1c2c986796
Fix undefined behavior in syntax_option_type::operator~ and match_flag_type::operator./a.out Found by UBSan
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llvm-svn: 177693
2013-03-22 02:13:55 +00:00
591ebe3cbb
This is an optimization which produces improved launching time. There should be no functionality change. Clients should see no ABI differences.
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llvm-svn: 177443
2013-03-19 21:34:48 +00:00
69e76f80e2
Removed raw references to __sun__, __FreeBSD__, __GLIBC__ and __linux__; now just check to see if they are defined.
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llvm-svn: 177310
2013-03-18 19:34:07 +00:00
7415c8b171
Removed raw references to _MSC_VER; now just check to see if it is defined.
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llvm-svn: 177304
2013-03-18 18:20:48 +00:00
b56e8587af
Removed raw references to __APPLE__; now just check to see if it is defined.
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llvm-svn: 177297
2013-03-18 17:45:34 +00:00
91907cbe82
Removed raw references to _WIN32; now just check to see if it is defined.
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llvm-svn: 177291
2013-03-18 17:04:29 +00:00
41801f14ed
This SO question: http://stackoverflow.com/questions/15344402/how-can-i-read-a-0xff-in-a-file-with-libc-istream-iterator/15347225#15347225 highlighted the lack of a cast in the implementation of std::cin. Added. I unfortunately don't have a test case to add to the suite since this bug only shows itself when using std::cin. The current testsuite setup does not have a way a good way to test std::cin.
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llvm-svn: 176822
2013-03-11 19:53:48 +00:00
7e4844b353
Parsing floating point numbers with very long precision was broken, and this patch fixes it. This fixes http://llvm.org/bugs/show_bug.cgi?id=15445 .
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llvm-svn: 176711
2013-03-08 19:06:24 +00:00
c60bf548c5
Albert Wong: definition for regex_traits<_CharT>::__regex_word.
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llvm-svn: 176640
2013-03-07 19:38:08 +00:00
ead480d30a
Change _LIBCPP_TYPE_VIS to use __type_visibility__(default) instead of __visibility__(default) when available. This change makes just the type_info visible so that types like vectors and strings can be used as exception objects across dylib boundaries even when hidden visibility is specified globally (at the command line), and yet this allows clients to hide the member functions of things like vector and string (with global visibility commands).
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llvm-svn: 176639
2013-03-07 19:25:03 +00:00
6e41256f68
No functionality change at this time. I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute.
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llvm-svn: 176593
2013-03-06 23:30:19 +00:00
65f58f3fe8
Have basic_istream::read call sgetn intead of sbumpc individual characters. This addresses http://llvm.org/bugs/show_bug.cgi?id=15427 .
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llvm-svn: 176573
2013-03-06 19:27:56 +00:00
3fb6c6e50d
Correct silly type-o. Thanks Richard.
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llvm-svn: 176568
2013-03-06 18:16:12 +00:00
53b9ee061f
The bitset(unsigned long long) constructor was broken by the constexpr additions only on 32 bit platforms. Fixed. This addresses http://llvm.org/bugs/show_bug.cgi?id=15444 .
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llvm-svn: 176559
2013-03-06 17:30:26 +00:00
a9f698009f
Alexey Samsonov: #ifdefs out undefined function in static build of libc++ w/o RTTI.
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llvm-svn: 176026
2013-02-25 15:50:36 +00:00
c0c9748c11
Constrain bind operator()() to not exist if the call is not valid. Fixes http://llvm.org/bugs/show_bug.cgi?id=15295 .
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llvm-svn: 175774
2013-02-21 18:16:55 +00:00
b6e5f854f5
Change the 'result_type' from unsigned to 'uint_fast32_t'. This eliminates truncation warnings on Linux
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llvm-svn: 174669
2013-02-07 22:12:02 +00:00
aba500d633
Revert accidental check-in. These changes are probably good, but premature at this point.
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llvm-svn: 174625
2013-02-07 15:31:44 +00:00
804f9116e5
Michael van der Westhuizen: The attached patch add support for building against libc++abi and libcxxrt to CMake builds of libc++.
...
Usage (with the appropriate CC and CXX environment variables) is:
$ cmake -DLIBCXX_CXX_ABI=libcxxabi '-DLIBCXX_LIBCXXABI_INCLUDE_PATHS=/home/michael/libcxxabi/include' ../libcxx
and:
$ cmake -DLIBCXX_CXX_ABI=libcxxrt '-DLIBCXX_LIBCXXRT_INCLUDE_PATHS=/home/michael/libcxxrt/src' ../libcxx
llvm-svn: 174623
2013-02-07 15:27:39 +00:00
d3d4356f6e
Marcin Zalewski: Change the name of a template parameter in __copy_backward from _InputIterator to _BidirectionalIterator to better document the intent of the algorithm.
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llvm-svn: 174544
2013-02-06 21:03:39 +00:00
2446649c1e
Saleem Abdulrasool: If errno is defined as volatile int, the qualifier differences can cause
...
template typename deductions on swap<> (used in string.cpp). Use
decltype(errno) to replicate the type and qualifier information for holding the
errno value. Because errno is expected to be assignable, there is no need to
use typename std::remove_const<decltype(errno)>::type to hold the value.
llvm-svn: 173172
2013-01-22 17:26:08 +00:00
ead15d1f95
Implement the ATOMIC_*_LOCK_FREE macros.
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llvm-svn: 173084
2013-01-21 20:39:41 +00:00
8d3e797444
Donated anonymously: This enables GCC 4.8.0 to build libc++.
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llvm-svn: 173060
2013-01-21 17:26:55 +00:00
3d7eb2f806
Optimize basic_ostream::write by having it call sputn instead of sputc.
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llvm-svn: 172542
2013-01-15 17:22:03 +00:00
980e7e7402
Make <cmath> classification macros work with integral types.
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llvm-svn: 172461
2013-01-14 20:56:22 +00:00
2153d69672
Fix a race in the construction of future. This fixes http://llvm.org/bugs/show_bug.cgi?id=14934 .
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llvm-svn: 172456
2013-01-14 20:01:24 +00:00
f1e633c154
Michael van der Westhuizen: Patches for Linux. Fixes http://llvm.org/bugs/show_bug.cgi?id=14648 .
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llvm-svn: 172435
2013-01-14 17:07:27 +00:00
8d9aec8802
Fix exception safety bug in vector::push_back
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llvm-svn: 172250
2013-01-11 20:36:59 +00:00
114676622f
atomic_bool was missing (just a typedef to atomic<bool>).
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llvm-svn: 171498
2013-01-04 18:58:50 +00:00
861f006d3f
Klaas de Vries: Fix bug in libc++'s std::string::find_first_not_of.
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llvm-svn: 171321
2012-12-31 20:09:48 +00:00
e70a813b59
Don't mark variadic functions as always inline -- they cannot in fact be
...
inlined.
Patch by Saleem Abdulrasool, reviewed by Michael Spencer and Richard Smith.
llvm-svn: 171276
2012-12-31 06:09:54 +00:00
a96d74585f
Remove test for eof from istreambuf_iterator constructors. It is no longer necessary and potentially violates the constructor's noexcept spec.
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llvm-svn: 171232
2012-12-29 17:45:42 +00:00
3b42bdd58a
Hyeon-Bin Jeong: readsome() need to reset gcount to zero. This fixes http://llvm.org/bugs/show_bug.cgi?id=14670 .
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llvm-svn: 170703
2012-12-20 15:40:28 +00:00
e3fbbccc0f
Implement std::is_base_of for the case where we don't have a compiler
...
intrinsic. This relies upon the fact that overload resolution does not check
access and ambiguity for a derived-to-base conversion. This passes all
is_base_of tests in the test suite.
llvm-svn: 170662
2012-12-20 04:20:28 +00:00
36a60721ce
Added static_assert to std::get<N>(std::array) calls to catch "out of bounds" calls
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llvm-svn: 170435
2012-12-18 16:46:30 +00:00
16694b5df5
Zhang Xiongpang: Add definitions for const data members. Fixes http://llvm.org/bugs/show_bug.cgi?id=14585 .
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llvm-svn: 170026
2012-12-12 21:14:28 +00:00
e1f363c724
Remove 'noreturn' attribute from friend declaration. This attribute will be
...
inherited from the previous out-of-class declaration, and attributes on friend
function declarations are ill-formed in C++11.
llvm-svn: 168853
2012-11-29 04:30:50 +00:00
f8b24cf5f7
Dimitry Andric: When using libc++ headers on FreeBSD, in combination with -std=c++98,
...
-ansi or -std=c++03, the long long type is not supported. So in this
case, several functions and types, like lldiv_t, strtoll(), are not
declared.
llvm-svn: 168610
2012-11-26 21:18:17 +00:00
dfdf5085df
istreambuf_iterator increment should call sbumpc instead of snextc. Patch
...
by Kimball Thurston. This fixes http://llvm.org/bugs/show_bug.cgi?id=14358 .
llvm-svn: 168209
2012-11-16 22:17:23 +00:00
b5c63a2e07
Restrict optimized __pad_and_output implementation detail to desired releases.
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llvm-svn: 167980
2012-11-14 21:17:15 +00:00
119703f984
Dimitry Andric: Silence some miscellaneous warnings.
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llvm-svn: 167493
2012-11-06 21:55:44 +00:00
3e2740a36c
Dimitry Andric: Silence some warnings in <locale>.
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llvm-svn: 167492
2012-11-06 21:48:33 +00:00
a01739a03a
Enable the tuple interface of pair in C++03 mode.
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llvm-svn: 167491
2012-11-06 21:42:45 +00:00
cd47cbc7a4
Provide a way to disable use of extern templates in libc++. This is intended for the clients of libc++, not the libc++ build. The dylib should always contain the extern templates. To disable the client needs to put -D'_LIBCPP_EXTERN_TEMPLATE(...)=' on the command line.
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llvm-svn: 167486
2012-11-06 21:08:48 +00:00
66e7ed959f
peek should set eofbit if sgetc() returns eof.
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llvm-svn: 167238
2012-11-01 17:32:07 +00:00
b304811686
Richard Smith: This fixes a problem in std::is_constructible for incomplete types, and those types with a user-defined operator,().
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llvm-svn: 167233
2012-11-01 16:32:14 +00:00
54d333a601
Rename uses of _ and __ because these are getting stepped on by macros from other system code.
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llvm-svn: 167038
2012-10-30 19:06:59 +00:00
6758190507
Use traits_type::to_int_type in basic_streambuf<_CharT, _Traits>::xsputn when calling overflow to correctly handle negative signed character types. This fixes http://llvm.org/bugs/show_bug.cgi?id=14074 .
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llvm-svn: 165884
2012-10-13 19:31:51 +00:00
7ba8160360
Dimitry Andric: FreeBSD only: Add the C11 aligned_alloc to <cstdlib> and adjust the inclusion of quick_exit.
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llvm-svn: 165882
2012-10-13 18:03:53 +00:00
88db3171dd
Don't neglect to "return *this".
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llvm-svn: 165860
2012-10-13 02:03:45 +00:00
f543a75be1
Holger Arnold: Correct the use and testing of __GNUC__ and __GNUC_MINOR__ in <__config>.
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llvm-svn: 165151
2012-10-03 20:48:05 +00:00
6e551ae1a3
Make vector::iterator and string::iterator more resilient against overly generic relational operators.
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llvm-svn: 165033
2012-10-02 19:45:42 +00:00
59fb5c6559
Due to a mistake on my own part, I need to burn some version numbers. This does not impact any of the implementation of libc++, and does not impact the ABI in any way.
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llvm-svn: 164832
2012-09-28 17:42:25 +00:00
324c084654
Bump _LIBCPP_VERSION to 1002
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llvm-svn: 164700
2012-09-26 15:38:09 +00:00
8e747d3671
Apply the emulated nullptr_t with constexpr. This is an unusual configuration that would take advantage of this. But it has popped up in the wild and does no harm to support it.
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llvm-svn: 164575
2012-09-24 23:36:40 +00:00
c43826f003
Add overflow check to tanh(complex) and reduce to finite answer. Fixes http://llvm.org/bugs/show_bug.cgi?id=13874
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llvm-svn: 164266
2012-09-19 23:51:47 +00:00
92b5940fbb
Overloaded __pad_and_output on ostreambuf_iterator and in this overload call sputn instead of dereferencing the iterator which calls sputc. This is intended to be purely a performance optimization, especially for clients who may have overloaded the virtual function xsputn.
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llvm-svn: 164241
2012-09-19 19:14:15 +00:00
a0bc10dca6
Align <atomic> with clang r163964 which disallows const _Atomic types.
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llvm-svn: 164004
2012-09-16 20:33:09 +00:00
aeb85680fb
Dimitry Andric: many visibility fixes. Howard: Much appreciated. Can you send me a patch to CREDITS.TXT?
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llvm-svn: 163862
2012-09-14 00:39:16 +00:00
ab303f7e47
Dimitry Andric: FreeBSD porting tweaks for PTHREAD_MUTEX_INITIALIZER and PTHREAD_COND_INITIALIZER
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llvm-svn: 163626
2012-09-11 16:10:20 +00:00
49713b442c
Some minor mingw64 porting tweaks from Glen.
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llvm-svn: 163120
2012-09-03 18:13:11 +00:00
aad745a024
Change sleep_for, sleep_until, and the condition_variable timed wait
...
functions to protect against duration and time_point overflow. Since
we're about to wait anyway, we can afford to spend a few more cycles on
this checking. I purposefully did not treat the timed try_locks with
overflow checking. This fixes
http://llvm.org/bugs/show_bug.cgi?id=13721 . I'm unsure if the standard
needs clarification in this area, or if this is simply QOI. The
<chrono> facilities were never intended to overflow check, but just to
not overflow if durations stayed within +/- 292 years.
llvm-svn: 162925
2012-08-30 19:14:33 +00:00
3320c058bf
Hyeon-bin Jeong: libc++ fails to create any classes inherit from basic_ios if they
...
provided char type other than char or wchar_t. It throw exception during
construction, so there is no chance to imbue own ctype.
This fixes http://llvm.org/bugs/show_bug.cgi?id=13698
llvm-svn: 162648
2012-08-26 18:05:35 +00:00
e890ab2377
Michel Morin: My previous fix for C++03 was incomplete.
...
It does not consider user-defined conversions that convert an rvalue
into an lvalue and works incorrectly for types with such a conversion
operator.
For example,
struct foo
{
operator int&();
};
returns false_type.
Attached a patch that fixes this problem.
http://llvm.org/bugs/show_bug.cgi?id=13601
llvm-svn: 162644
2012-08-25 15:06:50 +00:00
dbbdd0c1f0
Have basic_istream seekg, putback and unget first clear eofbit. Fixes http://llvm.org/bugs/show_bug.cgi?id=13089 .
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llvm-svn: 162608
2012-08-24 22:03:03 +00:00
bfd96e11ed
Hyeon-Bin Jeong: 1. sync() should reset it’s external buffer pointers.
...
Remaining characters should be discarded once sync() called. If don’t, garbage
characters can be inserted to the front of external buffer in underflow().
Because underflow() copies remaining characters in external buffer to it’s
front. This results wrong characters insertion when seekpos() or seekoff() is
called.
this line should be inserted in sync() just before return:
__extbufnext_ = __extbufend_ = __extbuf_;
2. sync() should use length() rather than out() to calculate offset.
Reversing iterators and calling out() to calculate offset from behind is
working fine in stateless character encoding. However, in stateful encoding,
escape sequences could differ in length. As a result, out() could return wrong
length.
For example, if we have internal buffer converted from this external sequence:
(capital letters mean escape sequence)
… a a a a B b b b b
out() produces this sequence.
b b b b A a a a a
Because out() inserts escape sequence A rather than B, result sequence doesn't
match to external sequence. A and B could have different lengths, result offset
could be wrong value too.
length() method in codecvt is right for calculating offset, but it counts
offset from the beginning of buffer. So it requires another state member
variable to hold state before conversion.
Fixes http://llvm.org/bugs/show_bug.cgi?id=13667
llvm-svn: 162601
2012-08-24 21:20:56 +00:00
49a37bbb9f
Fix basic_filebuf's internal buffer is shrinking when using with some codecvt. http://llvm.org/bugs/show_bug.cgi?id=13602
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llvm-svn: 162585
2012-08-24 20:37:00 +00:00
45c03a8f8d
Fixed order of calling use_facet vs setbuf in basic_filebuf default constructor.
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llvm-svn: 162571
2012-08-24 18:06:47 +00:00
cc27317a62
basic_filebuf needs to delay obtaining a codecvt facet from the global locale to give the client a chance to imbue the proper locale. Fixes http://llvm.org/bugs/show_bug.cgi?id=13663 .
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llvm-svn: 162567
2012-08-24 16:52:47 +00:00
a3b7a802cc
In C++03 mode add an explicit conversion from int to the emulated class enum. Fixes a problem reported by C. Bergström.
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llvm-svn: 162189
2012-08-19 17:14:47 +00:00
e4b2a743b8
Patch contributed by Dev Dude for mingw64 port.
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llvm-svn: 162188
2012-08-19 15:13:16 +00:00
a0b42cacbf
Apply patches supplied by Michel Morin in http://llvm.org/bugs/show_bug.cgi?id=13601 to correct bugs in is_convertible for the case that the intrinsic __is_convertible_to is not available.
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llvm-svn: 162111
2012-08-17 17:54:11 +00:00
7ee271360d
Consistently label __bit_array as a struct, not a class.
...
llvm-svn: 162108
2012-08-17 17:10:18 +00:00
4179da6a6a
Patch constributed by Michel Moren in http://llvm.org/bugs/show_bug.cgi?id=13592 . Fixes is_convertible<From, To> when To is an abstract type.
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llvm-svn: 161755
2012-08-13 12:29:17 +00:00
1237dccaea
std::equal operating on non-const __bit_iterators was not working. This fixes it.
...
llvm-svn: 161309
2012-08-05 21:43:11 +00:00
aca09de378
Performance tweaking rotate.
...
rotate is a critical algorithm because it is often used by other algorithms,
both std and non-std. The main thrust of this optimization is a specialized
algorithm when the 'distance' to be shifted is 1 (either left or right). To my
surprise, this 'optimization' was not effective for types like std::string.
std::string favors rotate algorithms which only use swap. But for types like
scalars, and especially when the sequence is random access, these new
specializations are a big win. If it is a vector<size_t> for example, the
rotate is done via a memmove and can be several times faster than the gcd
algorithm.
I'm using is_trivially_move_assignable to distinguish between types like int and
types like string. This is obviously an ad-hoc approximation, but I haven't
found a case where it doesn't give good results.
I've used a 'static if' (with is_trivially_move_assignable) in three places.
Testing with both -Os and -O3 showed that clang eliminated all code not be
executed by the 'static if' (including the 'static if' itself).
llvm-svn: 161247
2012-08-03 18:01:20 +00:00
d77851e837
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).
llvm-svn: 160940
2012-07-30 01:40:57 +00:00
c904ad4518
Patch by Andrew C. Morrow: shims to work around macroized getc and putc on linux. On my eglibc 2.13 based Debian system 'getc' is a macro defined in
...
/usr/include/stdio.h. This decision to make it a macro doesn't seem to
be guarded by any feature test macro as far as I can see.
llvm-svn: 160799
2012-07-26 20:01:13 +00:00
a1d07d57a7
<algorithm> no longer needs to include <cstdlib>, but can get away with just <cstddef>. This was brought to my attention by Salvatore Benedetto in his port to a bare-metal coretex-m3. This exposed two test bugs where an explicit #include <cstdlib> was needed.
...
llvm-svn: 160786
2012-07-26 17:09:09 +00:00
6a03f169db
locale::id really needs to be constructed at compile time.
...
llvm-svn: 160785
2012-07-26 16:14:37 +00:00
535a86c3f8
libc++: switch from using _ATTRIBUTE(noreturn) (which conflicts with a
...
platform-provided macro on some systems) to _LIBCPP_NORETURN.
llvm-svn: 160773
2012-07-26 02:04:22 +00:00
9d772d17b3
Apple LWG 2067: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3318.html#2067 . This is the only actionable change that has been made to the C++ draft since C++11. In general it has not been decided exactly how libc++ will track changes made to C++11. New features and design changes will probably be #ifdef'd, especially if they are not backwards compatible. Defects and 'dumb mistakes' are more likely to just be put in. Decisions on telling one from the other will be made on a case by case basis.
...
llvm-svn: 160608
2012-07-21 19:34:12 +00:00
a4820bc4d5
noexcept applied to <future>.
...
llvm-svn: 160607
2012-07-21 17:46:55 +00:00
36101a5b0a
noexcept applied to <thread>.
...
llvm-svn: 160606
2012-07-21 16:50:47 +00:00
45c663db4e
noexcept applied to <condition_variable>.
...
llvm-svn: 160605
2012-07-21 16:32:53 +00:00
02e610ef34
noexcept and constexpr applied to <mutex>.
...
llvm-svn: 160604
2012-07-21 16:13:09 +00:00
42be98ab54
noexcept and constexpr applied to <regex>.
...
llvm-svn: 160594
2012-07-21 01:31:58 +00:00
5d926bf1b8
noexcept and constexpr applied to <ios>.
...
llvm-svn: 160593
2012-07-21 01:03:40 +00:00
bf882037be
noexcept applied to <valarray>.
...
llvm-svn: 160592
2012-07-21 00:51:28 +00:00
f4e11de8e8
constexpr applied to <complex>.
...
llvm-svn: 160585
2012-07-20 22:18:27 +00:00
00586de436
noexcept applied to <random>.
...
llvm-svn: 160579
2012-07-20 21:44:27 +00:00
8e882dcb2e
noexcept applied to <iterator>.
...
llvm-svn: 160565
2012-07-20 19:36:34 +00:00
397717b7c8
constexpr applied to <array>.
...
llvm-svn: 160564
2012-07-20 19:20:49 +00:00
931644bfec
constexpr applied to <string>.
...
llvm-svn: 160563
2012-07-20 19:09:12 +00:00
14c56f6c4a
Further tweaks on relaxing complete type checking for function.
...
llvm-svn: 160562
2012-07-20 18:56:07 +00:00
403845ba75
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>.
...
llvm-svn: 160285
2012-07-16 16:17:34 +00:00
c033115394
Applied constexpr to <chrono>.
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llvm-svn: 160184
2012-07-13 19:17:27 +00:00
9146984e73
Fixed a bug in wstring_convert concerning zero-length inputs. Thanks to Jonathan Coxhead for reporting this bug.
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llvm-svn: 160136
2012-07-12 18:07:41 +00:00
598f702b04
Change emplace for vector and deque to create the temporary (when necessary) before any changes to the container are made. Nikolay Ivchenkov deserves the credit for pushing this problem and the solution for it.
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llvm-svn: 159918
2012-07-08 23:23:04 +00:00
c0937e8add
Appy constexpr to <memory>. Picked up a few missing noexcepts as well.
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llvm-svn: 159902
2012-07-07 20:56:04 +00:00
Marshall Clow