66e7ed959f
peek should set eofbit if sgetc() returns eof.
...
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,().
...
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.
...
llvm-svn: 167038
2012-10-30 19:06:59 +00:00
523623c239
Add an entry in CREDITS.TXT
...
llvm-svn: 165949
2012-10-15 17:34:53 +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 .
...
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.
...
llvm-svn: 165882
2012-10-13 18:03:53 +00:00
88db3171dd
Don't neglect to "return *this".
...
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>.
...
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.
...
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.
...
llvm-svn: 164832
2012-09-28 17:42:25 +00:00
324c084654
Bump _LIBCPP_VERSION to 1002
...
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.
...
llvm-svn: 164575
2012-09-24 23:36:40 +00:00
b07ddfcac7
Updating email address
...
llvm-svn: 164489
2012-09-24 14:27:10 +00:00
feeec326fe
Fix installheaders target to do what it did prior to r161760. rdar://12348765
...
llvm-svn: 164413
2012-09-21 20:49:54 +00:00
c43826f003
Add overflow check to tanh(complex) and reduce to finite answer. Fixes http://llvm.org/bugs/show_bug.cgi?id=13874
...
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.
...
llvm-svn: 164241
2012-09-19 19:14:15 +00:00
a0bc10dca6
Align <atomic> with clang r163964 which disallows const _Atomic types.
...
llvm-svn: 164004
2012-09-16 20:33:09 +00:00
948b8cb51b
Update CREDITS.TXT
...
llvm-svn: 163949
2012-09-14 23:28:54 +00:00
aeb85680fb
Dimitry Andric: many visibility fixes. Howard: Much appreciated. Can you send me a patch to CREDITS.TXT?
...
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
...
llvm-svn: 163626
2012-09-11 16:10:20 +00:00
49713b442c
Some minor mingw64 porting tweaks from Glen.
...
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
2e8e1d42be
Update CREDITS.TXT
...
llvm-svn: 162647
2012-08-26 17:46:29 +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
7b838f53a6
Wrap throw in _LIBCPP_NO_EXCEPTIONS in debug.cpp. Calls abort if can't throw an exception. Fixes http://llvm.org/bugs/show_bug.cgi?id=13082 .
...
llvm-svn: 162613
2012-08-24 22:15:12 +00:00
dbbdd0c1f0
Have basic_istream seekg, putback and unget first clear eofbit. Fixes http://llvm.org/bugs/show_bug.cgi?id=13089 .
...
llvm-svn: 162608
2012-08-24 22:03:03 +00:00
bad901b362
Add Hyeon-bin Jeong to CREDITS.TXT
...
llvm-svn: 162604
2012-08-24 21:45:19 +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
...
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.
...
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 .
...
llvm-svn: 162567
2012-08-24 16:52:47 +00:00
c740e05316
Fix a typo in the docs
...
llvm-svn: 162335
2012-08-22 00:57:11 +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.
...
llvm-svn: 162189
2012-08-19 17:14:47 +00:00
e4b2a743b8
Patch contributed by Dev Dude for mingw64 port.
...
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.
...
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
700de17aea
Remove obsolete do-installhdrs target (again).
...
llvm-svn: 161761
2012-08-13 16:32:15 +00:00
76bd025868
Remove obsolete do-installhdrs target.
...
llvm-svn: 161760
2012-08-13 16:17:12 +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.
...
llvm-svn: 161755
2012-08-13 12:29:17 +00:00
d79842c2bf
Change size of reference count field in __libcpp_nmstr from 32 bits to 64 bits for 64 bit targets. This is controls the data layout of all exceptions defined in <stdexcept>. This aligns the ABI with that of gcc-4.2.
...
llvm-svn: 161497
2012-08-08 16:17:31 +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
73984be057
Andrew Morrow: The current CMake setup for libc++ incorrectly uses the variable
...
LLVM_ENABLE_ASSERTIONS instead of LIBCXX_ENABLE_ASSERTIONS when
figuring out what _DEBUG/NDEBUG defines to set. It also tries to test
the non-existent variable 'uppercase_CMAKE_BUILD_TYPE', which the top
level LLVM CMakeLists.txt sets up, but which the top level libc++
CMakeLists.txt currently does not. Changing the variable name tested
and creating the uppercase release name variable allows libc++ to
honor the LIBCXX_ENABLE_ASSERTIONS option correctly.
llvm-svn: 161308
2012-08-05 17:37:39 +00:00
c51171e0e9
Loosen up the timing requirements on 4 more tests.
...
llvm-svn: 161289
2012-08-04 00:47:42 +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
0cbea7fa90
Andrew Morrow: The attached patch updates the initialization of the 'struct tm' in
...
__time_get_storage<char> to match the initialization behavior in
__time_get_storage<wchar>. Without the initialization, valgrind
reports errors in the subsequent calls to strftime_l.
llvm-svn: 161196
2012-08-02 18:44:17 +00:00
fb2f0a5e01
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.
llvm-svn: 161195
2012-08-02 18:39:48 +00:00
c1a45fb70f
Andrew Morrow: The attached patch updates the lit.config for libc++ unit tests so
...
that the valgrind configuration passed to lit.py is used to run .pass
tests.
llvm-svn: 161193
2012-08-02 18:36:47 +00:00
4df0a6adf6
Andrew Morrow: Among the various libc++ tests that currently don't pass on Linux are
...
localization/locale.categories/category.collate/category.ctype/locale.ctype.byname/is_1.pass.cpp
and scan_is.pass.cpp. The tests fail when the character class being
tested is compound, like ctype_base::alnum or ctype_base::graph,
because the existing series of conditionals in do_is an do_scan_is
will abort too early. For instance, if the character class being
tested is alnum, and the character is numeric, do_is will return false
because iswalpha_l will return false, 'result' becomes false, and the
'true' result from the later call to iswdigit_l ends up being ignored
. A similar problem exists in do_scan_is.
llvm-svn: 161192
2012-08-02 18:35:07 +00:00
d3673eb4e1
Andrew Morrow: The attached patch is an attempt to implement
...
std:🧵 :hardware_concurrency for platforms that don't offer
sysctl, but do provide a POSIX sysconf and _SC_NPROCESSORS_ONLN.
llvm-svn: 161190
2012-08-02 18:17:49 +00:00
a30af5f7cd
Andrew Morrow: This patch fixes
...
test/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters.arithmetic/pointer.pass.cpp
to accept '(nil)' as a valid representation for NULL so that the test
passes on Linux. The same thing is already done in some other tests,
like in /test/localization/locale.categories/category.numeric/locale.nm.put/facet.num.put.members/put_pointer.pass.cpp.
llvm-svn: 161188
2012-08-02 18:12:06 +00:00
8eb04fe53c
Andrew Morrow: Attached is a writeup of the current state of the libc++ test suite on Linux.
...
There are a few tests that are listed as failing here for which I have
a patch in the works. I'll be sending those along soon. There are
others where I know what is going on but don't yet have a solution,
and I've included some notes for those. Several still need to be
investigated, mostly in localization and the regex test suite. I think
that many of these failures are due to locale implementation
variations that make the expected test results not match the actual
results. I'm not sure what the best way to make the tests accomodate
this sort of variation might be.
The failures in the unique_ptr test suite are very new and are caused
by a clang crash which I've not yet looked into.
llvm-svn: 161079
2012-07-31 21:30:28 +00:00
088e37c77a
Despite my pathological distrust of spin locks, the number just don't lie. I've put a small spin in __sp_mut::lock() on std::mutex::try_lock(), which is testing quite well. In my experience, putting in a yield for every failed iteration is also a major performance booster. This change makes one of the performance tests I was using (a highly contended one) run about 20 times faster.
...
llvm-svn: 160967
2012-07-30 17:13:21 +00:00
355b660a4b
Updated status
...
llvm-svn: 160959
2012-07-30 13:59:36 +00:00
fe9fe2dedc
Updated the complete by-chapter graph
...
llvm-svn: 160943
2012-07-30 02:29:34 +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
c2e9354004
Update CREDITS.TXT
...
llvm-svn: 160812
2012-07-26 20:22:37 +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
dce0696a36
Patch by Andrew C. Morrow: Conditionally include cxxabi.h in new.cpp and typeinfo.cpp. Both new.cpp and typeinfo.cpp have code that is conditionally compiled
...
based on the LIBCXXRT and _LIBCPPABI_VERSION defines, but those files
do not currently include <cxxabi.h> in the non __APPLE__ case. The
attached patch updates those files so that for non __APPLE__ builds
<cxxabi.h> is included if available or if LIBCXXRT is set. I'm
modeling this on the recent updates to exception.cpp.
llvm-svn: 160790
2012-07-26 17:42:39 +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
11ac39722c
Relax the tolerances on some timing tests.
...
llvm-svn: 160566
2012-07-20 19:48:05 +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
07ce90bb9d
Jean-Daniel : clang now supports all required type_traits.
...
llvm-svn: 160510
2012-07-19 15:59:52 +00:00
51eb2adb2d
Jean-Daniel updates the libc++ index page to reflect not so recent changes in C++ standard status.
...
llvm-svn: 160509
2012-07-19 15:57:51 +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>.
...
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.
...
llvm-svn: 160136
2012-07-12 18:07:41 +00:00
ceefe51364
Teach libc++ to check for libc++abi and use its features if they're available.
...
llvm-svn: 160038
2012-07-11 09:35:47 +00:00
38b99b025c
Add test for self-referencing emplace test.
...
llvm-svn: 159921
2012-07-09 02:47:43 +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.
...
llvm-svn: 159918
2012-07-08 23:23:04 +00:00
c0937e8add
Appy constexpr to <memory>. Picked up a few missing noexcepts as well.
...
llvm-svn: 159902
2012-07-07 20:56:04 +00:00
bfa7990b5a
Apply constexpr to the mutex constructor. As a conforming extension, apply constexpr to the condition_variable constructor. These are important because it enables the compiler to construct these types at compile time, even though the object will be non-const. Since they are constructed at compile time, there is no chance of a data race before they are constructed.
...
llvm-svn: 159901
2012-07-07 20:01:52 +00:00
eeac9fcfb7
Apply constexpr to <bitset>.
...
llvm-svn: 159899
2012-07-07 17:04:52 +00:00
8a9ee14803
Apply noexcept to tuple.
...
llvm-svn: 159865
2012-07-06 21:53:48 +00:00
a0f4c45c38
As a conforming extension give tuple a noexcept default constructor conditionalized on its held types.
...
llvm-svn: 159858
2012-07-06 20:50:27 +00:00
a62ebe043e
Give tuple a constexpr default constructor.
...
llvm-svn: 159857
2012-07-06 20:39:45 +00:00
9f06558f86
New Windows libc++ test results provided by Ruben Van Boxem.
...
llvm-svn: 159852
2012-07-06 19:35:31 +00:00
9d6d1c6860
Apply noexcept to those functions implemented in <cstdlib> as a conforming extension.
...
llvm-svn: 159850
2012-07-06 19:16:56 +00:00
9c14b75a37
Apply noexcept to those functions implemented in <cmath> as a conforming extension.
...
llvm-svn: 159849
2012-07-06 19:13:50 +00:00
227001d12e
Add noexcept test for offsetof macro per [support.types]/p4.
...
llvm-svn: 159846
2012-07-06 18:39:01 +00:00
4cb38a82a2
This commit establishes a new bucket_count policy in the unordered containers: The policy now allows a power-of-2 number of buckets to be requested (and that request honored) by the client. And if the number of buckets is set to a power of 2, then the constraint of the hash to the number of buckets uses & instead of %. If the client does not specify a number of buckets, then the policy remains unchanged: a prime number of buckets is selected. The growth policy is that the number of buckets is roughly doubled when needed. While growing, either the prime, or the power-of-2 strategy will be preserved. There is a small run time cost for putting in this switch. For very cheap hash functions, e.g. identity for int, the cost can be as high as 18%. However with more typical use cases, e.g. strings, the cost is in the noise level. I've measured cases with very cheap hash functions (int) that using a power-of-2 number of buckets can make look up about twice as fast. However I've also noted that a power-of-2 number of buckets is more susceptible to accidental catastrophic collisions. Though I've also noted that accidental catastrophic collisions are also possible when using a prime number of buckets (but seems far less likely). In short, this patch adds an extra tuning knob for those clients trying to get the last bit of performance squeezed out of their hash containers. Casual users of the hash containers will not notice the introduction of this tuning knob. Those clients who swear by power-of-2 hash containers can now opt-in to that strategy. Clients who prefer a prime number of buckets can continue as they have.
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llvm-svn: 159836
2012-07-06 17:31:14 +00:00
6b45660f14
link to Marshall's notes.
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llvm-svn: 159791
2012-07-06 00:39:38 +00:00
6317bfb26a
mark operator new(std::nothrow) as noalias (aka __attribute__((malloc))
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llvm-svn: 159359
2012-06-28 16:47:34 +00:00
f08ebab2ea
Fixed a bug regarding result_of reported by Sven Behne. The fix is C++11 only mainly because result_of is a variadic beast and working with variadics is just such a problem in C++03 mode. This should bring result_of up to full conformance with the C++11 spec.
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llvm-svn: 159211
2012-06-26 17:37:15 +00:00
d8ed7e5b03
fix help with bash
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llvm-svn: 159177
2012-06-25 23:51:05 +00:00
c418654096
Revert pair constructors back to using is_convertible instead of is_constructible. This should pull things into alignment with the final draft. Fixes http://llvm.org/bugs/show_bug.cgi?id=13063#add_comment .
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llvm-svn: 158280
2012-06-09 20:01:23 +00:00
07db340438
Fix warning flags for CMake builds, from Andrew C. Morrow!
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llvm-svn: 158172
2012-06-07 22:26:00 +00:00
0bc272cf9a
Fix a few testsuite bugs involving trailing null (or lack thereof) in strstream.
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llvm-svn: 157832
2012-06-01 20:02:59 +00:00
4c0de496a0
Fix dangling else clause. Bug found and fixed by Dimitry Andric.
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llvm-svn: 157779
2012-05-31 23:12:03 +00:00
78b4015c1c
Fix the new _ALIGNAS_TYPE per instructions supplied by Eli Friedman.
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llvm-svn: 157765
2012-05-31 20:14:00 +00:00
bf33f5b292
Protect use of alignas against older versions of clang
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llvm-svn: 157764
2012-05-31 19:31:14 +00:00
8b805c915a
The rules for emplace in map, multimap, unordered_map and unordered_multimap changed a while back and I'm just now updating to these new rules. In a nutshell, you've got to know you're emplacing to a pair and use one of pair's constructors. I made one extension: If you want to emplace the key and default construct the mapped_type, you can just emplace(key), as opposed to emplace(piecewise_construct, forward_as_tuple(key), forward_as_tuple()).
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llvm-svn: 157503
2012-05-25 22:04:21 +00:00
a960edd203
Fix memory corruption bug found and fixed by Andrew C. Morrow.
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llvm-svn: 157476
2012-05-25 15:55:46 +00:00
49c3b20737
Add documentation regarding -fno-rtti.
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llvm-svn: 157157
2012-05-20 13:03:53 +00:00
ed81e910bd
Revert fix to http://llvm.org/bugs/show_bug.cgi?id=12867 for the reason now included in the code comment.
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llvm-svn: 157128
2012-05-19 20:20:49 +00:00
a336f5e645
Revert my _LIBCPP_INLINE_VISIBILITY changes, r157097 and r157107
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llvm-svn: 157108
2012-05-19 07:14:17 +00:00
a1b6937dba
valarray resize should not be _LIBCPP_INLINE_VISIBILITY
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llvm-svn: 157107
2012-05-19 07:01:14 +00:00
8f69b1af3d
Move _LIBCPP_VISIBLE_INLINE from the out-of-line definitions of member
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functions to the original declarations, so that Clang will actually
see them. Part of <rdar://problem/11489333>.
llvm-svn: 157097
2012-05-19 04:41:25 +00:00
9042d623bf
Protect __shared_weak_count::__get_deleter declaration with _LIBCPP_NO_RTTI. Fixes http://llvm.org/bugs/show_bug.cgi?id=12867
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llvm-svn: 157049
2012-05-18 13:06:21 +00:00
423a8d7733
Fix several bugs in find/count specialized for bits.
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llvm-svn: 156546
2012-05-10 14:55:00 +00:00
19d9cbfb39
Add friends __count_bool_true and __count_bool_false to __bit_iterator.
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llvm-svn: 156543
2012-05-10 14:01:40 +00:00
0ae9efeb1a
SFINAE __bit_iterator such that it will only get instantiated with a container that has the nested type __storage_type. This prevents accidental instantiation such as in http://llvm.org/bugs/show_bug.cgi?id=12755 . This fixes http://llvm.org/bugs/show_bug.cgi?id=12755 .
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llvm-svn: 156308
2012-05-07 16:50:38 +00:00
df7aad41fd
Constrain __bind functor constructor such that it won't accidentally get used as a copy constructor from a non-const lvalue. Fixes <rdar://problem/11359080>.
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llvm-svn: 156182
2012-05-04 17:21:02 +00:00
9acfc3af72
Change std::abs from a template function to three overloads for float, double and long double.
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llvm-svn: 156064
2012-05-03 14:58:34 +00:00
bff1bfc6be
Greatly scale back ambitions of emulating move semantics in C++03 mode. It was causing more problems than it solved. This fixes http://llvm.org/bugs/show_bug.cgi?id=12704 .
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llvm-svn: 155918
2012-05-01 15:37:54 +00:00
11ffde3d7e
libc++: only #include <cxxabi.h> if it exists. This allows libc++ to build
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out of the box on Linux systems. If you're building against libc++abi, you
still need to make sure it can find <cxxabi.h> so it knows not to export
symbols which libc++abi provides.
llvm-svn: 155091
2012-04-19 01:36:12 +00:00
99f15d6eb7
libc++: Add some missing #includes to atomics tests. libc++ doesn't need these
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at the moment, but they allow these tests to be used to test clang against
libstdc++. Add myself to the credits file, as suggested by Howard.
llvm-svn: 155085
2012-04-19 00:50:47 +00:00
d01320c200
Apply noexcept and constexpr to <atomic>.
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llvm-svn: 154526
2012-04-11 20:14:21 +00:00
766e8ccbfc
Switch libc++ from __atomic_* builtins to __c11_atomic_* builtins.
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Per discussion with Howard, we are not interested in maintaining
compatibility with older versions of clang.
All tests pass with ToT clang, except for two which assert due to
a pre-existing, unrelated bug.
llvm-svn: 154521
2012-04-11 18:55:46 +00:00
cd42f9446b
Now that clang supports doing the right thing with regard to atomic
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initialisation, do the right thing with regard to atomic initialisation.
Note: clang r154507 or later required for <atomic> to work now.
llvm-svn: 154508
2012-04-11 17:26:23 +00:00
4fa71de024
Fix the remaining atomic tests, all of which were wrong for the case where a
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compare-and-exchange failed (it should update the expected value to the current
value, and the tests were checking that it didn't...).
Results of the atomics part of the test suite on FreeBSD with clang trunk and
the atomic.c from compiler-rt (currently kludged into the test, not installed
properly):
****************************************************
Results for /root/libc++/test/atomics:
using clang version 3.1 (trunk 153415)
Target: x86_64-unknown-freebsd10.0
Thread model: posix
with -std=c++0x -stdlib=libc++ -pthread /tmp/atomic.o
----------------------------------------------------
sections without tests : 0
sections with failures : 0
sections without failures: 14
+ ----
total number of sections : 14
----------------------------------------------------
number of tests failed : 0
number of tests passed : 52
+ ----
total number of tests : 52
****************************************************
Yay!
llvm-svn: 154095
2012-04-05 13:48:16 +00:00
ca917f5342
Fix test cases that were trying to make atomic things that are not trivially copyable.
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Now all of the test cases compile. Some of them even run!
llvm-svn: 154094
2012-04-05 13:23:08 +00:00
c5d5a98815
Fix use of __atomic_is_lock_free() intrinsic.
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llvm-svn: 154093
2012-04-05 13:13:24 +00:00
7e5b4c9328
Put std::piecewise_construct_t back into the dylib for ABI stability. When clients are in C++11/constexpr mode this will be safely ignored because piecewise_construct is then declared with internal linkage.
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llvm-svn: 153981
2012-04-03 23:45:46 +00:00
b2e9f19caf
constexpr support for <utility>. Patch contributed by Jonathan Sauer.
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llvm-svn: 153968
2012-04-03 21:09:48 +00:00
6e3e78acba
Updated documentation contributed by Christopher Jefferson.
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llvm-svn: 153955
2012-04-03 15:08:42 +00:00
e386b7b360
Update <random> with constexpr support. Patch contributed by Jonathan Sauer.
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llvm-svn: 153896
2012-04-02 21:00:45 +00:00
338eb3116c
Update <limits> with constexpr support. Patch contributed by Jonathan Sauer.
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llvm-svn: 153888
2012-04-02 19:23:15 +00:00
e8df82fa1a
Fix test for default constructor of discrete_distribution. This partially addresses http://llvm.org/bugs/show_bug.cgi?id=12436 .
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llvm-svn: 153873
2012-04-02 15:00:14 +00:00
788c9979d9
This is an initial commit of constexpr support as proposed by Richard Smith. This by no means completes constexpr support. Indeed, it hardly scratches the surface. All it does is lay the foundation in <__config> and changes those few places in the library that are already using that foundation.
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llvm-svn: 153856
2012-04-02 00:40:41 +00:00
0527c6207a
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.
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llvm-svn: 153855
2012-04-01 23:10:42 +00:00
cb16c68042
It appears that the standard accidentally removed the default constructor for error_category. I'm putting it back in. This fixes http://llvm.org/bugs/show_bug.cgi?id=12321 .
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llvm-svn: 153194
2012-03-21 16:18:57 +00:00
b2f52bb982
Allow libc++ to be built with CMake from within the LLVM tree. The libc++ part is just some renaming as the variable was already in use, conflicting with something else in the LLVM tree. Contributed by Ruben Van Boxem.
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llvm-svn: 153036
2012-03-19 15:40:23 +00:00
b4c7522790
Alter the terminal streams such that they do not get added to the atexit chain, and thus never get destructed.
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llvm-svn: 152926
2012-03-16 15:13:51 +00:00
1e02029f37
Undo some overzealous #ifdefs for LIBCXXRT.
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llvm-svn: 152718
2012-03-14 14:11:13 +00:00
5f13d66fb4
Make sure [at_]quick_exit is in std::
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llvm-svn: 152717
2012-03-14 14:10:37 +00:00
2f4cb4d79d
Don't refer to a function that doesn't exist in the quick_exit test.
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llvm-svn: 152716
2012-03-14 14:02:15 +00:00
9c95b19f9e
Fix moneypunct_byname algorithm to more accurately represent C locales in C++.
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llvm-svn: 152501
2012-03-10 18:31:43 +00:00
8d5df9b9d4
Change some smart_ptr == 0 to smart_ptr == nullptr. Fixes http://llvm.org/bugs/show_bug.cgi?id=12185 .
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llvm-svn: 152240
2012-03-07 20:37:43 +00:00
04e5ce2bc1
Define _WCHAR_T in solaris/wchar.h. This fixes a bug where Solaris 10 headers
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try to define C++ keywords as typedefs (fixed in Solaris 11).
llvm-svn: 151890
2012-03-02 10:56:04 +00:00
55661e7305
Fix MSVC / Sun #ifdef ordering. Remove another #if-nothing-#endif.
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Sorry for the churn.
llvm-svn: 151731
2012-02-29 16:41:21 +00:00
40d7a8acff
Remove a spurious #ifdef / #endif pair with nothing between them.
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llvm-svn: 151729
2012-02-29 16:22:33 +00:00
9e849ad302
Add a warning to ctype<char>::classic_table() if not implemented.
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llvm-svn: 151728
2012-02-29 16:08:57 +00:00
27e618efb6
I'm reverting one of the changes made to exception.cpp in r151717. I'm unsure what the change was trying to do, but it didn't do the right thing for __APPLE__. So instead of trying to guess what was intended, I'm just putting it back the way it was.
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llvm-svn: 151727
2012-02-29 15:37:30 +00:00
06af2bbb04
Add support files required for building on Solaris.
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llvm-svn: 151721
2012-02-29 13:17:28 +00:00
14c25b80e9
Solaris port. Currently sees around 200 test failures, mostly related to
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Solaris not providing some of the locales that the test suite uses.
Note: This depends on an xlocale (partial) implementation for Solaris and a
couple of fixed standard headers. These will be committed to a branch later
today.
llvm-svn: 151720
2012-02-29 13:05:08 +00:00
66d4573786
Make the failure reporting in testit a bit more useful.
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llvm-svn: 151719
2012-02-29 13:00:44 +00:00
ca78592c16
Don't define __locale_raii if we are not going to be using it.
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llvm-svn: 151718
2012-02-29 13:00:07 +00:00
e1da544e0b
Some libcxxrt-compatibility cleanups (avoid defining things twice).
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llvm-svn: 151717
2012-02-29 12:59:17 +00:00
9bb1429f20
Reduce the number of move constructions when constructing a std::function. This fixes http://llvm.org/bugs/show_bug.cgi?id=12105 .
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llvm-svn: 151652
2012-02-28 19:47:38 +00:00
9ffe10106e
vector::emplace_back was mistakenly requiring move assignable. Fixed that and did a little drive-by optimization at the same time. This fixes http://llvm.org/bugs/show_bug.cgi?id=12085 .
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llvm-svn: 151492
2012-02-26 15:30:12 +00:00
26bba442ac
update test for explicit bool operator.
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llvm-svn: 151461
2012-02-25 21:43:14 +00:00
908d2bebaf
At least temporarily move operator new/delete from the abi back to here. I'm having trouble reexporting it as a weak symbol.
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llvm-svn: 151459
2012-02-25 21:36:01 +00:00
25326f060d
ReExport some mor symbols from libc++abi.
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llvm-svn: 151453
2012-02-25 20:25:07 +00:00
167d0fbb8a
Silence some warnings in a test.
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llvm-svn: 151451
2012-02-25 20:04:11 +00:00
8d01935c09
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 .
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llvm-svn: 151406
2012-02-24 23:32:26 +00:00
d9d5b4492b
Use Xcode relative compilers when possible
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llvm-svn: 151108
2012-02-22 00:20:30 +00:00
f2f2d8b98d
Modernize conversion to bool to the explicit bool conversion operator (library wide). This fixes http://llvm.org/bugs/show_bug.cgi?id=12058 .
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llvm-svn: 151088
2012-02-21 21:46:43 +00:00
67f3964766
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 .
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llvm-svn: 151084
2012-02-21 21:02:58 +00:00
a4fd70ea77
Add missing newlines at EOF.
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llvm-svn: 150965
2012-02-20 16:56:13 +00:00
f87873b3b3
Silence -Wmissing-field-initializers a little higher in the source.
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llvm-svn: 150964
2012-02-20 16:51:43 +00:00
1c075b8934
Add myself to the CREDITS file.
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llvm-svn: 150935
2012-02-19 18:22:03 +00:00
7c24d8e70b
Initialize all the fields of struct tm before passing it to strftime. One of the uninitialized fields, probably the pointer field tm_zone, was causing a segfault on linux. Patch contributed by Jeffrey Yasskin.
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llvm-svn: 150929
2012-02-19 14:55:32 +00:00
08487f51b7
Relax pointer output test to accept glibc's output. Patch supplied by Jeffrey Yasskin.
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llvm-svn: 150927
2012-02-19 14:51:01 +00:00
2a9a072485
Give the emulated nullptr_t a default constructor.
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llvm-svn: 150893
2012-02-18 22:01:22 +00:00
c7cf23e4bf
Exercise rvalue arguements to make_shared for C++11 mode.
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llvm-svn: 150887
2012-02-18 20:12:03 +00:00
f95d9f0a3a
Move typeinfos for exceptions in <stdexcept> to the abi
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llvm-svn: 150835
2012-02-17 19:24:42 +00:00
f9c73f6629
Use __is_polymorphic if available. This fixes http://llvm.org/bugs/show_bug.cgi?id=11983 . Patch contributed by Jonathan Sauer.
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llvm-svn: 150614
2012-02-15 20:47:11 +00:00
fa8df7db88
tuple was accidentally lacking a valid copy assignment operator. It went undetected because I had failed to test assigning from a const lvalue. This fixes http://llvm.org/bugs/show_bug.cgi?id=11921
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llvm-svn: 150613
2012-02-15 20:13:52 +00:00
6560953383
Do not parse sign if a sign is not the next legal character when parsing floating point from an input stream. Fixes http://llvm.org/bugs/show_bug.cgi?id=11871
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llvm-svn: 150609
2012-02-15 19:19:37 +00:00
2aa9a38b67
Another stab at fixing http://llvm.org/bugs/show_bug.cgi?id=12007 . I earlier missed that there are two common_type definitions and corrected only one of them.
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llvm-svn: 150599
2012-02-15 18:08:09 +00:00
425e44d192
Remove reference from common_type definition. It looks like a recent clang decltype implementation got fixed/improved and exposed this. Fixes http://llvm.org/bugs/show_bug.cgi?id=12007 .
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llvm-svn: 150581
2012-02-15 15:08:30 +00:00
9741d6c96e
Implement a few optimizations for vector push_back and insert. Fixes r10828365.
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llvm-svn: 150542
2012-02-15 00:41:34 +00:00
e586ac735d
Provide a move(const T&) overload for C++03 mode to enable moving from rvalues. This is to support proxy references. Fixes r10858112.
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llvm-svn: 150488
2012-02-14 16:03:09 +00:00
27c8f620ee
Fix up narrowing conversions in switch statement.
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llvm-svn: 150082
2012-02-08 19:15:06 +00:00
23e4e4587f
Make attributes on definition consistent with those on declaration.
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llvm-svn: 149701
2012-02-03 18:31:43 +00:00
b8be700974
Added some more symbols to the v2 rexport list.
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llvm-svn: 149636
2012-02-02 22:01:34 +00:00
2c9c6a579a
Prepare for running on top of new libc++abi.
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llvm-svn: 149634
2012-02-02 20:48:35 +00:00
be745c8cce
Explicitly convert int to future_errc. Fixes http://llvm.org/bugs/show_bug.cgi?id=11428
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llvm-svn: 149630
2012-02-02 20:31:36 +00:00
1e2ca98cb2
Fix .PHONY target to match new installheaders target.
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llvm-svn: 148629
2012-01-21 06:16:39 +00:00
21fa1887e0
Enable full functionality of shared_ptr<const void> by adding allocator<const void>. Credit to John Hurley for discovering this bug.
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llvm-svn: 148508
2012-01-19 23:15:22 +00:00
f53bbd2a1e
Added installheaders target.
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llvm-svn: 148399
2012-01-18 17:44:31 +00:00
0fd9a6cc37
Remove installhdrs target from Makefile
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llvm-svn: 148396
2012-01-18 16:07:25 +00:00
f30d9ad6e1
Create target installhdrs as a synonym for do-installhdrs.
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llvm-svn: 148365
2012-01-18 00:30:57 +00:00
26e8d17f79
Put do-installhdrs target back into Makefile.
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llvm-svn: 148310
2012-01-17 17:01:18 +00:00
d6c77994b8
Stop installing headers, this is now done by clang
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llvm-svn: 148309
2012-01-17 16:09:32 +00:00
c37917f309
Fix http://llvm.org/bugs/show_bug.cgi?id=11752
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llvm-svn: 148069
2012-01-12 23:37:51 +00:00
a04d2b3330
Fix http://llvm.org/bugs/show_bug.cgi?id=11734
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llvm-svn: 147853
2012-01-10 15:15:47 +00:00
8e25104b10
1. Fix make_shared<const T>. 2. Allow allocator<const T> as an extension. 3. Refactor work which fixed unique_ptr<const T[]>. 4. Remove no-longer-needed private declarations from unique_ptr. 5. Add constraints to some shared_ptr and weak_ptr constructors and assignment operators so that is_constructible/is_assignable give the correct answers for shared_ptr and weak_ptr. 6. Make defensive preparations in the shared_ptr free functions for the introduction of shared_ptr<T[]> in the future. 7. As an optimization, add move constructor and move assignment to weak_ptr.
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llvm-svn: 147437
2012-01-02 17:56:02 +00:00
e9d3d21988
Happy new year 2012!
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llvm-svn: 147395
2012-01-01 08:16:56 +00:00
b34b48196c
The exception recovery mechanism for the uninitialized_* algorithms did not work for iterators into discontiguous memory.
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llvm-svn: 147343
2011-12-29 17:45:35 +00:00
45146a12cf
Fix memory leak in converting weak_ptr to shared_ptr
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llvm-svn: 147298
2011-12-27 22:20:51 +00:00
a87b5e3446
Fix http://llvm.org/bugs/show_bug.cgi?id=11616
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llvm-svn: 146881
2011-12-19 17:58:44 +00:00
18e33935f3
Some fixes to <atomic> operations to explicitly use atomic types and operations.
...
The integral types now work with clang trunk (if you remove the guard), although we're still missing an intrinsic for initialising atomics (needed for C1x too).
Howard: Please review.
llvm-svn: 146865
2011-12-19 11:44:20 +00:00
e4097ad7e6
Allow unique_ptr<T const []> to be constructed and assigned from a unique_ptr<T[]>
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llvm-svn: 146853
2011-12-18 21:19:44 +00:00
Howard Hinnant