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108 Commits

Author SHA1 Message Date
Howard Hinnant
713f4db2e5 SFINAE out duration converting constructor if the constructor would otherwise cause a ratio compile-time overflow. This fixes LWG 2094. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189722 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-31 16:51:56 +00:00
Howard Hinnant
d179407288 is_destructible for function types was mistakenly returning true instead of false. This is true in both C++11 and C++1y, but has been clarified by the post C++11 LWG issue 2049. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189687 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-30 19:12:42 +00:00
Marshall Clow
08b4f3f99b LWG Issue 2162: mark allocator_traits::maxsize as noexcept 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189399 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-27 20:22:15 +00:00
Marshall Clow
7a4e374280 More support for N3657; tests for is_transparent 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188242 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-13 01:12:41 +00:00
Howard Hinnant
80e19ac90f Add a check for arrays of unknown bounds to is_destructible. This fixes http://llvm.org/bugs/show_bug.cgi?id=16839 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188080 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-09 16:53:45 +00:00
Howard Hinnant
ab61b2c9f1 War on tabs 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187906 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 19:39:48 +00:00
Howard Hinnant
f68b46f0c9 Rename time.duration.literals step 3 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187905 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 19:39:11 +00:00
Howard Hinnant
32c0969361 Rename time.duration.literals step 2 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187904 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 19:36:50 +00:00
Howard Hinnant
c29e1b949c Rename time.duration.literals step 1 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187903 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 19:35:46 +00:00
Howard Hinnant
eb34122153 Constrain fill_n -> memset operations to include implicit convertibility to unsigned char. This fixes http://llvm.org/bugs/show_bug.cgi?id=16764. Also a drive-by fix on a chrono test suite bug. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187552 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-01 00:41:55 +00:00
Marshall Clow
832b304076 Implement n3469 - constexpr for chrono 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187517 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-31 19:32:19 +00:00
Marshall Clow
ff46409221 Implement N3421; comparison predicates<void> 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187357 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-29 14:21:53 +00:00
Marshall Clow
f182038521 literal suffixes for std::chrono 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187078 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-24 21:18:14 +00:00
Marshall Clow
da0a0e8a1b Make tuple's constructor and std::get<>(tuple) constexpr. Final stage of fixing bug #16599. Thanks to Howard for the review and updates. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186834 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-22 16:02:19 +00:00
Marshall Clow
8fc4f5a251 Make std::get constexpr 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186525 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-17 18:25:36 +00:00
Marshall Clow
206f6cdc33 Bug 16599 part 2: Make std::pair's constructors and comparison operators (and make_pair) constexpr. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186430 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-16 17:45:44 +00:00
Marshall Clow
01a0e90783 Make std::forward and std::move (and std::move_if_noexcept) constexpr in C++14 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186344 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-15 20:46:11 +00:00
Howard Hinnant
1f96a4df58 A few fixes to tests for Windows port. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186334 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-15 18:09:11 +00:00
Marshall Clow
e8029e54f1 Implement n3584 - Addressing Tuples by Type 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186237 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-13 02:54:05 +00:00
Howard Hinnant
ef7a7b730c Port make_[un]signed tests to platforms where sizeof(wchar_t) == 2. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186136 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-11 23:51:05 +00:00
Marshall Clow
37c17ed07d Improved tests (and fixed a bug in the tests); thanks to Richard Smith for the suggestion 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186022 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-10 18:01:34 +00:00
Howard Hinnant
171771a9f5 War on tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185865 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-08 21:06:38 +00:00
Marshall Clow
e2735d1df0 Implement n3668 - std::exchange 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185863 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-08 20:54:40 +00:00
Marshall Clow
d29bb4b7c4 Implement n3545 for c++14 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185856 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-08 20:05:31 +00:00
Marshall Clow
933afa9761 Patch for N3655 (Transformation type traits) with Howard's additions 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185597 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-04 00:10:01 +00:00
Marshall Clow
fd7481e96d Implement n3656 - make_unique. Thanks to Howard for the review and suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185352 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-01 18:16:03 +00:00
Marshall Clow
7ec46bc422 Implement n3658 - Compile-time integer sequences 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185343 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-01 16:26:55 +00:00
Howard Hinnant
099dec1ba0 The bind and function functor constructors and assignment operators were overly general and getting confused with the copy constructor and copy assignment operators. Constrained them. This fixes http://llvm.org/bugs/show_bug.cgi?id=16385 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185297 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-01 00:01:51 +00:00
Howard Hinnant
c05e98660f Fix bind by making _is_valid_bind_return more robust. It should return false instead of give a compile time error, always. The problem was down in ____mu_return, the version that handles nested bind objects. This fixes http://llvm.org/bugs/show_bug.cgi?id=16343 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185289 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-06-30 19:48:15 +00:00
Howard Hinnant
6287c65a03 Remove cv qualifiers from member pointers in the __member_pointer_traits test. This was causing a const-qualified bind result to malfunction. This was a recent regression due to the new use of __member_pointer_traits in restricting the __invokable and __invoke_of tests. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@181935 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-05-15 21:49:27 +00:00
Howard Hinnant
ecc9742f27 Constrain __invoke functions more accurately. This fixes http://llvm.org/bugs/show_bug.cgi?id=15861 . 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@181377 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-05-07 23:40:12 +00:00
Howard Hinnant
8c23819220 Expose accidentally removed __compressed_pair constructor taking piecewise_construct_t. This fixes http://llvm.org/bugs/show_bug.cgi?id=15918 . 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@181217 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-05-06 16:58:36 +00:00
Howard Hinnant
05e7d24b3d default_delete needs a static_assert against void types. I had previously thought that sizeof(void) would take care of this. I was wrong. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@180213 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 19:44:26 +00:00
Howard Hinnant
5544f7e0c7 Somehow aligned_union got dropped through the cracks. This adds it. Did a drive-by fix of alignment_of while I was in the neighborhood. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@180036 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 19:37:49 +00:00
Howard Hinnant
4313ec3975 addressof misbehaving for type with an implicit conversion operator to char&. This fixes http://llvm.org/bugs/show_bug.cgi?id=15754 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@179608 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-16 17:27:56 +00:00
Howard Hinnant
993248935c Accidentally disallowed explicit tuple conversions when all elements of the tuple can be explicitly converted. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@179467 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 00:01:13 +00:00
Howard Hinnant
11a50ac497 Richard Smith: It was pointed out to me off-list that libc++'s non-compiler-builtin 
implementation of std::is_polymorphic does this:

template <class _Tp> struct __is_polymorphic1 : public _Tp {};

... and that g++ rejects this if _Tp has an inaccessible virtual destructor
(because __is_polymorphic1<_Tp> would have a deleted virtual destructor
overriding _Tp's non-deleted destructor). Clang was failing to reject this;
I've fixed that in r178563, but that causes libc++'s corresponding test
case to fail with both clang and gcc when using the fallback
implementation. The fallback code also incorrectly rejects final types.

The attached patch fixes the fallback implementation of is_polymorphic; we
now use dynamic_cast's detection of polymorphic class types rather than
trying to determine if adding a virtual function makes the type larger:

  enable_if<sizeof((_Tp*)dynamic_cast<const volatile
void*>(declval<_Tp*>())) != 0, ...>

Two things of note here:
* the (_Tp*) cast is necessary to work around bugs in Clang and g++ where
we otherwise don't instantiate the dynamic_cast (filed as PR15656)
* the 'const volatile' is here to treat is_polymorphic<cv T> as true for a
polymorphic class type T -- my reading of the standard suggests this is
incorrect, but it matches our builtin __is_polymorphic and gcc


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@178576 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-02 21:25:06 +00:00
Howard Hinnant
9d00ed5d87 Test case was forming the wrong limits when size_t != unsigned long. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@178370 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-29 21:22:22 +00:00
Howard Hinnant
9976b5511a This is a start at making the libc++ test suite friendlier to the -fnoexceptions flag. Although this is not a complete solution, it does reduce the number of test failures on OS X from 467 to 128 on OS X when -fno-exceptions is enabled, and does not impact the number of failures at all when -fno-exceptions is not enabled. The bulk of this code was donated anonymously. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@177824 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-23 17:27:16 +00:00
Daniel Dunbar
cedb7fcc10 [tests] One last batch of XFAILs, for tests using new symbols added to libc++. 
- As of this commit, the test suite should now fully pass on both darwin11 and
   darwin12 when testing against either a locally built libc++ or the system libc++.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@174478 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-02-06 00:59:06 +00:00
Howard Hinnant
0a69fa14d2 Zhang Xiongpang: Add definitions for const data members. Fixes http://llvm.org/bugs/show_bug.cgi?id=14585. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@170026 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-12 21:14:28 +00:00
Howard Hinnant
069bdd52c1 Andrew Morrow: There are two tests under test/utilities/memory that heap allocate two 
integers which remain unused and are subsequently leaked, so the test
fail when run under valgrind. Unless I'm overlooking a subtle reason
why they are needed I think they can be removed, allowing these tests
to pass under valgrind. The attached patch removes the variables. If
there is a reason for them to exist, I can change this to just delete
them at the end of the test.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@161195 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-02 18:39:48 +00:00
Howard Hinnant
5fec82dc0d Implement [util.smartptr.shared.atomic]. This is the last unimplemented 
section in libc++.  This requires a recompiled dylib.  Failure to rebuild
the dylib will result in a link-time error if and only if the functions from
[util.smartptr.shared.atomic] are used.

The implementation is not lock free.  After considerable thought, I know of no
way to make the implementation lock free.  Ideas welcome along that front.  But
changing the ABI of shared_ptr is not on the table at this point.

The mutex used to lock these function is encapsulated by std::__sp_mut.  The
only thing the client knows about std::__sp_mut is that it has a void* data
member, can't be constructed, and has lock and unlock members.  Within the
binary __sp_mut is currently implemented as a pointer to a std::mutex.  That can
change in the future without disturbing the ABI (as long as sizeof(__sp_mut)
remains constant.

I specifically did not make __sp_mut a spin lock as I have a pathological
distrust of spin locks.  Testing on OS X reveals that the use of std::mutex in
this role is not a large performance penalty as long as the contention for the
mutex is low (more likely to get the lock than to have to wait).  In the future
we can still make __sp_mut a spin lock if that is what is desired (without ABI
damage).

The dylib contains 16 __sp_mut's to be chosen based on the hash of the address
of the shared_ptr.  The constant 16 is a ball-park reasonable space/time
tradeoff.

std::hash<T*> was changed to call __murmur2_or_cityhash, instead of the identity
function.  I had thought we had already done this, but I was mistaken.

All of this is under #if __has_feature(cxx_atomic) even though the
implementation is not lock free, because the signatures require access to
std::memory_order, which is currently available only under
__has_feature(cxx_atomic).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160940 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-30 01:40:57 +00:00
Howard Hinnant
c425307238 Relax the complete-type checks that are happening under __invokable<Fp, Args...> to only check Fp, and not Args... . This should be sufficient to give the desired high quality diagnostics under both bind and function. And this allows a test reported by Rich E on cfe-dev to pass. Tracked by <rdar://problem/11880602>. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160285 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-16 16:17:34 +00:00
Howard Hinnant
473f838128 Applied constexpr to <chrono>. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160184 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-13 19:17:27 +00:00
Howard Hinnant
90d8723476 Apply constexpr to <bitset>. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@159899 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-07 17:04:52 +00:00
Howard Hinnant
5394c1ed30 Give tuple a constexpr default constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@159857 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-06 20:39:45 +00:00
Howard Hinnant
dc1345fd44 I believe tuple is still under development in the standard. Daniel Krugler is/will be making convincing arguments that a modified form of LWG 2051 (currently NAD Future) is easily acheivable and desirable. He has demonstrated that a tuple<T...> where all of the T are implicitly convertible from U... should have a tuple constructor that is also implicit, instead of explicit. This would support the use cases in LWG 2051 while not undermining T... with explicit conversions from U.... This check-in is an experimental implementation of Daniel's work. I believe this work to be mature enough to warrant inclusion into libc++. If anyone sees real-world problems that this check in causes, please let me know and I will revert it, and provide the feedback to the LWG. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@153855 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-01 23:10:42 +00:00
Howard Hinnant
4300839b5f Hook up to the new clang __is_trivially_constructible and __is_trivially_assignable traits. Fixes r10925427 and http://llvm.org/bugs/show_bug.cgi?id=12038. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@151406 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-24 23:32:26 +00:00
Howard Hinnant
3fadda314a Modernize relational operators for shared_ptr and unique_ptr. This includes adding support for nullptr, and using less<T*>. Fixes http://llvm.org/bugs/show_bug.cgi?id=12056. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@151084 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-21 21:02:58 +00:00