans.other/aligned_storage.pass.cpp pass on arm.
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.

llvm-svn: 210195
2014-06-04 16:25:58 +00:00
Nico Weber 1d1b46cdf7 Make locales (and transitively, std::endl) work reliably with gcc.
libc++ currently relies on undefined initialization order of global
initializers when using gcc:

1. __start_std_streams in iostream.cpp calls locale:🆔:_init, which assigns
   an id to each locale::facet in an initializer

2. Every facet has a static locale::id id, whose constructor sets the facet's
   id to 0

If 2 runs after 1, it clobbers the facet's assigned consecutive id, causing
exceptions to be thrown when e.g. running code like "cout << endl".

To fix this, let _LIBCPP_CONSTEXPR evaluate to "constexpr" instead of nothing
with gcc.  locale::id's constructor is marked _LIBCPP_CONSTEXPR, which ensures
that it won't get an initializer that could potentially run after the
iostream.cpp initializer. (This remains broken when building with msvc.)

Also switch constexpr-specific code in bitset to use __SIZEOF_SIZE_T__ instead
of __SIZE_WIDTH__, because gcc doesn't define the latter.

Pair-programmed/debugged with Dana Jansens.

llvm-svn: 210188
2014-06-04 15:46:56 +00:00
Marshall Clow 425f00817c Add a note about debug mode being non-functional
llvm-svn: 210162
2014-06-04 04:49:49 +00:00
David Majnemer 2dfdfdf45c [libc++] Don't return uninitialized data from random_device::operator()
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.

llvm-svn: 210061
2014-06-03 02:40:39 +00:00
David Majnemer 1e9592a9c7 [libc++] random_device fails if open returns zero
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.

llvm-svn: 210060
2014-06-03 02:21:37 +00:00
Marshall Clow f39d914d33 First cut at a post c++14 status page
llvm-svn: 210056
2014-06-02 23:37:13 +00:00
Nico Weber 0797874f33 Remove unused code in a libc++ test.
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?)

llvm-svn: 210019
2014-06-02 12:00:08 +00:00
Marshall Clow 5f0701f270 Preparation for <string_view>. More helper functions that can be shared between <string> and <string_view>. No functionality change
llvm-svn: 210002
2014-06-02 02:22:49 +00:00