Commit Graph

36 Commits

Author SHA1 Message Date
Marshall Clow fce85ba455 Fix incorrect type usage; nice catch by Sebastian
llvm-svn: 181569
2013-05-10 00:16:10 +00:00
Marshall Clow 0b0bbd2f22 Implement n3607: 'equal', 'mismatch', and 'is_permutation'
llvm-svn: 181548
2013-05-09 21:14:23 +00:00
Howard Hinnant b13fcad677 Somehow search_n never got tested, so of course it had a bug in it. This fixes http://llvm.org/bugs/show_bug.cgi?id=15667.
llvm-svn: 178764
2013-04-04 15:40:48 +00:00
Marshall Clow b6e5f854f5 Change the 'result_type' from unsigned to 'uint_fast32_t'. This eliminates truncation warnings on Linux
llvm-svn: 174669
2013-02-07 22:12:02 +00:00
Howard Hinnant 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.
llvm-svn: 174544
2013-02-06 21:03:39 +00:00
Howard Hinnant 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.
llvm-svn: 167486
2012-11-06 21:08:48 +00:00
Howard Hinnant 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
Howard Hinnant 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
Howard Hinnant e386b7b360 Update <random> with constexpr support. Patch contributed by Jonathan Sauer.
llvm-svn: 153896
2012-04-02 21:00:45 +00:00
Howard Hinnant 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.
llvm-svn: 153856
2012-04-02 00:40:41 +00:00
Howard Hinnant b34b48196c The exception recovery mechanism for the uninitialized_* algorithms did not work for iterators into discontiguous memory.
llvm-svn: 147343
2011-12-29 17:45:35 +00:00
Howard Hinnant c206366fd7 Quash a whole bunch of warnings
llvm-svn: 145624
2011-12-01 20:21:04 +00:00
Howard Hinnant c003db1fca Further macro protection by replacing _[A-Z] with _[A-Z]p
llvm-svn: 145410
2011-11-29 18:15:50 +00:00
Howard Hinnant ab4f438239 Add protection from min/max macros
llvm-svn: 145407
2011-11-29 16:45:27 +00:00
Howard Hinnant 1c2c87c502 Remove redundant iterator assignment detected by Marshall Clow
llvm-svn: 145265
2011-11-28 19:49:26 +00:00
Howard Hinnant 0176bc6cf5 Fixed bug in __independent_bits_engine found by Nick (from stackoverflow)
llvm-svn: 143104
2011-10-27 16:12:10 +00:00
Howard Hinnant e4383379ae More windows port work by Ruben Van Boxem
llvm-svn: 142732
2011-10-22 20:59:45 +00:00
Howard Hinnant 073458b1ab Windows support by Ruben Van Boxem.
llvm-svn: 142235
2011-10-17 20:05:10 +00:00
Howard Hinnant f554add54e Initial checkin for debug mode (version 2)
llvm-svn: 139711
2011-09-14 18:33:51 +00:00
Howard Hinnant 54976f2619 Fixed PR10574: http://llvm.org/bugs/show_bug.cgi?id=10574
llvm-svn: 137522
2011-08-12 21:56:02 +00:00
Howard Hinnant ce48a1137d _STD -> _VSTD to avoid macro clash on windows
llvm-svn: 134190
2011-06-30 21:18:19 +00:00
Howard Hinnant a676f7d36a noexcept for <utility>. This included a little repair on pair, and some noexcept workarounds.
llvm-svn: 132186
2011-05-27 15:04:19 +00:00
Howard Hinnant 99847d2bf1 Fix copy_n to increment only n-1 times for an input iterator. This works much better with std::istream_iterator<int>(std::cin). Credit: Matan Nassau.
llvm-svn: 126581
2011-02-27 20:55:39 +00:00
Howard Hinnant a0fe8c436e Chris Jefferson noted many places where function calls needed to be qualified (thanks Chris).
llvm-svn: 125510
2011-02-14 19:12:38 +00:00
Howard Hinnant ca74048398 N3142. Many of these traits are just placeholders with medium quality emulation; waiting on compiler intrinsics to do it right.
llvm-svn: 119854
2010-11-19 22:17:28 +00:00
Howard Hinnant fb34010258 LWG 1432
llvm-svn: 119611
2010-11-18 01:47:02 +00:00
Howard Hinnant 412dbebe1b license change
llvm-svn: 119395
2010-11-16 22:09:02 +00:00
Howard Hinnant 007b26be68 Fixed bug in random_shuffle to avoid swapping with self
llvm-svn: 117098
2010-10-22 15:26:39 +00:00
Howard Hinnant 7609c9b665 Changed __config to react to all of clang's currently documented has_feature flags, and renamed _LIBCPP_MOVE to _LIBCPP_HAS_NO_RVALUE_REFERENCES to be more consistent with the rest of the libc++'s flags, and with clang's nomenclature.
llvm-svn: 113086
2010-09-04 23:28:19 +00:00
Howard Hinnant b3371f6f49 Fixing whitespace problems
llvm-svn: 111750
2010-08-22 00:02:43 +00:00
Howard Hinnant 4eb27b79c1 US 122, N3106
llvm-svn: 111742
2010-08-21 20:10:01 +00:00
Howard Hinnant c8edcb3651 weekly test results plus a bug fix clang found
llvm-svn: 104877
2010-05-27 20:06:01 +00:00
Howard Hinnant f9d540b062 Completed [alg.random.shuffle].
llvm-svn: 104708
2010-05-26 17:49:34 +00:00
Howard Hinnant 128ba7191d patch by Jeffrey Yasskin for porting to Ubuntu Hardy. Everything was accepted except there were some bug fixes needed in <locale> for the __nolocale_* series. For the apple branch I ended up using templates instead of the var_args solution because it seemed both safer and more efficient.
llvm-svn: 104516
2010-05-24 17:49:41 +00:00
Howard Hinnant 5b08a8a432 Wiped out some non-ascii characters that snuck into the copyright.
llvm-svn: 103516
2010-05-11 21:36:01 +00:00
Howard Hinnant 3e519524c1 libcxx initial import
llvm-svn: 103490
2010-05-11 19:42:16 +00:00